This is exactly where the Ark Protocol comes in, a new proposal that wants to unlock cheap payments in Bitcoin without the end user even needing to know what a payment channel is.

In this guide you will understand what Ark is, why it was created, how it works behind the scenes with the famous VTXOs and the Operator figure, what the practical difference is to Lightning, what Ark Labs’ Arkade is that already runs on mainnet and how you can start using this technology today, even without being a developer.

Let’s go?!

What is Ark Protocol?

The Ark Protocol is a Bitcoin layer 2 designed to make off-chain payments in a scalable, instantaneous way and with extremely low costs, without requiring each user to manage payment channels individually.

The central idea is that you can receive, store and send bitcoin off chain within a shared structure, maintaining your self-custody, while the complexity of liquidity is in the hands of professional traders who take care of this part under the hood.

The protocol was originally designed by developer Burak in 2023 as an alternative to Lightning bottlenecks, and has since gained rapid traction in the ecosystem.

Ark Labs, founded by Marco Argentieri and supported by names like Tether, Tim Draper, Ego Death Capital and Anchorage Digital, is today the main company behind the practical implementation of the protocol, with an ambitious roadmap to transform Bitcoin into a programmable finance layer without needing a soft fork or external bridges.

For those who use Bitcoin on a daily basis, what is important to understand is that Ark is one of the first technologies that can deliver the Lightning experience, that is, instant and cheap payments, without the operational burden of channels, watchtowers, splicing, inbound liquidity management and channel state backup that scare both new users and developers.

Why was the Ark Protocol created?

To understand why Ark exists, it’s worth taking two steps back and honestly looking at Lightning’s limits. Lightning is one of the most brilliant technologies ever built on top of Bitcoin and revolutionized what was possible with sats payments, but it carries some assumptions that proved complicated in practice.

The main one is that each user, To use Lightning in your own custody, you need an open channel to receive payments and this channel requires liquidity on the other side, which means that someone needs to put bitcoin there for you to receive it.

This model works very well among professional nodes that move volume and do bidirectional trade, but it breaks down when the use case is the common consumer paying a merchant, because the flow is almost always unidirectional. The trader receives all the time and rarely sends, which unbalances the channel and forces constant liquidity management.

To solve this, Lightning Service Providers emerged, the famous LSPs, which alleviate some of the pain but add an intermediary that needs to be online all the time, which brings the custodial experience closer again.

Ark was born to attack exactly this problem. Instead of each user maintaining a personal channel with someone, users share a collective structure called a round, organized by a figure called an Operator, formerly known as ASP, who performs the function of coordinating liquidity behind the scenes.

The end user just needs to receive and send bitcoin naturally and the idea is that they don’t even know that there is an entire layer of engineering running back there.

How Ark works in practice

The centerpiece of Ark is the concept of VTXO, an acronym for Virtual Transaction Output, which is the off-chain version of a Bitcoin Common UTXO.

When you log into Ark, your balance is represented as one or more VTXOs within a shared transaction tree, anchored in a single on-chain output held by the Operator. This design is interesting because it allows hundreds or thousands of users to share a single output on the main blockchain, drastically reducing the cost of block space per user.

When you want to pay someone with Ark, what technically happens is a coordinated operation called a round. Several people who want to transact enter the same round, the Operator brings everything together in a single output tree and in a few seconds the payment is confirmed off chain for all participants simultaneously.

This batching is what makes Ark so efficient, as the on chain cost is diluted among all participants in the round, and the more people use the protocol, the lower the individual cost becomes.

The most important point of the design is that the Operator never takes possession of your bitcoin. It coordinates the tree and provides liquidity to anticipate payments, but all VTXO you have is redeemable unilaterally, that is, even if the Operator disappears, disappears from the map, goes offline or tries to block your funds, you can force your sats to go to a common Bitcoin on chain address without needing their cooperation. This unilateral exit property is what keeps Ark within the spirit of self-custody that defines Bitcoin.

Previously, VTXOs had an expiration date, which forced the user to periodically renew their balances so as not to lose the right to unilateral withdrawal. In July 2025, Ark Labs published an important evolution called Adios Expiry, which rethought the liveness and liquidity mechanism in order to remove this rigid expiration and make the experience even closer to a traditional wallet, without forced renewals for those who are using the system correctly.

Ark Protocol vs Lightning Network

Here is one of the questions that most arise when talking about Ark, so it’s worth explaining it calmly.

Lightning and Ark are not competing protocols in the sense that one cancels out the other, they solve similar problems through different paths and in practice are integrating, with Ark Labs building native bridges between the two worlds via its partnership with Boltz Exchange.

Lightning is a network of bilateral channels between nodes, in which each participant needs to open, maintain and eventually close channels to make routed payments. It works great when the user is supported by a robust wallet like Phoenix or an LSP, but the complexity is great for the common user.

Ark, on the other hand, dispenses with the concept of an individual channel in favor of a shared tree coordinated by the Operator, which radically simplifies the experience for the user and the wallet developer, as there is no channel to open, no capacity to calculate, no route to find.

See below for a direct comparison between the two technologies.

In other words, instead of competing, Ark and Lightning are complementing each other.

The Ark Labs team recently created Fulmine, a Bitcoin daemon designed for swap and payment hub operators, which combines Ark’s batched infrastructure with the Lightning Network through Boltz.

By August 2025 this integration had already processed over 1,300 payments and 0.2 BTC in volume during the Baltic Honeybadger in Riga, with users paying via Phoenix, Wallet of Satoshi and Aqua without even realizing that the backend was running on Ark.

What is Arkade, the flagship implementation of Ark

Arkade is the name of the main implementation of the Ark Protocol maintained by Ark Labs, launched in public beta in October 2025. It is described by the company itself as an operating system for programmable finance on top of Bitcoin, and the proposal goes well beyond just instant payments.

The idea is to deliver a complete infrastructure for developers to build wallets, payment gateways, lending products, native stablecoins and even trading, all with settlement in Bitcoin and without a soft fork in the base layer.

Arkade already comes with SDKs in TypeScript, Go and Rust to make the work easier for those who want to build wallets or services. It also has the official BTCPayServer plugin, which allows any merchant to start accepting payments via Ark with the same ease as accepting payments via Lightning.

Last year, Ark Labs also announced Arkade Assets, an extension that brings native support for stablecoins and other digital assets within the same model as UTXOs and VTXOs, without depending on external indexers or social consensus between projects.

In March 2026, the company announced a seed round of US$5.2 million with Tether in the lead, along with Ego Death Capital, Epoch VC, Lion26, Sats Ventures and Contribution Capital, in addition to the strategic investment from Anchorage Digital. The capital raised goes directly to accelerating Arkade as a global programmable infrastructure for fintechs, asset managers and brokerages that want to offer financial products with the security of Bitcoin without having to create their own custody.

Ark Integrations and Ecosystem

A protocol only becomes reality when the ecosystem adopts it, right? And regarding that, Ark has already arrived in 2026 with an interesting list of partners that are integrating or already running on top of the technology. Let’s go through the main ones.

Boltz Exchange is the project’s most strategic partner, providing the swaps infrastructure that connects Ark to the Lightning Network and sidechains like Liquid. It was this integration that allowed the Riga experiment where no user needed to change wallets to pay via Ark, because swaps happen transparently between networks.

BTCPayServer has an official plugin called ArkPayServer, maintained by Ark Labs CTO Mr. Kukks, which allows anyone running a BTCPay server to accept Ark payments immediately, with instant confirmation and reduced on-chain costs via batching. For those who accept Bitcoin in business, this is potentially a significant saving on fees and a huge improvement in the customer experience.

Wallets such as Breez, Bull Bitcoin, LayerZ Wallet and Lendasat have announced integration with Arkade and the expectation is that throughout 2026 more popular wallets will include native support for Ark, especially those focused on onboarding beginner users who suffer from Lightning’s learning curve.

Ark Labs itself has made available an open source reference wallet called Arkade Wallet to serve as a basis for others bitcoin developers and the Arkade Money app is now available for anyone who wants to try the technology in beta.

It is worth mentioning that Ark has also been in dialogue with the Taproot Assets universe, in a movement that explores taking tokens issued via Taproot Assets into Ark’s off-chain trees, paving the way for a unified model of payments and assets in Bitcoin without having to change the network’s consensus.

What changes in practice for those who use Bitcoin on a daily basis

If you are an ordinary user who just wants to buy bitcoin, store it safely and eventually pay for a VPN or a coffee without a headache, Ark’s impact will arrive quietly. The trend is for popular wallets to start offering instant receipts via Ark without you even needing to know what’s running behind it, in the same way that today you use Lightning in Wallet of Satoshi without needing to understand what HTLC or Onion Routing is.

For those who accept Bitcoin as a means of payment in a business, the advantage is more tangible and immediate. Ark eliminates the need to manage inbound liquidity, watchtowers, channel backup and splicing, three points that have always been a nightmare for those who just wanted to receive sats without becoming a network engineer. The trader simply receives a VTXO, and when he wants to move this balance to a cold wallet or for Lightning, it does this directly and quickly.

For developers and companies thinking about building products on top of Bitcoin, Arkade opens a huge door, because it solves once and for all the problem of offering a modern financial experience in sats without falling into the trap of holding customers’ balances. Lending, vaults, programmable accounts, payment gateways and yield products can be built with the same security as Bitcoin’s base layer and the speed that the modern user expects.

How to start using Ark Protocol today

For those who are users and just want to try the technology, the simplest way is to download the Arkade Wallet, which is the reference implementation maintained by Ark Labs. It is completely self-custodial, performs onboarding and off boarding via automatic swap with Lightning through Boltz and you can send payments to any Lightning invoice without running any node.

Remember that the software is still in public beta, so the official recommendation is not to place significant values ​​for hodl and treat this as an educational experiment.

For those who are developers, the official documentation There are complete tutorials for integrating the protocol via the TypeScript SDK, Go SDK or Rust SDK, and the Ark Labs GitHub repository hosts all open source components, including Fulmine, the BTCPayServer plugin and the SDKs.

For those who are merchants and use BTCPayServer, simply install the ArkPayServer plugin on the server panel to start accepting Ark payments immediately. Configuration is simple and the improvement in the billing experience is usually noticed from the first transaction, especially compared to the average time of traditional on-chain confirmations.

What to expect from Ark Protocol in 2026 and beyond

Ark stopped being an academic concept and became infrastructure running in production. The next few months tend to be one of accelerated expansion. With the entry of Tether’s capital in March 2026, the expectation is that Arkade will become a relevant payments layer for stablecoins on top of Bitcoin, especially for emerging markets where the use of USDT is already massive but today depends almost entirely on alternative networks such as Tron and Ethereum.

Technically, the roadmap points to richer scripting environments within the protocol, expanded support for Taproot Assets, integration with more popular wallets, and continued improvements to the trust minimized delegation model that came with the Adios Expiry update.

In the medium term, if the BitcoinCore eventually activating covenants via a future BIP, Ark could become even more efficient, but it is important to highlight that the technology works today without depending on any changes in the base layer.

Looking at the bigger picture, Ark positions itself as one of the central pieces of a new phase of Bitcoin, in which the base layer remains conservative and ultra secure, Lightning continues to be the skeleton of payments routed between professional nodes, and Ark enters as the mass onboarding layer that finally delivers the simple experience that was missing so that anyone, anywhere in the world, could use bitcoin on a daily basis without needing to understand the engineering that runs underneath.

Bitcoin continues to evolve silently and Ark is further proof that there is still a lot of beautiful engineering being done to make this network reach more people without losing its essence.

I hope you enjoyed learning about Ark!

Until next time and opt out!

The post Ark Protocol: what it is and how Bitcoin’s new layer 2 works appeared first on Area Bitcoin.

If you have ever used cash, you know it has a powerful property: no one needs to know who paid whom. No login, no registration, no history tied to your identity. That is what Cashu brings to the digital world. The most interesting part is that it does this without giving up integration with Bitcoin.

In this article, you will understand what Cashu is, who developed the protocol, how it works in practice, the difference between Cashu and eCash, which wallets and apps already use this technology, and why it may be so important for the future of Bitcoin payments.

Let’s dive in.

What is Cashu?

Cashu is an open-source protocol that turns bitcoin into private digital cash. Simple as that.

Think about paying for a coffee with a $10 bill. Nobody knows where that bill came from, how many hands it passed through, or where it goes next. Cashu does exactly that, but with bitcoin. It creates a privacy layer that makes transactions impossible to trace.

In practice, it works like this: you deposit bitcoin (usually via the Lightning Network) into a server called a mint. The mint then creates tokens equivalent to the value you deposited and gives those tokens to you. They are stored on your phone or computer, like digital bills in your pocket.

From there, you can send those tokens to anyone instantly and with no meaningful cost. You can keep them or redeem them back into bitcoin at any time. It is real money, just digital and private.

And here is the most interesting part: the mint does not know who you are. It cannot see who owns each token or track who it was sent to. This is possible thanks to a cryptographic technique called blind signatures, created by cryptographer David Chaum in the 1980s. It is like a bank stamping a bill inside a sealed envelope without ever seeing the serial number.

In short, Cashu takes bitcoin, which has all transactions publicly recorded on the blockchain, and adds a real privacy layer. The result: fast, cheap transactions that no one can trace.

Who created Cashu?

Cashu was created by Calle, known on X as @callebtc, an open-source developer with a PhD in Physics. Calle is also co-creator of Bitchat, the offline messaging app built on Bluetooth and mesh networking.

The first commit in the Cashu project was made in September 2022, when Calle published Nutshell, the first wallet and mint implementation of the protocol, written in Python. Since then, the ecosystem has grown quickly, with implementations in TypeScript, Rust, and multiple wallets for iOS, Android, and web.

Calle also created the OpenCash Association, a nonprofit focused on supporting the sustainable development of open-source digital cash projects using the Cashu protocol.

How does this protocol work?

To understand Cashu, let’s use a simple analogy.

Imagine you go to a currency exchange and swap $100 for casino chips. Those chips represent value. You can use them, give them to a friend, or exchange them back for money. The difference is that, in Cashu, the exchange house (mint) does not know which chips are yours.

Technically, the process works in three steps:

1. Deposit (Minting)

You send bitcoin to the mint via the Lightning Network. The mint receives the payment and creates eCash tokens signed with its private key. Before signing, tokens go through a blinding process, where the mint signs without knowing the exact token content.

2. Transfer

With eCash tokens on your device, you can send them to anyone. The transfer is peer-to-peer: copy and paste the token string or scan a QR code. No internet is required at the moment of transfer. The receiver gets the token and redeems it at the mint, which verifies the signature, invalidates the old token, and issues a new one.

3. Redemption (Melting)

When you want to convert tokens back to bitcoin, you do the reverse. You present the tokens to the mint, it verifies the signature, destroys the tokens, and sends the equivalent bitcoin to your Lightning wallet.

The cryptography behind it

Cashu uses BDHKE (Blind Diffie-Hellman Key Exchange). In simple terms:

• The mint publishes its public key.
• The user (for example, Alice) chooses a random secret and blinds it mathematically before sending it to the mint.
• The mint signs the blinded token and returns it.
• The user removes the blinding and gets a valid signature that the mint cannot trace.
• When Alice sends the token to Carol, Carol presents it to the mint for verification, and the mint confirms it without knowing the token came from Alice.

Result: instant transactions, no significant fees, and full privacy.

What is the difference between Cashu and eCash?

This is a common question.

eCash (or Chaumian eCash) is the concept of electronic money invented by David Chaum in the 1980s. It is the theoretical idea of using blind signatures to create anonymous digital tokens that behave like physical cash.

Cashu is a modern implementation of that concept, integrated with Bitcoin. In other words, Cashu is eCash in practice, built on Bitcoin and the Lightning Network.

The big difference is historical: in the 1990s, Chaum’s eCash depended on centralized banks (like DigiCash). It failed because it required a trusted issuer and demand for digital payments was still low.

Cashu addresses this in two ways:

1. Anyone can run a mint, so it does not depend on banks or companies.
2. Tokens are backed by Bitcoin, not by government-controlled fiat.

eCash vs Cashu (quick comparison)

The table below makes the differences easier to visualize:

Cashu vs Fedimint: what is the difference?

Another protocol often compared to Cashu is Fedimint. Both implement Chaumian eCash for Bitcoin, but with different custody models:

• Cashu uses a single mint. One entity operates the mint, signs tokens, and holds the corresponding bitcoin. It is simpler and faster to set up.
• Fedimint uses a federated model. Multiple independent parties operate the mint together using multisig. No single entity controls funds.

In practice, Cashu is ideal for smaller applications, experiments, app integrations, and personal use, while Fedimint is better suited for communities and groups that want stronger collaborative custody.

They are not direct competitors. They complement each other and solve different problems within the Bitcoin ecosystem.

Cashu and the Lightning Network

Cashu and the Lightning Network work together in a complementary way.

Lightning is Bitcoin’s fast payment layer, allowing near-instant transactions with low fees. Cashu uses Lightning as the bridge between on-chain Bitcoin and private eCash.

It works like this:

• To enter Cashu: you pay a Lightning invoice and receive eCash tokens.
• To leave Cashu: you present tokens and receive a Lightning payment.
• Between mints: if someone from one mint pays someone on another mint, payment is routed via Lightning automatically.

This solves one of eCash’s biggest challenges: interoperability. Even with many different mints, they can transact with each other through Lightning, forming a global network of private payments.

Cashu also adds something Lightning alone does not provide: real privacy. On Lightning, routing nodes can observe amounts and route details. In Cashu, transactions between users of the same mint are opaque.

Wallets and apps that use Cashu

The Cashu ecosystem has grown quickly since 2022. Today, many wallets and apps support the protocol across mobile and web.

Mobile wallets

• Macadamia (iOS, Swift)
• Sovran (iOS)
• Minibits (Android)
• eNuts (Android and iOS, community-built)

Web wallets (PWA)

• Cashu.me (official web wallet by Calle; supports Bitcoin and USD, seed backup, offline send/receive, animated QR codes, mint discovery via Nostr)
• Nutstash (web wallet with multi-mint support and token transfer via Nostr)

On-chain/Lightning wallets with Cashu integration

• Blitz
• Coinos
• Voltz
• Zeus

CLI tools

• Nutshell (reference Python implementation; wallet and mint via command line)
• CDK Wallet (Rust CLI wallet)

Projects integrating Cashu

• Bitchat (offline Bluetooth messenger with native Cashu wallet integration)
• BTCNutServer (BTCPay Server plugin for Cashu token payments)
• npub.cash (receive funds via Lightning addresses on Nostr using Cashu mints)
• Numo (Point-of-Sale app that accepts Cashu and Lightning)
• hashpool (mining pool using eCash for share representation without account signup)
• Athenut (privacy-preserving search with Cashu payments)
• TollGate (turns WiFi routers into decentralized internet providers using Bitcoin and eCash)
• routstr (LLM API marketplace using Cashu tokens)

Cashu and Nostr

Cashu has a natural relationship with Nostr, the decentralized communication protocol. Several Cashu wallets support sending and receiving tokens via Nostr, and npub.cash allows Nostr users to receive Lightning payments through a Cashu mint.

This pairing makes sense: Nostr already uses Lightning for zaps, and Cashu adds a privacy layer that Lightning alone does not provide. Wallets like Nutstash and Cashu.me already support mint discovery and token exchange directly through Nostr.

Cashu advantages

Cashu offers several advantages compared to traditional payment systems and even on-chain Bitcoin transactions:

1. Real privacy

The mint does not keep account databases or transaction history. Thanks to blind signatures, it cannot link a deposit to a spend. This is fundamentally different from banks, exchanges, or Bitcoin’s public blockchain.

2. Instant transactions

eCash payments are final and instant. No blocks to wait for, no pending confirmations.

3. Near-zero fees

Transactions between users of the same mint have no fee. The only fees are Lightning fees when depositing or redeeming bitcoin, and those are usually very low.

4. Works offline

eCash tokens are bearer tokens. They can be transferred offline via QR code, NFC, Bluetooth, or even paper. The receiver only needs to be online to verify or redeem at the mint.

5. Open source and interoperable

Cashu is fully open source and its specs are public. The specifications are called NUTs (Notation, Usage, and Terminology). Any developer can build a compatible wallet or mint.

6. Programmable

Cashu tokens support advanced spending conditions such as P2PK and HTLCs, enabling conditional payments and simple smart contracts.

Limitations and trade-offs

Like any technology, Cashu has limitations:

1. Trust in the mint

This is the main trade-off. When you deposit bitcoin into a Cashu mint, you trust that mint to honor token redemption. If it disappears or acts maliciously, you may lose funds. For that reason, do not store large amounts in eCash. Use it for everyday transactional value, like cash in a physical wallet.

2. Not externally auditable

Because of privacy, you cannot externally audit how much eCash a mint issued. In theory, a mint could issue more tokens than it has in bitcoin reserves. This is an inherent challenge in any eCash system.

3. Not full self-custody

Cashu is delegated custody, not full self-custody. Your tokens are bearer tokens, but the underlying bitcoin is held by the mint. For larger amounts, use self-custody wallets.

4. Mints can face regulation

Depending on jurisdiction, running a mint may attract regulatory attention, since it involves custody of third-party bitcoin. The ecosystem is still working through this challenge.

How to use Cashu in practice (step by step)

Want to try Cashu? The easiest way is the Cashu.me web wallet.

Step 1: Access the wallet

Open cashu.me on your phone or computer browser. It works as a PWA, so you can install it on your home screen like a native app.

Step 2: Choose a mint

The wallet comes with a default mint. You can add others or discover new ones through Nostr. Remember: your chosen mint is the one custodying your bitcoin, so choose one you trust.

Step 3: Deposit bitcoin

Click Receive and choose Lightning. The wallet generates an invoice you can pay from any Lightning wallet. Once confirmed, your eCash tokens appear in balance.

Step 4: Send eCash

Click Send, enter amount, and choose method. The receiver can redeem in any compatible Cashu wallet.

Step 5: Redeem to Lightning

To convert back to bitcoin, paste a Lightning invoice into your Cashu wallet. It pays using your eCash tokens.

NUTs: Cashu protocol specifications

Cashu’s technical specs are called NUTs (Notation, Usage, and Terminology). They describe all key parts of the protocol: token creation, transfer, verification, and redemption.

NUTs are public GitHub documents and ensure compatibility across implementations in Python, TypeScript, Rust, and more.

Development libraries include:

• Nutshell (Python, original reference)
• cashu-ts (TypeScript)
• CDK, Cashu Development Kit (Rust)

If you are a developer, you can build your own wallet or mint using these libraries.

Cashu mints: how they work

A mint is the core of the Cashu system. It is the server that custodies bitcoin and issues eCash tokens. The three main mint implementations today are:

• Nutshell (Python, supports PostgreSQL and SQLite)
• mintd (Rust, part of CDK)
• Nutmix (Go)

Anyone can run their own mint with a server, a Lightning node, and the software. Mints are independent, and users choose which one to trust, with one key difference from traditional banks: the mint does not know who you are.

Cashu and privacy: why it matters

We live in an era where every digital transaction leaves a trace. Banks, fintechs, exchanges, and even Bitcoin’s blockchain record activity. Tools like Silent Payments and CoinJoin help, but they have limits.

Cashu takes a different approach: instead of trying to hide transactions on a public ledger, it records nothing at the user-account level. The mint has no account database, no stored transaction history, and no knowledge of who paid whom.

This is especially relevant for:

• Micropayments: paying for an article, search, or coffee without creating a permanent data trail.
• Protection against hacks: if user data is not stored, there is less data to leak.
• Censorship resistance: in authoritarian contexts, private transactions may be critical.

As cypherpunks say: privacy is not about having something to hide, it is about having the right to choose what to reveal.

The future of Cashu

The Cashu ecosystem is growing quickly. Since its first commit in 2022, the project now has many repositories, multi-language libraries, wallets on major platforms, and a growing open-source community.

Developments worth watching:

• Cashu in Bitchat: native eCash wallet integration for phone-to-phone bitcoin transfer over Bluetooth, without internet.
• eCash for AI: projects like routstr already use Cashu for API micropayments without registration.
• Web payment standard: Cashu tokens embedded in HTTP requests as a potential new micropayment pattern.
• Mining without accounts: hashpool uses eCash to represent mining shares without pool accounts.

Cashu is not trying to replace on-chain Bitcoin or Lightning. It is an additional layer focused on a specific need: fast, cheap, truly private digital payments.

Frequently Asked Questions

What is Cashu?

Cashu is a free, open-source eCash protocol built for Bitcoin. It enables instant, private, and near-free transactions with blind-signature cryptography. Tokens stay on your device and can be sent to anyone.

Is Cashu secure?

Cashu’s cryptography is solid and based on decades of research. The main risk is custody: tokens depend on the mint honoring redemption. Use Cashu for small day-to-day amounts, and use self-custody cold storage for larger holdings.

What is the difference between Cashu and Bitcoin?

Bitcoin is a decentralized digital money network with a public blockchain and full self-custody. Cashu is a privacy layer on top of Bitcoin that uses eCash for fast, private payments. Cashu complements Bitcoin rather than replacing it.

Who created Cashu?

Cashu was created by Calle (@callebtc), an open-source developer with a PhD in Physics, co-creator of Bitchat, and founder of OpenCash Association.

What is the difference between Cashu and Fedimint?

Both implement Chaumian eCash for Bitcoin. Cashu usually runs as a single mint model, while Fedimint uses a federated multisig model. Cashu is simpler; Fedimint is generally stronger for shared custody setups.

Can I lose my Cashu tokens?

Yes. If a mint goes offline or disappears, you can lose eCash held there. You can also lose tokens if you lose device access without seed backup. Use Cashu for small balances.

How can I try Cashu?

The easiest way is to open cashu.me in a browser, choose a mint, deposit a small amount of sats via Lightning, and start sending and receiving eCash. No sign-up, email, or personal data required.

Does Cashu work offline?

Partially. eCash tokens can be transferred offline via QR, text, Bluetooth, and similar methods. But depositing, redeeming, and mint-side verification require internet access.

Related reading

• What is Bitcoin?
• eCash: A Game Changer in Fintech
• David Chaum: Meet the Creator of eCash
• Nostr: learn about the censorship-resistant X!
• Silent Payments: A New Era of Privacy in Bitcoin
• Is Bitcoin Anonymous?

Conclusion

At its core, Cashu delivers on a long-standing vision that began in 1983 with David Chaum: digital money that behaves like physical cash. Private, instant, and without intermediaries tracking every transaction.

The difference now is that we have Bitcoin as the reserve asset, Lightning as infrastructure, and a vibrant open-source ecosystem building practical tools.

If you are exploring Bitcoin, understanding Cashu means understanding the next step in digital payment evolution. Try it, test with small amounts, and see how it works in practice.

See you next time. OPT OUT.

The post What Is Cashu? The Private Bitcoin Payment Layer You Should Know appeared first on Area Bitcoin.

With features such as CoinJoin support and the ability to conduct transactions via radio and SMS, the wallet attracted many privacy-conscious users. However, it also drew the attention of users who were considered “less well-intentioned” by governments. This ultimately led to the app being removed from the Google Play Store and even the arrest of the developers behind it.

In this article, we’ll explore how this story unfolded and its implications for privacy in the Bitcoin world.

How did this story begin?

The attention of U.S. authorities wasn’t exactly new for Samourai Wallet, largely due to its “aggressive” or “questionable” marketing approach.

In 2022, amidst the war between Russia and Ukraine, several Russian oligarchs were sanctioned and excluded from international financial systems.

In response to this movement, the official Samourai Wallet account tweeted: “Welcome Russian oligarchs.” Unsurprisingly, this statement didn’t sit well with U.S. government officials.

In another case, after Europol labeled Samourai Wallet as an “emerging threat,” the wallet’s CTO responded with a fiery retort on X (formerly Twitter): “Do you see us shitting in our pants?”

As the saying goes: “Ask for trouble, and you’ll get it.”

Arrest of the Developers

In April 2024, arrest warrants were issued for Samourai Wallet CEO Keonne Rodriguez, 35, and CTO William Lonergan Hill, 65. Both faced charges of money laundering and “operating an unlicensed money transmission service.”

Keonne was arrested in Pennsylvania, USA, while William was detained in Portugal, where authorities prepared for his extradition to the U.S. However, on July 9 of the same year, Hill’s attorney proposed a $3 million bail, with the condition that Hill be allowed to remain in Portugal. The judge accepted this proposal, requiring Hill to attend court hearings in the United States whenever summoned.

This case bears some similarities to the Tornado Cash controversy in the Ethereum shitcoin ecosystem the previous year, which involved similar charges in a different context.

Analysis of the Accusations from a Technical Perspective

From a technical standpoint, the accusations simply don’t hold up. Let’s break down the charges, starting with the allegation of money laundering.

No Bitcoin wallet software—whether it’s Samourai Wallet, Electrum, Blue Wallet, Green Wallet, etc—actually holds your bitcoins. These applications are merely tools that facilitate interaction with the Bitcoin network. Technically, your bitcoins reside in your addresses, which are derived from your seed phrase.

The balance in these addresses is recorded on Bitcoin’s public ledger, the Blockchain. The Blockchain itself is decentralized, with every node on the network maintaining a copy of these records.

By the same logic used to arrest the accused developers, should we also arrest everyone who holds a copy of the Blockchain? Should we arrest all Bitcoin users running a full node?

Now, let’s address the second charge: “operating an unlicensed money transmission service.”

Bitcoin, by design, operates without the need for governmental approval or oversight. Does this mean that anyone transferring as little as 1 satoshi is committing a crime? Is it even feasible—or economically practical—to “arrest” every Bitcoin user worldwide?

These questions remain open, for both Bitcoin users to reflect on whether “these demands can realistically be followed to the letter” and for government agents to consider whether “these requirements make logical sense.”

The Samourai Wallet

Samourai Wallet is a privacy-focused Bitcoin wallet offering features like offline transactions, CoinJoin, and Ricochet, all designed to protect users from government and corporate surveillance.

Created as a direct response to increasing financial surveillance initiatives, the wallet offers a range of innovative tools to prioritize and safeguard user privacy.

Notable features included:

• Whirlpool: A CoinJoin protocol that mixes transaction inputs and outputs, making it harder to trace funds on the blockchain.
• Ricochet: Added “hops” within a Bitcoin transaction, increasing the number of intermediate addresses between the source and destination addresses, complicating Chain Analysis efforts.
• Offline Transactions: Sending transactions via SMS or radio allowed the wallet to be used in completely disconnected environments, expanding accessibility for users in areas with limited or nonexistent infrastructure, or where connectivity might be monitored by dictatorial governments.

It’s essential to emphasize that although these features are neutral in their design and legal to use, regulators interpreted them as tools that could facilitate hiding illegal activities in the case of Samourai.

The Right to Privacy vs. State Regulation

The case of Samourai Wallet ignited a debate between two seemingly compatible but fundamentally conflicting principles: individual privacy and constant surveillance “in the name of collective safety.”

Argument for State Regulation

Advocates of state regulation, including the U.S. government, argue that non-compliance with rules like Know Your Customer (KYC) and Anti-Money Laundering (AML) enables illicit activities.

This argument resonates with many, especially during times when major media outlets highlight rising crime rates — whether physical or virtual — and the use of cryptocurrencies in crimes such as drug trafficking and terrorist financing.

A frequently cited example to support this argument is the Tornado Cash case (mentioned earlier), which was used by the North Korean hacker group Lazarus to launder proceeds from illicit activities.

Argument for Privacy

For privacy advocates and defenders of the Samourai Wallet, privacy is fundamentally a human right. People should not be treated as criminals for desiring more privacy. After all, just because someone has nothing to hide doesn’t mean they stop using curtains or closing their windows.

Moreover, the “pro-privacy” group fears that these increasing regulations could establish legal precedents used to justify broader crackdowns on any individual employing tools not aligned with centralized controls — or worse, targeting dissenters of the prevailing regime’s ideology.

The right to privacy is even enshrined in the Universal Declaration of Human Rights, Article 12, which states:

“No one shall be subjected to arbitrary interference with his privacy, family, home or correspondence […]. Everyone has the right to the protection of the law against such interference or attacks.”

This declaration, drafted and signed by multiple nations in the aftermath of World War II, serves as the foundation for many constitutional frameworks in the signatory countries.

Curiously, these principles often seem to be respected only when it’s convenient, don’t they?

Another layer of irony lies in the hypocritical argument of “criminalizing Bitcoin use because part of the network is employed for illicit purposes.” If this logic were followed consistently, fiat currencies like the U.S. dollar or Brazilian real should also be banned. It’s well-documented that the dollar is widely used by major banks and criminal organizations to launder money or sidestep legal accusations.

Just to cite two examples, there is The Telegraph‘s report on the Wagner mercenary group, which used HSBC and JP Morgan accounts to launder money by purchasing mining equipment. And in another case, the BBC reported that JP Morgan Chase paid a $290 million “fine” to “settle charges relating to abuse suffered by Epstein Island victims.”

Ashigaru Wallet: A Response to the Samourai Case

After the arrest of the Samourai Wallet founders, an independent group of developers launched the Ashigaru Mobile Wallet, a fork of the original Samourai Wallet code.

The Symbolism of the Name “Ashigaru”

The name “Ashigaru” originates from the Japanese word 足軽 (pronounced あしがる, a-shi-ga-ru), which literally means “light feet.” Historically, it referred to common infantry soldiers during Japan’s feudal era.

While samurai symbolized the feudal lords, ashigaru represented the everyday soldiers, embodying the spirit of “power to the people.” This idea aligns with the Bitcoin community’s frequent slogan, “We are all Satoshi.”

According to the project page, the name symbolizes: “Individuals of humble origins who, when needed, equip themselves with the tools available to fight during times of significant change.”

What is the Ashigaru Wallet?

The Ashigaru Wallet is a Bitcoin wallet built from the Samourai Wallet’s code, developed by an independent group of developers with a strong emphasis on decentralization.

As the developers explain: “We believe that anyone can engage in peaceful, voluntary, and private commerce on the Internet, without being subject to tracking, surveillance, or censorship.”

To achieve this, the wallet takes two key approaches: requiring users to connect to their own nodes and enabling Tor by default on all project servers.

• Nodes Bitcoin in Ashigaru: Unlike Samourai, which offered a non-custodial wallet option, Ashigaru requires users to configure and use their own Bitcoin nodes. This approach decentralizes application usage and significantly reduces potential attack vectors.
• Tor Integration for Project Servers: Instead of using mainstream platforms like GitHub to host its code, Ashigaru developers opted to store it on servers running Tor (The Onion Routing). This prevents, for example, a single court order sent to GitHub’s headquarters from bringing down the wallet’s entire infrastructure.

By adopting these and other features, Ashigaru Wallet reaffirms its commitment to privacy.

The development of this application stands as a testament to the resilience of the privacy-focused community, which continues to create robust tools despite legal and regulatory challenges. Much like the mythological Hydra of Lerna—“cut off one head, and two grow in its place”—the takedown of Samourai Wallet has led to the rise of two (or more) even stronger solutions.

Conclusions

The arrest of the developers behind Samourai Wallet marks a pivotal moment in the Bitcoin ecosystem.

As governments push for greater transparency and “compliance with local rules,” the Bitcoin community continues to resist and, more importantly, demonstrate resilience by offering even more private and powerful tools — upholding Bitcoin’s founding philosophy as a medium for anonymous, decentralized transactions that empower individuals.

The outcome of this case will likely shape the future of privacy tools, testing the boundaries of regulation and Bitcoin’s ability to function beyond state control.

At the heart of this battle lies a fundamental question: Is privacy an inherent right that can be freely exercised, or must it be subordinated to the demands of public safety?

If there’s one clear takeaway from the Samourai Wallet case, it’s that the fight for privacy is far from over. The lessons learned will continue to influence the development and adoption of privacy-enhancing technologies across the Bitcoin ecosystem.

Until next time, opt out!

The post The Turnaround in Privacy: From Samourai Wallet to Ashigaru appeared first on Area Bitcoin.

In this article, we’ll explore the features, technical aspects, and benefits of the Amethyst app, while also examining its importance in the growing landscape of decentralized social networks.

Let’s get started!

What Is Nostr?

Nostr is a decentralized communication protocol built on public key cryptography. It supports the development of decentralized social network applications and peer-to-peer communication channels. The primary aim of Nostr is to enable information exchange without relying on central servers, prioritizing user privacy and freedom of expression.

Unlike traditional social media platforms, where companies control both the platform and message storage, Nostr gives users the freedom to choose their relays, granting full control over where their data is stored.

The Amethyst App for Android

Amethyst, developed by Vitor Pamplona, is a Nostr client designed specifically for Android devices. This open-source application has a vibrant community of over 100 developers actively contributing to its ongoing improvement.

Known for its user-friendly interface, Amethyst excels at delivering an intuitive user experience within a decentralized environment.

In the sections below, we’ll explore its key features and discover what sets it apart from other social media clients.

Ready to dive in? Let’s go!

Key Features of Amethyst

1. Intuitive User Interface

Amethyst is designed with simplicity in mind, offering a graphical interface similar to conventional social networks. However, it is backed by a robust technical infrastructure that ensures greater privacy and freedom for users.

The app focuses on delivering an effortless user experience, making it easy for even those unfamiliar with decentralized networks to navigate and interact seamlessly.

2. Profile Creation and Management

Amethyst uses a unique system where each user’s profile is identified by a public key, serving as their primary identifier on the Nostr network.

To maintain security, users safeguard a private key, which is used to sign messages and authenticate their profiles. This public-private key system eliminates the need for traditional account creation with email and passwords, enhancing security and anonymity for users.

3. Authenticated Messages

A core feature of Nostr is that all user messages are digitally signed, allowing any user on the network to verify their authenticity. This ensures the integrity and legitimacy of interactions across the platform.

Amethyst leverages this functionality to prevent message manipulation and create a trusted communication environment for its users.

4. Relay Connections

To communicate on the Nostr network, Amethyst allows users to connect to different relays. This flexibility is one of the most important aspects of Nostr, as it allows users to choose which servers they want to use to store and relay their messages.

Amethyst thus provides an easy-to-configure interface so that users can add and remove relays as needed, optimizing data distribution and increasing network resilience.

5. Security and Privacy

Amethyst, built on the Nostr protocol, ensures message privacy through end-to-end encryption.

The app does not collect user data, and all interactions occur directly between devices and network relays. By avoiding centralized servers and refraining from storing personal information, Amethyst significantly reduces the risk of data exposure to potential attackers.

A noteworthy addition to Amethyst is its support for the Tor network.

What is the Tor Network?

The Tor network (The Onion Router) is an anonymity system that uses multiple layers of encryption to protect data traffic. As data passes through a series of servers (called “nodes”), each layer of encryption is gradually removed, making it nearly impossible to trace the origin of the data. Tor is widely used to enhance privacy and protect users from identification or tracking online.

How Tor Enhances Amethyst

With Tor integration, Amethyst provides an additional layer of security and anonymity. This feature is particularly valuable for platforms prioritizing privacy and freedom of expression. By using Tor, Amethyst helps users maintain anonymity, prevent third-party censorship, and block attempts to monitor or filter network traffic. This ensures safer, more private communication for its users.

6. Bitcoin Integration

Amethyst integrates seamlessly with the Bitcoin network through the Lightning Network, enabling innovative payment features like the “value4value” model.

This model allows users to directly and financially support their favorite content creators, fostering a transparent and decentralised approach to monetization. With no hidden rules or risks of losing sponsorships due to adherence to arbitrary standards, this mechanism brings a revolutionary shift to the content creation landscape.

Architecture and Technologies Used in Amethyst

Amethyst is built with Kotlin, one of the most advanced programming languages for Android app development.

The app’s architecture follows the principles of the reactive programming model, enabling efficient communication and real-time updates for messages received from relays.

Use of Kotlin and Android Jetpack

As mentioned earlier, Amethyst is developed in Kotlin, a language known for its concise syntax and enhanced error safety compared to Java.

Additionally, the integration of Android Jetpack further enhances the app by enabling the use of modern, modular components, making it both scalable and easier to maintain.

Local Storage and Relay Synchronization

While Nostr primarily depends on relays for storage, Amethyst enhances user experience by utilizing local storage to cache messages. This not only improves loading speed but also enables users to access content offline.

Relay synchronization is handled automatically, ensuring the cache stays up-to-date while minimizing mobile data usage.

Using Amethyst in Practice

Now that you understand what Amethyst is, let’s dive into how to use it!

1. Creating an Account

To get started with Nostr, you’ll need to create a pair of keys:

• A private key
• A public key

When you first open the Amethyst app, you’ll be greeted with a screen to either access an existing account (by importing a key if you’re migrating from another Nostr client) or create a new one.

In this example, we’ll focus on creating a new account:

Under “Don’t have a Nostr account?”, click on the “Submit” button. You will then be redirected to the following screen.

Choose a name for your username and click on “Create Account”.

By default, your “feed” (home page) will be empty.

2. Searching for Other Users

From the main page, click on the magnifying glass icon (in the top right corner) and type in the name of the profile you are looking for.

In this example, we will search for the Area Bitcoin profile.

Be cautious of profiles attempting to impersonate the one you’re searching for, especially if it belongs to a public figure or a well-known institution.

To ensure you’re accessing the correct profile, use its public key, which is unique across the network.

Therefore, the Area Bitcoin public key is: npub13zpemj05wvgadhgyyv4e0captmkd64p8kz323pfq87ffahrws0ms9yp5ww

Follow us while you’re at it! 😉

3. Making a Post (Note)

In Amethyst, you can post notes publicly to everyone connected to the same relays as you or send private messages to specific users.

3.1 Sending a public note

From the home page, click on the pen icon (in the bottom right corner) and a screen containing a a text box will appear.

Once you have finished entering your text, click on “Save”.

3.2 Sending a private note

From the page of the profile you wish to chat with privately, click on the envelope icon at the top of the screen and a screen similar to the one shown below will appear.

In the text box labeled “reply here…”, type the message you want to send. Once you’re finished, click the airplane icon to send it.

Back on the home page, you can view all the private messages you’ve sent by clicking the envelope icon located in the bottom bar of the app screen.

In addition to your sent messages, the app will display all messages from the Nostr global channel and the Amethyst channel.

If you’d prefer not to receive notifications from these channels, you can choose to “unfollow these channels.”

4. Connecting your Bitcoin Lightning wallet to Amethyst

While still on the main page, click on your profile picture to display the side menu.

Now, click on “Profile” and then click on the icon next to the envelope to edit your account information.

Click on the icon next to the envelope to edit your account information.

Once done, enter the address of your Lightning wallet in the “LN Address” region and then click on “Save”.

5. Structure of a note in Amethyst

Notes (posts) shared on the Nostr network and displayed in the Amethyst app follow a structured format, as shown in the screenshot below.

From left to right at the bottom of a note, you’ll see:

1. The number of comments on the note.
2. The number of reshares.
3. The number of reactions, which can include any emoji.
4. The number of zaps sent for that note.

By the way, zaps are satoshis (small Bitcoin units) sent to support a post. For example, in the note shown above, 7 satoshis were sent.

6. Sending a Zap

To send a Zap, ensure your Lightning wallet is connected to your account. Select a publication you want to support with Zaps. For this example, we’ll choose a publication from one of Nostr’s creators, fiatjaf. Simply click on the Lightning icon and select the amount you wish to send.

If you’d like to edit the pre-selected values, you can also customise which options will appear. Press and hold the Lightning icon until a new window opens. After making your changes, click “Save” to confirm.

Once you have finished making your changes, click “Save”.

7. Enabling TOR by default in your connections

Amethyst now includes built-in support for the Tor network, offering enhanced privacy features. You can choose to connect through software running a Tor proxy, such as Orbot, or let the Amethyst application handle the proxy setup directly.

To enable this, navigate to the side menu and click on “Privacy Options”. Adjust the parameters to suit your preferences or select one of the pre-configured profiles under “Tor Presets/Privacy”.

For example, selecting the “Full Privacy” option activates all available privacy features. Once you’ve made your adjustments, simply click “Save” to apply the changes.

8. Configuring connections with Relays

From the side menu, click on “Relays”. On the next screen, you can easily add or remove the relays you want to connect to, tailoring the setup to your preferences.

Now let me know, isn’t it easy?!

Benefits of Using Amethyst and the Nostr Network

1. Privacy and Data Control

One of the greatest benefits of Amethyst is the control it provides over personal data.

Unlike traditional social networks, where user data is stored on centralized servers, Nostr distributes data across relays.

With Amethyst, users can choose which relays to use, increasing privacy and giving them greater control over where their information is stored.

2. Freedom of Expression and Reduced Censorship

Nostr’s decentralization makes content censorship extremely difficult, as there is no centralized server to control or regulate.

Amethyst users have the freedom to express their opinions and share information without fear of being blocked or censored. This attracts many advocates of freedom of expression and network neutrality.

3. Scalability and Fault Tolerance

The relay-based architecture model allows Nostr to be scalable and fault-tolerant. Even if one relay goes offline, users can connect to other relays and continue accessing the network. Amethyst facilitates this switching, ensuring a more stable and reliable experience in decentralized environments.

4. Advanced Encryption and Security Support

Nostr’s public key encryption protects message content and ensures that only the legitimate sender can sign and authenticate messages sent.

Amethyst leverages this security infrastructure transparently, providing users with a platform where they can communicate securely without fear of their messages being intercepted.

Comparison with Other Nostr Clients and Traditional Social Networks

When compared to other Nostr clients like Primal or Damus, Amethyst offers a solid experience but has some usability quirks.

For instance, configuring default Zap values is less intuitive in Amethyst. Instead of having a dedicated section in the sidebar, users must hold down the Zap button for the configuration option to appear.

Another area where Amethyst falls short compared to Damus is in handling private key generation and confirmation.

When creating an account, Damus emphasizes securely storing the private key, displaying a screen for users to confirm they have recorded the key on paper or another secure method before accessing the network. This process closely resembles how Bitcoin wallets generate user seeds.

In contrast, Amethyst creates the account directly, requiring users to access their profiles afterward to securely store their keys.

However, Amethyst represents a substantial improvement compared to traditional social networks. It provides users with greater control over their data and employs an architecture that fosters freedom of expression.

Unlike centralized platforms like Facebook or X (formerly Twitter), Amethyst, in combination with Nostr, removes intermediaries, reduces censorship, and enhances security. This structural difference has a profound effect on privacy, as Nostr lacks a single control point or entity capable of selling, manipulating, or exploiting users’ personal data.

Challenges and Limitations of Amethyst and Nostr

Despite their many advantages, Amethyst and Nostr face several challenges:

1. Learning Curve: For users unfamiliar with decentralized networks and encryption, navigating Nostr can present a steep learning curve, especially when accessing advanced features. While Amethyst offers a user-friendly interface, beginners may still struggle with concepts like public keys, relay configurations, and using the Tor network.
2. Dependence on Available Relays: The quality of the Amethyst experience relies heavily on the availability and reliability of relays. If many relays go offline or implement fees to cover operational costs, this could disrupt communication and message storage within the network.
3. “Lack” of Recommendation Algorithms: Amethyst and the Nostr protocol prioritize user control over data, intentionally omitting features like content recommendation algorithms and engagement analytics found in centralized platforms. For users accustomed to a “TikTok-style” experience, where content is algorithmically tailored to keep attention, Amethyst may feel “too manual” or monotonous, requiring a shift in expectations and mindset.

Final Thoughts

Amethyst marks a significant innovation in decentralized social networks, providing a platform where users have full control over their data and can communicate securely and privately.

With its user-friendly interface and robust security features, Amethyst enables users to fully harness the potential of Nostr, delivering an accessible and efficient experience.

Although it faces some technical and usability challenges, Amethyst represents a meaningful step toward freer and more secure online communication, where users retain ownership of their data.

In a time when privacy, censorship, and data control are at the forefront of conversations about the internet’s future, Amethyst and the Nostr protocol have the potential to redefine online interactions.

That’s all for now! I hope you found this article insightful. If you’re curious and want to explore Amethyst, give it a try and connect with us there.

Until next time, opt out!

The post Amethyst: Using Nostr on Android Smartphones appeared first on Area Bitcoin.

In this article, we’ll explain how Tails and the Electrum wallet work and provide a step-by-step guide on using them together.

Let’s get started!

What is Tails?

Tails (The Amnesic Incognito Live System) is a privacy-focused, Debian-based operating system designed to provide anonymity and security.

It runs directly from a USB stick or DVD, leaving no traces on the computer it’s used on. By default, Tails stores system data in the computer’s RAM, which is erased as soon as the computer is powered off (unless the user opts to save data in an encrypted partition—don’t worry, we’ll show you how to set this up later).

Another standout feature of Tails is its ability to route all internet traffic through the Tor network, offering users a high level of anonymity online.

What is Electrum?

Electrum is a lightweight, open-source Bitcoin wallet known for its security and reliability. It offers advanced features such as multi-signature transactions, hardware wallet integration, and decentralized transaction verification.

As a lightweight wallet, Electrum doesn’t require downloading the entire Bitcoin blockchain, making it fast and convenient to use, especially on resource-limited systems like Tails.

Why Combine Tails and Electrum?

Combining Tails and Electrum creates a powerful solution for enhanced security and privacy.

Tails safeguards user privacy by anonymizing identity and location through the Tor network, while Electrum offers a secure and reliable platform for managing bitcoins. Together, they enable anonymous financial transactions, keeping personal data and private keys safe from attackers or potential breaches.

Requirements for setting up Tails

In this tutorial, we’ll guide you through configuring Tails on Windows, following the official Tails website’s instructions.

To set up and use the Electrum wallet on Tails, you’ll need:

1. A USB drive with at least 8 GB of storage for Tails.
2. A Windows computer running Windows 7 or later.
3. A system with at least 2 GB of RAM and a 64-bit architecture (unsure if your machine meets these specs? Check here).
4. The latest version of Tails, which you can download from the official Tails website.
5. Optional: A phone or secondary device to follow this tutorial while setting up your computer. 🙂

Step-by-step Tails setup

1. Downloading and Installing Tails

As mentioned, the first step is to download Tails on the official Tails website and create a startup pendrive

1.1 Download Tails:

Visit the Tails website, navigate to the “Download Tails” section as shown in the screenshot below, and download the latest version of Tails.

1.1.1 (Optional) Verify the Tails image signature:

Verifying file signatures is important to ensure the downloaded file hasn’t been corrupted or maliciously modified during the download process.

Once verification is complete, you should see the following message.

1.2 Installation on USB Drive:

Now, you’ll need software to write the Tails image to your USB drive, such as Etcher.

After downloading Etcher, you can close your browser. Then, go to the Downloads folder (or the folder where you saved the Etcher app) and run the app.

Click the blue “Flash from file” button and select the Tails image you just downloaded (in our first step).

After selecting the image, we’ll now choose the device to write the image to (your USB drive).

Click the blue middle button “Select target” and choose your USB drive.

Finally, click the last blue button “Flash” to finish the process of writing Tails to the USB drive.

Now, just wait for the process to complete.

Success! You’ve now configured your USB drive with the Tails Operating System.

1.3 Booting Tails

With the flash drive connected to the computer, configure the system to boot from the USB.

On Windows, you can do this by opening the Start menu in the bottom bar, then holding down the Shift key, and clicking On/Off ▸ Restart.

Now, click on “Use a device” and select your pendrive with the tails image. If there is no option with “tails” in the name, choose the option that has “Removable Device“

Depending on the model of your computer, you may still need to access your system’s BIOS or boot menu to select the flash drive.

If all goes well, you will finally see the Tails selection screen.

Select the first option:

And that’s it, easy, right? But it’s not over yet!

On the next screen you will see the settings of your Tails. Now, click on “Start Tails“.

2. Initial Configuration of Tails

Once Tails starts, you will be presented with a welcome screen (similar to the previous one) where you can configure the language, keyboard layout, and other settings.

Preferably, do this after setting up the persistent storage on the device. Since Tails has an “amnesic” nature, it will “forget” all data not saved in persistent, encrypted storage (hence its magic and its great appeal for privacy purposes).

So, let’s set up the persistent storage in Tails:

2.1 Setting up the Persistent Storage

One of the key features of Tails is the ability to create persistent and encrypted storage. This allows you to securely save files and data between Tails sessions.

We will enable this feature to save the private keys of your Electrum wallet for future use.

In the main environment:

Click on “Applications”, then on “Persistent Storage”, and on the next screen, click “Continue”.

On the following screen, choose a strong password.

This step is crucial, as if someone gains physical access to your USB drive, they could access everything stored on your Tails, except for your Electrum wallet (as we will configure a password for it later).

Nevertheless, an ounce of prevention is worth a pound of cure. So, after ensuring you’ve chosen a strong password, click “Create Persistent Storage”.

On the next screen, activate the options exactly as shown in this tutorial. Therefore, only disable or enable what you deem necessary if you know what you’re doing.

In the “Personal Documents” section, keep the “Persistent folder” option enabled.

In the “System Settings” section, keep the “Welcome Screen” option enabled.

In the “Network” section, enable “Network Connections” (to save Wi-Fi passwords, for example).

In the “Applications” tab, enable the “Electrum Bitcoin Wallet” option (to save your Electrum wallet settings) and optionally enable the “GnuPG” option if you plan to verify GPG keys in the future (e.g., downloading Ian Coleman’s BIP39 seed generator and verifying the software’s integrity later).

Finally, in “Advanced Settings”, keep the “Additional Software” option enabled.

Done! Now just restart your computer, and your Tails will be 100% configured. This time, when logging in, remember to enter the password for your persistent storage.

To do this, enter the password for your persistent storage volume in “Persistent Storage” and click “Unlock Encryption”.

After a while, the settings for your persistent storage will be loaded.

When everything is ready, click “Start Tails”.

Next, we’ll finally configure our Bitcoin wallet in Electrum.

3. Setting up the Electrum Wallet

Electrum comes pre-installed on Tails, eliminating the need for additional downloads. Follow one of the three options below to open the Electrum app:

Go to Applications (top left corner of the screen) → Internet → Electrum Bitcoin Wallet.

Go to Activities → All Applications (nine dots in the bottom bar) → Search for Electrum Bitcoin Wallet.

Go to Activities → All Applications (9 dots in the bottom bar of the screen) → Search in the top bar for Electrum → Electrum Bitcoin Wallet

3.1 Choosing a Wallet Name:

When opening Electrum, you’ll be prompted to choose a wallet name. Let’s create a wallet named “area_bitcoin_wallet.”

Click “Next.”

3.2 Selecting Wallet Type:

On the next screen, you’ll have several options, including creating a wallet with two-factor authentication, importing Bitcoin addresses or private keys, or even setting up multi-signature wallets.

For this guide, select the standard wallet option: “Standard Wallet.”

3.3 Generating Wallet Seeds:

On the next screen, there are options to import a seed, use a master key from another wallet, use seeds from a connected hardware wallet, or generate a new seed.

In this case, we will generate a new seed through Electrum by selecting “Create a new seed”.

The 12 words of your wallet will be generated and displayed to you. Be sure to write them down carefully as they are your only key to accessing your bitcoins!

If you choose to also generate a “passphrase,” click on “Options” and check “Extend this seed with custom words”, then click “OK”.

Once done, a new screen will appear for you to choose the passphrase. After entering it, simply click “Next” again.

If you do not wish to generate a passphrase for your wallet, you will be redirected directly to the screen below, asking you to confirm the words of your seed.

However, if you entered a passphrase, remember to also type it at the end of your 12 words, or Electrum will not allow you to proceed to the next step.

3.4 Creating a Password to Encrypt the Wallet

Next, you will be asked to create a password to encrypt your wallet files.

This is an additional security measure. However, if you already consider your setup “secure enough,” you can skip this step (by clicking “Next” without entering a password).

That said, if you choose to create a password, preferably create a strong one and then click “Next”.

Congratulations! You now officially have a Bitcoin wallet set up with Tails + Electrum!

In the next section, we’ll demonstrate how to practically use the wallet we just created to send and receive bitcoins.

Excited?!

4. Practical Use of Electrum

Before we proceed, it is crucial to emphasize: Never, under any circumstances, connect this Tails machine to the internet while your wallet containing your seeds is open.

If it becomes necessary to connect to the internet with the wallet open — whether to update its balance or to send a transaction to the Bitcoin network — it is preferable to create another wallet containing only your extended public key to check your balance (watch-only mode), ideally connected to your Bitcoin Node using TOR for maximum privacy.

4.1 Creating a Watch-Only Wallet

To check the extended public key of your wallet, click on “Wallet” → “Information”.

Your extended public key will be displayed under “Master Public Key”. Copy it and import it into the device of your choice (for example, a Blue Wallet or even another Tails device).

In this tutorial, we’ll show that it is possible to use this setup on a single device. However, you must always ensure you disconnect from the internet before opening your wallet containing the seeds.

The recommendation to use the watch-only wallet on another device is a safer approach and ensures that “you protect yourself from yourself.”

With your extended public key in hand, create a new Electrum wallet by navigating to “File” → “New/Restore”.

Select a name for the wallet and click “Next”.

In this example, we’ll use the name “area_bitcoin_wallet_watch_only” to differentiate it from the primary wallet containing our seeds.

Select “Standard Wallet” and click “Next”.

On the next screen, instead of selecting “Create a new seed,” choose “Use a master key” and then click “Next”.

Paste your extended public key into the designated field and click “Next” again.

Note: If the wallet is being created on another Tails device, you can save this key in a text file and transfer it using a USB drive, for example.

On the following screen, you’ll be prompted to create a password specifically for this watch-only wallet.

Up to this point, you should have stored three passwords: the persistent storage password, your seeds, and a password for your Electrum wallet containing the seeds.

If you feel it necessary, you can create an additional password for this wallet, which will only track the balances of your addresses.

In this instance, we will not create a password for this wallet because this Tails device has a single purpose: managing bitcoins without accessing the internet, which minimizes the risk of malware infection.

Click “Next” without creating a password.

Before displaying the wallet, a warning will appear reminding you not to send funds to this wallet unless you own its seeds. Since we are indeed the owners of this wallet, click “OK.”

Now, you have two wallets:

• One that will sign your transactions, containing your seeds, and must never connect to the internet.
• One that will track the balances of your wallets and can receive funds without needing to open the other wallet containing your seeds.

Close your primary wallet and leave only your “watch-only wallet” open for the next steps in the tutorial.

4.2 Receiving Bitcoins in the Electrum Wallet

In your watch-only wallet, navigate to the “Addresses” section.

Select the Bitcoin address where you want to receive funds, right-click, and then click “Details” to display the details of that Bitcoin address.

Remember, the sequence of numbers and letters in “Address” is your Bitcoin address. You can either copy it and send it to the payer or generate a QR code for this address by clicking on the QR Code icon (as shown below).

Clicking the QR Code icon will display a window similar to the one shown below.

You can send this QR code to the payer or scan it using a device containing another wallet of yours if your goal is to transfer funds between your own wallets.

To update your balance, you’ll need to connect to the internet. Before doing so, ensure that your other wallet (the one containing your seeds) is closed, especially if it’s on the same Tails device.

After establishing an internet connection (via Ethernet or Wi-Fi), select “Connect to Tor automatically” and then click “Connect to Tor network.”

Once the message “Connection to Tor network successful” appears, you can close this window.

Your Electrum wallet should now display a blue circle in the bottom corner instead of a red one. This symbol indicates that Electrum is connected to the internet and also via Tor.

After some time (depending on the miner fee paid and Bitcoin network traffic), your transaction will appear in the “History” section, and your balance will appear in the bottom left corner next to “Balance.”

4.3 Sending Bitcoins Using the Electrum Wallet

To send funds to another Bitcoin wallet using Electrum, follow these steps:

1. Disconnect from the internet.
2. Create a PSBT (Partially Signed Bitcoin Transaction) in the watch-only wallet.
3. Load this PSBT into the wallet containing your seeds.
4. Sign the transaction.
5. Export the signed transaction as a TXN file.
6. Close the wallet containing your seeds (so Electrum encrypts it again).
7. Reconnect to the internet.
8. Broadcast this transaction using your watch-only wallet, ensuring your seeds remain completely secure.

In your watch-only wallet, ensure you’re disconnected from the internet and navigate to the “Send” section.

Note that the red circle in the bottom-right corner signals you’re offline.

In the “Pay to” field, paste the recipient’s Bitcoin address.

Use the “Description” field to include details about the payment (optional, e.g., to describe the reason for the transaction).

Specify the amount to be sent in the “Amount” field. To send the wallet’s entire balance, click “Max.”

As we are disconnected from the internet, we need to define the fee to be paid for the transaction manually, since it will not be possible to consult the blockchain and choose an appropriate amount directly in Electrum

For that, click on “Tools” → “Preferences” and select “Advanced Preview.”

Return to the “Send” tab and click “Pay.” You’ll be redirected to the following window:

Click on the arrow in the “ETA” button (bottom-left corner of the menu). After that, you’ll see 3 options,  Select “Static.”

On another device, access a Bitcoin block explorer (e.g., mempool.space) to check current network fees.

Based on these rates, configure the fee to be paid according to your convenience. If you want to pay less, put a lower fee. If you want the transaction to be processed quickly, pay a higher fee, and so on.

After setting the fee, a final screen will appear before exporting the PSBT of this transaction.

On the bottom left corner click “Export” → “Export to File.”

Choose where to save this file and click “Save.” Once done, you’ll see the following confirmation message:

Now, while still disconnected from the internet, switch to the wallet containing your seeds. To do this, go to the top menu and click on “File” → “Recently Open” → “your_wallet_name.”

Once done, you will be prompted to enter your password. After that, in the top menu, go to “Tools” → “Load Transaction” → “From File.”

Select the .psbt file you exported earlier.

After doing so, you will see a screen very similar to the one in your watch-only wallet, except this time the “Sign” button will be enabled.

Click on this “Sign” button.

You will be prompted to enter your Electrum wallet password once again. After entering it, click “OK.”

Next, export this signed transaction. Click once more on “Export” → “Export to file.”

Now, choose where to save this file and click “Save.” 

We’re almost there! Now we just need to broadcast this transaction to the Bitcoin network. To do this, close the wallet (the one containing your seeds), reconnect to the internet, and open your watch-only wallet.

Click on “Tools” → “Load Transaction” → “From File.”

Select the .txn file, which is your signed transaction.

On the next screen, click “Broadcast.”

A confirmation message will appear with the ID of your transaction.

Done! Your transaction has now been signed, and your bitcoins have been sent to the destination address.

Check the “History” section to see your latest transactions, including this most recent transfer, which will be confirmed after some time.

Tails + Electrum Recommendations

While the Tails and Electrum combination offers excellent security and anonymity, following these recommendations will help you maximize their benefits:

1. Keep Tails Always Updated: Regularly update Tails to ensure you have the latest security patches and bug fixes. This is critical for maintaining a secure environment.
2. Use the Tails + Electrum Environment Exclusively for Bitcoin Transactions: Avoid using the Tor browser within this setup for general browsing or accessing the dark web. Doing so may expose you to additional risks. To minimize vulnerabilities, dedicate this environment solely to sending and receiving bitcoins.
3. Avoid Unnecessary Plugins in Electrum: Third-party plugins can introduce security risks. Keep your Electrum wallet setup simple and free from unnecessary add-ons.
4. Always Use Secure Networks: Avoid public or unsecured Wi-Fi. Although Tails routes traffic through Tor, untrusted networks can still pose risks, especially if someone is monitoring local traffic.
5. Consider Using a Watch-Only Wallet on Another Device: To minimize the risk of losing your bitcoins due to human error, use a watch-only wallet on a separate device to monitor balances. Keep the device containing your seed phrase offline at all times, ensuring maximum security.
6. Use a Bitcoin Node When Possible: By default, Electrum connects to a randomly selected Bitcoin node. To enhance privacy and prevent exposing your extended public key, use your own Bitcoin node, preferably one running on Tor. Options like Umbrel or Raspblitz are excellent choices for setting up a personal node.

Conclusion

The combination of Tails and Electrum provides a powerful solution for those seeking enhanced security and privacy in Bitcoin transactions. With Tails protecting your operating environment and Electrum securely managing your Bitcoin, this setup offers a significant level of anonymity and defense against potential attackers and surveillance.

That said, this setup does come with some challenges. It requires careful attention and a certain level of technical knowledge to create bootable operating system images on removable media, which may pose difficulties for non-technical users.

I hope this article has helped you better understand the Tails + Electrum combination and eased any hesitations about using it.

Thanks for reading, and take control of your privacy—opt out!

The post Tails + Electrum Wallet: A Complete Guide for You appeared first on Area Bitcoin.

Curious, isn’t it?

It’s also worth mentioning that in recent years, the Central Bank introduced the Pix payment system, which quickly gained widespread popularity. Now, with Drex, a new initiative is on the horizon.

But what sets Pix and Drex apart? Both share an “X” at the end—could the Central Bank have drawn inspiration from Elon Musk and his fascination with the letter “X”?

In this article, we’ll break down what DREX is, how it works, and, most importantly, the hidden risks this new digital currency might bring to your life.

Let’s dive in!

What is DREX?

DREX is the digital version of the real, developed by the Central Bank of Brazil to enable secure and fast financial transactions, serving as the official currency in digital format. In essence, it represents the evolution of the real into the digital age.

Unlike Pix, which is merely a payment method, DREX represents the currency itself, functioning as a Central Bank Digital Currency (CBDC).

While Pix provides the infrastructure banks use to facilitate payments, DREX will act as the digital currency powering these transactions in the future, even supporting Pix transfers using DREX.

The key distinction lies in its capabilities—unlike Pix, DREX allows for asset tokenization and provides a higher degree of control. It was developed by a working group formed in August 2020, which included Fenasbac (a non-profit organization representing employees of the Central Bank of Brazil) and other financial institutions.

How is DREX Being Built?

DREX, the digital version of the real, is being developed using advanced technologies like blockchain and Distributed Ledger Technology (DLT) to ensure security, efficiency, and traceability.

Here are the key technical components shaping the creation of Drex:

1. Distributed Ledger Technology (DLT) Architecture

DREX is built on a permissioned blockchain architecture, meaning only authorized entities, such as participating financial institutions and the Central Bank of Brazil (Bacen), can operate nodes and validate transactions. This provides system security while maintaining centralized control.

2. Tokens Representing Fiat Currency

The DREX currency operates with digital tokens representing Brazil’s fiat currency (the real). These tokens will be issued by the Central Bank and distributed to authorized financial and payment institutions.

These institutions, in turn, will make the tokens available to end users (individuals and companies), who can use them for payments, transfers, and other transactions.

The Central Bank is the sole entity authorized to issue DREX tokens, which are backed by corresponding fiat reserves, ensuring parity with physical reais.

3. Interoperability with the Traditional Financial System

DREX is designed to be interoperable with Brazil’s traditional banking system and instant payment system, Pix.

This integration aims to facilitate a seamless transition between physical currency, Pix payments, and Drex, without disruption for the end user.

4. Smart Contracts and Programmability

DREX’s infrastructure will allow the creation and execution of smart contracts. This means institutions and users can program automatic conditions for payments, settlements, and other financial functions.

5. Security and Encryption

All DREX transactions will be secured with end-to-end encryption, ensuring that information is accessible only to authorized parties and that data remains protected during transmission.

6. Modularity and Flexibility

DREX is designed with a modular architecture that allows for the integration of new functionalities and updates without disrupting the system’s operation.

This approach ensures the currency can adapt to new regulatory requirements.

7. Compliance and KYC (Know Your Customer)

DREX will have built-in compliance mechanisms, enabling the Central Bank and financial institutions to monitor transaction legitimacy, including KYC checks and anti-money laundering (AML) measures.

8. Governance and Centralized Control

The entire DREX system will be controlled and supervised by the Central Bank of Brazil. This means that all operational rules, issuances, transactions, and audits will fall under Bacen’s (The Central Bank of Brazil)  governance, ensuring alignment with the country’s monetary policies.

The Hidden Risks of DREX

DREX is designed to operate as a distributed ledger system (DLT), enabling banks to convert customer deposit balances into tokens, facilitating access to new digital and “smart” financial services.

This technology allows for transactions involving digital assets and the use of smart contracts, but banks will still centralize operations through DREX.

This setup effectively grants the Central Bank even greater control over the financial system. And this isn’t speculation—the director of the BIS (Bank for International Settlements), often referred to as the central bank for central banks, has openly stated that the primary goal of CBDCs is to provide absolute power to central banks and governments over financial systems.

While DREX is marketed with enticing terms like financial inclusion, democratized access, innovation, and convenience, the underlying cost is substantial. By embracing it, we risk surrendering our personal data, the fruits of our labor, and even generational wealth to political and bureaucratic oversight.

Every CBDC, including DREX, carries an inherent risk: serving as a tool for mass surveillance. For authoritarian regimes, it represents the ultimate mechanism—total control over individuals’ finances and, by extension, their lives.

Therefore, although portrayed as a step forward, DREX or the digital real brings no significant advantages for the general population compared to existing systems. Instead, it amplifies the drawbacks of the current financial structure:

• currency devaluation due to perpetual inflation,
• political manipulation,
• creation of money without backing,
• and forced usage without the option to independently audit the Central Bank or commercial banks.

This issue isn’t confined to Brazil. DREX is part of a global initiative aimed at increasing financial control over populations, ultimately benefiting those in positions of power.

And this isn’t just a claim. Similar concerns are documented in materials discussing the digital euro.

What is the true goal of DREX?

The primary goal behind CBDCs, such as DREX, is to enhance control over monetary policies, including the ability to implement negative interest rates.

In practical terms, this means individuals would have to pay to lend money to the government through public bonds, effectively allowing the state to extract even more resources from its citizens.

In addition, CBDCs also enable practices like “helicopter money,” where governments distribute funds indiscriminately, regardless of the economic consequences. This can severely erode purchasing power by fueling uncontrolled inflation.

This process increases the so-called “seigniorage” for the state, which is the profit central banks earn by printing money. As a result, the government finances its own policies and investments by stealing value from the currency everyone is forced to use.

These goals are not speculative—they are backed by documented studies, such as those commissioned by the European Central Bank, which outline how CBDCs can be used to manipulate economies to benefit governments and central banks.

This paper highlights that CBDCs in general—not just DREX in Brazil—will likely have negative consequences for savers, eroding their purchasing power to fund populist policies. This mechanism allows governments to reduce their debts, even in the face of irresponsible spending, as the cost of money printing is passed onto the population.

In other words, we’re the ones footing the bill. Forced to use the currency, we watch as our purchasing power steadily declines.

But that’s not even the worst part.

With Drex, “printing money” becomes even simpler. Creating more tokens is as easy as pressing a button, requiring no effort or transparency. The real danger, however, lies in the mass surveillance this digital currency could enable.

With Drex, the government will have the ability to monitor all your spending. Every transaction you make will be under the watchful eye of the Central Bank. Additionally, tax collection could be carried out automatically, eliminating any possibility of individual control.

What’s even more alarming is a specific code that makes it easier to confiscate funds directly from users’ accounts.

A developer demonstrated this on GitHub, revealing how DREX’s (CBDCs) architecture allows for funds to be blocked or seized far more easily and efficiently than in the traditional banking system.

What are the differences between DREX (CBDCs) and Bitcoin?

The Digital Real is often promoted as the “Bitcoin of Brazil,” but in reality, it is much closer to a “shitcoin.”

Unlike Bitcoin, which tends to appreciate over time due to its scarcity and decentralization, DREX is entirely centralized, gives more power to politicians than to citizens, and even carries the risk of a rug pull akin to the confiscation that occurred during Brazil’s Collor Plan in the 1990s.

But that’s just the beginning. Let’s break down the key differences between DREX and Bitcoin:

1. Centralization vs. Decentralization

• DREX: Drex is a centralized digital currency issued and controlled by the Central Bank of Brazil. All rules for its operation, issuance, and monitoring are determined by this entity, meaning Drex follows Brazil’s monetary and fiscal policies. It is managed on a permissioned blockchain, where only authorized institutions can operate nodes and validate transactions.
• Bitcoin: Bitcoin is a decentralized currency, not controlled by any institution or government. Its issuance and transactions are governed by an open-source protocol and validated by a distributed network of nodes (computers) participating voluntarily in the mining and block validation process. Additionally, Bitcoin operates on a public, open blockchain that requires no third-party permission for transactions.

2. Issuance and Control

• DREXr: Drex is exclusively issued by the Central Bank of Brazil. The quantity of Drex in circulation is determined by the country’s monetary policy, and the Central Bank has full control over the digital currency supply. It can implement economic policies, such as adjusting interest rates or applying financial restrictions.
• Bitcoin: Bitcoin’s issuance is predetermined by its protocol and follows a fixed, transparent monetary policy, with a maximum total of 21 million bitcoins to be mined over time. Neither governments nor banks can alter this issuance policy, granting Bitcoin the properties of digital scarcity.

3. Monetary Policy

• DREX: It is subject to Brazil’s monetary policy, and the Central Bank can implement variable interest rates, control money supply, and take economic intervention measures. Thus, Drex is susceptible to governmental decisions and economic events, such as crises or inflation.
• Bitcoin: It is not tied to any national monetary policy. Its supply is fixed and deflationary, as the maximum number of bitcoins is capped. Consequently, Bitcoin is often considered a store of value or “digital gold,” protecting users from government inflationary policies.

4. Transparency and Auditability

• DREX: Although DREX uses a permissioned blockchain, control over transactions and network access is restricted to authorized institutions. This means the general public cannot directly audit transactions, and system transparency depends on the rules and policies established by the Central Bank.
• Bitcoin: Bitcoin’s blockchain is public and transparent. Anyone can audit transactions directly on the blockchain, and all Bitcoin transfers are visible to any network participant.

5. Privacy

• DREX: It offers little to no financial privacy, as transactions can be monitored and traced by the Central Bank and other authorized institutions. This enables the government to have full control and visibility over financial flows, which can be used to monitor illegal activities but also raises concerns about mass surveillance and financial privacy.
• Bitcoin: Bitcoin offers a certain level of privacy, though it is not completely anonymous since transactions on the blockchain are public. However, tools like mixers and technologies such as stealth payments and second-layer networks (e.g., the Lightning Network) can improve transaction privacy.

6. Technology and Network

• DREX: It is being built on a permissioned blockchain, meaning only authorized participants, such as banks and financial institutions, can operate nodes and validate transactions. This ensures greater system control but limits openness and accessibility.
• Bitcoin: It operates on a public, permissionless blockchain, meaning anyone in the world with internet access can participate in the network — as a miner, node operator, or simply a user. No authorization is needed to validate transactions or join the ecosystem.

7. Usability and Scope

• DREX: It is designed for exclusive use within Brazil and adheres to the country’s economic regulations. Its main purpose is to facilitate digital transactions within Brazil’s financial system, promoting greater efficiency in payments and bank transfers.
• Bitcoin: It is a global, borderless currency. It can be used by anyone, anywhere in the world, for financial transactions without relying on banks or governments. Moreover, Bitcoin is widely used as a store of value and a means for international fund transfers.

Final Considerations

Looking at history, the Brazilian real has already lost 86% of its purchasing power over its 28 years of existence, and DREX does nothing to change this trajectory. The Central Bank will continue creating money out of thin air, as it always has.

In fact, the introduction of a new digital currency only reinforces this inflationary practice.

True digital money is Bitcoin. It provides individual sovereignty, resists censorship, and cannot be manipulated by governments or central banks.

The Digital Real and other CBDCs, by contrast, is a trap designed to keep you confined within the fiat system. Bitcoin is your escape.

Until next time—opt out!

The post DREX: The Risks of Brazil’s Central Bank Digital Currency (CBDC) appeared first on Area Bitcoin.

Traditionally, operating a “full node” required advanced technical expertise and complex hardware setups. Umbrel, however, has revolutionized this process by making it significantly more accessible. It enables anyone to run their own Bitcoin node with ease and efficiency, without compromising on features compared to established solutions like Raspiblitz and MyNode.

With its intuitive graphical interface and the flexibility of a decentralized “App Store,” Umbrel has become an ideal starting point for those looking to delve deeper into Bitcoin and other decentralized applications, such as Nostr, as we’ll explore below.

Therefore, in this article, we will introduce Umbrel and highlight its key features.

What is a Bitcoin node?

Before diving into Umbrel, it’s important to understand what it means to run a Bitcoin node and why it’s crucial to the network.

In the Bitcoin network, a node is a computer that runs the Bitcoin protocol and maintains a complete copy of the blockchain—essentially the entire transaction history of the network.

Nodes are responsible for verifying the validity of transactions and blocks broadcast on the network. This ensures that all participants share a consistent view of the current state of the blockchain. By performing these verifications, nodes play a vital role in maintaining the security and decentralization of the Bitcoin network, helping to prevent fraud, such as double-spending.

In summary, the main functions of a Bitcoin node are to:

1. Validate Transactions: A node ensures the validity of each transaction by verifying that only legitimate bitcoins are sent and that the sender has sufficient balance.
2. Distribute Information: Nodes share data with other nodes, forming a decentralized network of trust that guarantees transaction verification across the entire network.
3. Store the Blockchain: Each node maintains a complete copy of Bitcoin’s decentralized ledger, known as the blockchain. This makes it nearly impossible to “cheat or take down the network” without controlling more than half of the nodes (a 50%+1 attack). As the number of Bitcoin nodes continues to grow year after year, the ecosystem becomes increasingly resilient and secure over time.

Do you want to know more about nodes? Then check out our article: Understand what Bitcoin and Lightning nodes are.

What is Umbrel?

Umbrel is a software solution designed to make running a Bitcoin node accessible to everyone. It was specifically developed to simplify the installation and management process, providing a user-friendly graphical interface and a platform for decentralized applications.

Key features of the Umbrel node include:

1. User-friendly interface: Umbrel’s graphical interface is intuitive and easy to navigate, designed for everyday users, allowing them to set up and manage the node without complex command lines.
2. Lightning Network support: Umbrel integrates with the Lightning Network, a Bitcoin second-layer solution enabling fast and low-cost transactions, ideal for micropayments.
3. Decentralized App Store: Umbrel also offers an integrated solution similar to an “App Store,” where users can install and manage various decentralized apps, such as Lightning wallets, privacy tools, network monitors, media servers, and even run a private Nostr relay.
4. Privacy and sovereignty: One of Umbrel’s goals is to increase user privacy and control over their data, reducing dependence on big tech applications that often do not prioritize user privacy.

Umbrel stands out as an accessible and open-source solution, with developers worldwide continuously working to improve the platform and introduce new features, ensuring its ongoing evolution.

In recent years, the Umbrel team has rebranded the software not just as a Bitcoin node solution but also as a “home server” platform.

It now offers several integrated “cloud solutions,” including Nextcloud for managing media files, the ability to run AI models locally without exposing your data to third parties, and the option to host a private Nostr relay directly on your Umbrel. This enhances privacy and control over the notes shared via your Nostr account, among many other features.

How does the Umbrel Bitcoin Node work?

Umbrel simplifies the operation of a Bitcoin node, providing tools that help users configure, manage, and expand their nodes flexibly to suit their needs.

Let’s break down the installation process and key functionalities of Umbrel.

1. Hardware Preparation

To get started, you need a compatible device.

Umbrel is designed to run on low-cost devices like the Raspberry Pi, making it accessible to many. However, it can also run on personal computers (such as an old, unused PC) or more robust servers for specific purposes.

For this tutorial, we will use a Raspberry Pi 5 model.

In addition to the Raspberry Pi, you’ll need the following:

Storage for the operating system

A memory device of at least 32GB for the operating system, such as a microSD card for occasional node use or NVMe, SSD, or HDD for continuous node operation.

The argument behind this recommendation is that an SD card has fewer writing cycles and a shorter average life for continuous use. Therefore, if you intend to run your node 24/7 (every day and all day), it is worth considering this recommendation.

Memory to store a copy of the Blockchain (SSD of at least 1TB)

Currently, the blockchain exceeds 600GB of data and is constantly growing as the network receives more transactions.

Therefore, reserve at least one 1TB SSD to handle this volume of data.

Power supply (preferably official) and cooling system:

These components ensure the device’s stability.

A ‘pirate’ or ‘improvised’ power supply might not provide the necessary energy for the device. Therefore, if possible, opt for the official Raspberry Pi power supply.

Regarding cooling, some cases (enclosures) for the Raspberry Pi come with integrated cooling solutions, such as a fan and a thermal heatsink to attach to the processor.

If possible, consider acquiring these solutions, as they are specifically designed to meet the Raspberry Pi’s needs.

Raspberry Pi

In this tutorial, we will use the most current model, the Raspberry Pi 5.

If you choose to use the Raspberry Pi 4 model, note that it will not support external memory for the operating system (since it does not yet support this feature). Instead, the operating system must be written to an SD card.

(Optional) Raspberry Pi Case

As mentioned earlier, some cases include built-in cooling solutions, sparing you from future issues such as component overheating. Plus, they make your Raspberry Pi look even better! 🙂

2. Installation and Setup of Umbrel OS

Once the hardware is prepared, the next step is installing Umbrel OS.

This process involves writing the system onto a memory device (e.g., a microSD card) and following the guided setup steps.

When the device is powered on, the user is taken through an installation interface that facilitates the initial setup, including creating a password and selecting synchronization options.

Start by visiting the official Umbrel repository on GitHub.

Navigate to the “Installing umbrelOS” section and select the appropriate option. For this tutorial, we’ll choose “Install umbrelOS on a Raspberry Pi 5.”

On the next screen, choose “2. [Not recommended] Installing umbrelOS on a microSD card and using an external SSD for storage.”

You will see the following warning:

Despite the recommendation against it, as mentioned earlier, this Bitcoin Node will not be connected 100% of the time.

If you opt for the first option (not using a microSD card), the steps are nearly identical, except that you’ll need to flash UmbrelOS onto an NVMe drive or an HDD/SSD.

Under “Steps,” locate Step 1: Download the latest umbrelOS image for Raspberry Pi 5 and click “umbrelOS image” to start the download.

For this next step, you’ll need to flash the image onto a memory device, such as an SD card (as in this tutorial) or another type of storage. Umbrel developers recommend using Balena Etcher for this process.

If you haven’t downloaded Balena Etcher yet, go to ‘Step 2: Download Balena Etcher to your computer. It is needed to flash the UmbrelOS image you downloaded onto your microSD card.’ Click ‘Balena Etcher’ to be redirected to the site.

Now click “Download Etcher” and select the version appropriate for your operating system.

In our case, we chose Windows.

After downloading it, close your browser. Then, go to your downloads folder (or wherever you saved the Etcher application) and run it.

Before clicking ‘Flash from file,’ note that the previously downloaded file is compressed. First, extract the image it contains.

To do this, right-click the file “umbrelos-pi5.img” → “Extract All.”

Now, return to Balena Etcher and click ‘Flash from file.’

You will see both the compressed file and a folder named ‘umbrelos-pi5.img.’ Open this folder and select the ‘umbrelos-pi5’ image.

On the next screen, click “Select target” and choose your device.

Finally, click “Flash” and wait for the flashing process to complete.

Once it’s done, safely remove the device and insert it into your Raspberry Pi (or the device of your choice).

3. Initial Setup of the Umbrel Node

Once the Umbrel image is flashed, insert the device into your Raspberry Pi, then connect it to the internet and power.

After a few minutes, access the address http://umbrel.local from any device connected to the same network to remotely configure your Umbrel Node.

Upon accessing the site, you’ll see a screen similar to the one below:

Click ‘Start’ and create an account with a username and password. Remember, these will be your access credentials for Umbrel. In our example, we created an account named ‘Area Bitcoin Node.’

A final message will confirm that the Umbrel setup is complete.

Next, you can choose which apps to run on your Umbrel Node. For this setup, we’ll run a Bitcoin Node. In the section titled ‘For the Bitcoiner,’ select the option ‘Bitcoin Node.’

On the next screen, click ‘Install’ (button at the top-right corner). Wait for the installation process to finish, then click ‘Open.’

A new tab will open in your browser, providing a dedicated interface to monitor your Bitcoin Node.

You’re almost there! Your Bitcoin Node is nearly configured. Now, all that’s left is to wait for the synchronization process with the Blockchain to complete.

4. Synchronizing with the Blockchain

As mentioned earlier, the Bitcoin node needs to download a complete copy of the network’s transaction history to independently verify new transactions.

The initial synchronization process can take anywhere from a few hours to several days, depending on your internet speed and the device you are using. This duration may also vary based on the Raspberry Pi model (newer or older) or the performance of your computer hardware (faster or slower).

During synchronization, Umbrel validates all transactions and blocks, ensuring the integrity of the blockchain. This process guarantees that your node is fully up-to-date and ready to autonomously verify new transactions.

Once the node has finished synchronizing with the blockchain, a screen similar to the one below will appear.

5. Connecting Your Wallet to the Bitcoin Node

To connect your Bitcoin wallet, such as a BitBox02, to your Bitcoin Node, first ensure that synchronization is complete. Then, click on “+ Connect.”

After doing so, a window displaying your Bitcoin Node’s information will open. Simply input this information into the wallet of your choice.

That’s it! From now on, all transactions conducted through your wallet will pass through your node before being sent to the Bitcoin network, providing an added layer of privacy to your transactions.

Simple, right?!

6. Managing and Maintaining the Umbrel Node

The Umbrel platform provides a variety of tools to help you manage your node efficiently.

Through the user interface, you can monitor the synchronization status, check RAM usage, storage usage, and device temperature, manage transactions, open channels on the Lightning Network, and customize various node settings.

To check the resource usage of your Umbrel Node, navigate to the main menu and click on the designated icon.

After clicking, a screen displaying your device’s usage statistics will appear.

In addition, to check the temperature of the device, click on the icon below.

The settings section will open. As you can see, in the left sidebar you will have a summary of the same statistics displayed previously. However, the last component contains the current temperature of your device (in Fahrenheit).

If you prefer to view the temperature in Celsius, simply click on the “ºC” icon.

Oh, it is also important to note that node maintenance also includes regular software updates, which are performed automatically, saving you time and effort.

In addition to these precautions, it is also recommended to periodically check the memory usage of the device and, if necessary, replace it with one of higher capacity.

7. Installing Applications from the Umbrel “App Store”

The decentralized App Store in Umbrel allows users to customize and expand their node’s functionalities beyond a standard Bitcoin node by installing various applications that offer diverse features and services.

Some of the available applications include:

• Bitcoin Lightning Wallets: Apps to manage and send Bitcoin transactions both on-chain and via the Lightning Network.
• Blockchain Explorers: Tools that enable monitoring of the Bitcoin network and viewing transactions and blocks without exposing your IP address or wallet addresses to third-party chain analysis services.
• Privacy Applications: Tools designed to enhance the user’s privacy and data security
• AI Models Similar to ChatGPT: Support for applications like LlamaGPT and ChatBot UI allows users to run large language models (LLMs) similar to ChatGPT locally on their Umbrel, ensuring complete privacy.
• Media and Storage Servers: Apps like Nextcloud transform your node into a media or file storage server.
• Private Nostr Relay: Umbrel offers an application for running a private Nostr relay with the same ease as running a Bitcoin node. This is ideal for those seeking enhanced privacy when using Nostr but previously faced technical challenges with setting up a Bitcoin node.

With these features, the Umbrel becomes a versatile home lab or personal server. Users can add new functionalities and tailor their experience to fit their specific needs.

Advantages of using Umbrel

Now that we’ve explored what Umbrel is, how it works, and how to install it, let’s look at some of its key advantages:

1. Complete Control and Privacy: Running your own node eliminates the need to trust third parties for transaction verification, enhancing privacy and giving users full control over their operations.
2. Contribution to Bitcoin Network Decentralization: Each individual node strengthens the Bitcoin network, making it more resilient to censorship and attacks.
3. Flexibility and Expansion with Applications: With the integrated “App Store,” users can expand their node’s functionalities beyond just a Bitcoin node. It can be transformed into anything you need — a file server (for movies, music, personal documents, etc.), a private Nostr relay, or even a local AI model.
4. Cost Efficiency: Running Umbrel on a Raspberry Pi makes operating a Bitcoin node financially accessible and energy-efficient.

Challenges and limitations of the Umbrel Bitcoin Node

While Umbrel has many advantages, it also comes with some challenges and limitations:

1. Dependence on Suitable Hardware: Even though a Raspberry Pi is low-cost, a high-capacity SSD is still required to store the blockchain, along with an appropriate power supply and cooling system.
2. Initial Learning Curve: New users in the Bitcoin ecosystem may face difficulties configuring and operating the node, especially during the initial blockchain synchronization and setting up the OS on a microSD card or SSD/HD.
3. Maintenance Requirements: Although Umbrel simplifies node management, periodic updates and occasional monitoring are still necessary to ensure system security and efficiency.
4. Lengthy Synchronization Time: The initial blockchain synchronization can take weeks, depending on your internet speed and the device used. This can be frustrating and requires patience until the node is fully functional and ready for use.
5. Import Costs (Specific to Brazil): For Brazilian users, import taxes on purchases over $100 (USD) can be significant. While the Raspberry Pi 5 board costs approximately $92, kits including the case and power supply can exceed this threshold, potentially doubling the total cost. Be mindful of these additional expenses!

Comparison with other Bitcoin Node solutions

When compared to other Bitcoin node solutions, Umbrel stands out for its simplicity and accessibility. While many alternatives require advanced technical knowledge and the use of command-line tools, Umbrel offers a graphical interface and the flexibility to expand its functionality through various applications.

Some alternatives to Umbrel include:

• MyNode: Similar to Umbrel in several aspects, MyNode offers a user-friendly interface and compatibility with the Lightning Network. However, it lacks the wide variety of applications available in Umbrel. Additionally, some features are behind a paywall, which may be a drawback for certain users.
• RaspiBlitz: Designed for technically skilled users, RaspiBlitz has a steeper learning curve. This solution is focused exclusively on Bitcoin and Lightning Network, without the broader peripheral features — sometimes seen as distractions — that Umbrel offers.

Final Considerations

Umbrel stands out for its user-friendly approach compared to other Bitcoin node solutions.

With an interface similar to that of iOS devices, even beginners and non-technical users can easily configure and operate this Bitcoin node solution.

However, for users who value simplicity and minimalism, Umbrel’s expansion into other areas, such as serving as a personal server, may cause some discomfort, as it can offer excessive features that might go unused and occupy valuable memory space — especially on compact devices like the Raspberry Pi.

I hope this article has inspired you to explore Umbrel as a Bitcoin node solution.

Don’t forget to share this with your friends. Until next time, and opt out!

The post What is Umbrel and how does it work? appeared first on Area Bitcoin.

These innovations are often built on Bitcoin’s core protocol, introducing additional layers of functionality or addressing challenges that Bitcoin alone cannot directly resolve.

For instance, the Lightning Network enables faster and more affordable transactions by moving most activity off Bitcoin’s primary blockchain.

Similarly, sidechains like the Liquid Network provide features such as confidential transactions and tokenized assets.

Protocols like RGB are being developed to facilitate smart contract creation and digital asset issuance on Bitcoin without compromising the security or decentralization of the main blockchain. These advancements highlight the evolving nature of the Bitcoin ecosystem as it adapts to new needs and market demands.

In this article, we’ll explore the RGB protocol in more detail.

Shall we get started?

What is the RGB protocol?

RGB is an open-source set of protocols built on the Bitcoin blockchain, designed to enable the creation and execution of confidential and secure smart contracts.

In simple terms, the RGB protocol is a technology that facilitates the creation and management of smart contracts and tokenized assets with privacy and scalability.

Unlike systems that rely on sidechains or additional layers, RGB uses client-side validation. This means contract information and states are managed off-chain, while the Bitcoin blockchain is used solely to record commitments. This approach ensures the blockchain remains efficient and secure, without being burdened by operational details.

RGB, which stands for “Really Good Bitcoin,” is a groundbreaking open-source protocol that brings smart contract functionality to the Bitcoin network.

Who developed the RGB Protocol?

The RGB protocol was initially proposed between 2015 and 2016 by a group of developers and Bitcoin enthusiasts, most notably Jacob Mazukov and Giacomo Zucco, a prominent Bitcoin advocate and expert in cryptography and privacy.

Giacomo Zucco played a key role in shaping the RGB concept and promoting the idea of using the Bitcoin blockchain as a commitment layer for smart contracts and tokenized assets. By keeping contract data off the blockchain, this approach ensures both privacy and scalability.

In addition to Zucco, several other developers in the Bitcoin community contributed to the development of RGB. Among them is Peter Todd, a cryptographer and developer who has been involved in numerous technical aspects of Bitcoin. Their combined efforts, along with input from other key figures, have been instrumental in advancing the protocol and implementing its features.

Furthermore, the team behind RGB continues to work on improving and expanding the protocol, aiming to make it an even more powerful tool for enabling smart contracts and tokenized assets within the Bitcoin ecosystem.

RGB protocol use cases

The RGB protocol is designed as a flexible solution, offering various applications across different domains. Here are its primary use cases:

1. Issuance and Management of Digital Assets (Tokens)

• Stablecoins: Issuance of fiat-backed stablecoins, allowing for transactions and value storage in the Bitcoin environment without the typical volatility of cryptocurrencies.
• Physical Asset Representation: Creation of tokens representing physical assets like gold, real estate, or commodities, allowing these assets to be traded digitally.
• Stocks and Bonds: Issuance and management of tokenized stocks, bonds, or other financial instruments, enabling the creation of more efficient and accessible capital markets.

2. Complex Smart Contracts

• Futures Contracts: Enable futures contracts on tokenized assets, such as bitcoins, commodities, or other tokens, where parties can agree to buy or sell an asset at a future date at a preset price.
• Options Contracts: Create options contracts, allowing investors to buy or sell the right to acquire an asset at a specific price within a defined period.
• Loan Contracts: Implement smart contracts for loans, where tokenized assets can be used as collateral, and payment terms and interest rates are automatically managed.

3. Governance Systems and DAOs

• Voting Rights Tokenization: Create tokens representing voting rights in decentralized organizations or companies, enabling transparent and auditable governance.
• DAOs (Decentralized Autonomous Organizations): Manage DAOs using smart contracts on the RGB protocol, allowing the organization’s rules and decisions to be executed automatically and decentralized.

4. Certification and Identity

• Document Certification: Issue digital certificates that can be verified and stored on the blockchain, ensuring the authenticity and integrity of diplomas, patents, or other official documents.
• Digital Identity: Create digital identity systems where credentials are stored and verified using RGB’s unique seal technology, ensuring privacy and data security.

5. Decentralized Finance (DeFi)

• Lending and Savings Platforms: Implement DeFi platforms offering loans, savings, and other financial services directly on Bitcoin infrastructure, utilizing tokenized assets and smart contracts on the RGB protocol.
• Liquidity Pools and Swaps: Create liquidity pools and decentralized swap platforms for RGB tokens, allowing for efficient liquidity and trading of tokenized assets.

6. Payment Systems

• Private Payments: Use tokens issued on the RGB protocol for enhanced privacy payments, as transaction details and contract states are not visible on the Bitcoin blockchain.
• Integration with Lightning Network: RGB can be combined with the Lightning Network for instant and scalable payments, using tokens issued on the protocol.

7. Art and Digital Collectibles Markets (NFTs)

• NFT Creation and Trading: Issue NFTs (non-fungible tokens) on the RGB protocol to represent artworks, collectibles, or other unique digital items, allowing these assets to be traded in a decentralized manner.
• Authenticity Verification: Use the RGB protocol to create authenticity certificates for digital or physical art, ensuring provenance and originality can be reliably verified.

8. Crowdfunding and ICO Platforms

• Decentralized Crowdfunding: Implement crowdfunding platforms where funds are managed by smart contracts, ensuring that resources are released as project goals are met.
• ICOs and STOs: Facilitate token issuance for Initial Coin Offerings (ICOs) or Security Token Offerings (STOs) securely and regulated, using the ‘Really Good Bitcoin’ infrastructure.

9. Supply Chain Systems

• Product Traceability: Tokenize products throughout the supply chain, allowing each stage of production and distribution to be tracked and verified immutably.
• Origin Certification: Issue digital certificates attesting to the origin and authenticity of products, such as organic foods, precious metals, or pharmaceuticals.

10. Insurance and Derivatives

• Insurance Contracts: Create insurance contracts that execute automatically, where payments are made as predefined conditions (such as meeting insurance policy requirements) are met.
• Financial Derivatives: Implement derivative products, such as swaps or forwards, using tokenized assets on the RGB protocol, allowing for risk management and speculation within Bitcoin.

In summary, the RGB protocol provides a versatile platform for creating a wide range of applications, from digital asset issuance to decentralized financial systems and smart contracts.

Do we really need other tokens on Bitcoin?

The RGB protocol, initially designed as a solution for token creation, has faced criticism—even from some of its developers.

When RGB was first conceptualized, its primary focus was on enabling token issuance. However, this approach introduced challenges, particularly with client-side validation. For example, it was difficult to prevent multiple tokens from being sent to the same UTXO (Unspent Transaction Output).

In other words, the original RGB protocol worked effectively only in scenarios with a single RGB token or when creating a new output was required. 

During this time, one of the developers was exploring ways to enhance Bitcoin’s programmability. He was also working on a machine learning protocol that, while not decentralized, was censorship-resistant.

As early as 2018, this developer foresaw the potential for censorship in the training and deployment of neural networks, anticipating centralized control over artificial intelligence by governments and large corporations—a concern that has become increasingly relevant today. To counter this, he began exploring how Bitcoin’s censorship-resistant properties could protect machine learning.

However, scaling such a solution on the traditional blockchain proved unfeasible. This led to the realization that RGB’s single-use seal concept could enable scalable, censorship-resistant computation using Bitcoin as the foundation.

With RGB, it became possible to perform complex and scalable computations, such as smart contracts and token management, in a censorship-resistant manner. This functionality could extend to both layer one (on-chain) and layer two (e.g., Lightning Network) transactions, abstracting the blockchain while maintaining compatibility with any Bitcoin transaction, whether mined or part of a Lightning channel.

Between 2018 and 2019, the potential of the RGB protocol started gaining recognition. However, interest in tokens on Bitcoin waned, leading to a period of stagnation in the project.

Despite this, Bitfinex—one of the project’s earliest supporters—expressed interest in bringing Tether to Bitcoin as a way to scale transactions. This renewed enthusiasm, and in 2019, several contributors came together to collaborate on the development and enhancement of the protocol.

What is the RGB ecosystem like and which companies are involved?

Currently, the RGB ecosystem comprises different entities, both for-profit and nonprofit. 

Companies like Bitfinex are involved for commercial reasons, such as implementing Tether on Bitcoin. Fulgur Ventures, an investment fund focused on the Bitcoin ecosystem, has recognized the potential of the RGB protocol and encouraged its portfolio companies to adopt this technology.

Additionally, companies like Bitrefill and Inbitcoin have joined the initiative.

LNP/BP Standards Association

To prevent commercial interests from influencing protocol development, the LNP/BP (Lightning Network Protocol/Bitcoin Protocol) Standards Association, a nonprofit organization, was established.

The organization was founded to ensure that all RGB protocol development is conducted independently, preserving the project’s integrity.

The association’s name, LNP/BP, is inspired by the TCP/IP protocol, which became the internet standard. Similarly, LNP/BP aims to establish a standard for a new generation of decentralized, censorship-resistant services built on Bitcoin, with the RGB protocol aligning with this vision.

Technologies used in the RGB Protocol

The Really Good Bitcoin (RGB) protocol offers endless possibilities, reflecting a significant level of complexity in its technical functionality.

Below is a summary of the key technologies used and a brief explanation of how they integrate with the protocol:

1. Bitcoin Blockchain:

• Security Base: The Bitcoin blockchain serves as the security foundation for the RGB protocol. Although contract and tokenized asset data are not stored directly on the blockchain, Bitcoin is used to record cryptographic commitments that guarantee the integrity and immutability of RGB contracts and transactions.
• UTXO (Unspent Transaction Output): RGB leverages Bitcoin’s UTXO model to reference assets and contracts, using unique seals anchored to Bitcoin transactions, ensuring that each state can be validated in a decentralized manner.

2. Client-Side Validation:

• Local Processing: In the RGB protocol, state and transaction validation occurs on the client side, meaning each user is responsible for validating the information locally, without relying on centralized nodes or the blockchain for this verification.
• Privacy: This approach (client-side validation) ensures that operations remain private, as contract data is not transmitted or stored on the Bitcoin blockchain, but rather is kept by the participants themselves.

3. Commitment Schemes:

• Cryptographic Commitments: Contract and asset data in RGB are protected by cryptographic commitment schemes, allowing information to be hashed and recorded on the blockchain without revealing the underlying details.
• Single-Use Seals: Single-use seals are a specific type of cryptographic commitment that ensures a state or asset can only be spent or altered once. This is crucial for preventing fraud, such as double-spending, and ensuring contract integrity.

4. Merkle Trees:

• Merkle Trees: These are data structures that enable efficient verification of large data sets. In the RGB protocol, Merkle trees are used to organize and validate contract states and asset ownership efficiently, allowing only small data portions to be verified while maintaining the integrity of the entire set.

5. Bulletproofs:

• Zero-Knowledge Proofs: Bulletproofs are a type of zero-knowledge proof used to ensure that information can be verified without revealing its contents. In the RGB protocol, Bulletproofs help maintain the privacy of contract and transaction details, enabling verification without compromising privacy.

6. Scriptless Scripts:

• Simplified Smart Contracts: Scriptless scripts are a technique that allows the implementation of smart contracts without complex scripts on the blockchain. They use digital signatures to implement smart contract logic off-chain, enhancing efficiency and privacy.
• Compatibility with Schnorr: RGB utilizes the flexibility of scriptless scripts in combination with Schnorr signatures (introduced with Taproot) to create smart contracts that are indistinguishable from regular Bitcoin transactions.

7. Taproot and Schnorr Signatures:

• Taproot: An upgrade to Bitcoin that enables more efficient and private transactions by combining multiple spending conditions into a single condition. In the RGB protocol, Taproot facilitates the implementation of more complex and private smart contracts.
• Schnorr Signatures: Provide a more efficient way to aggregate signatures and spending conditions, essential for implementing scriptless scripts in RGB, allowing greater privacy and reduced complexity.

8. Descriptor Wallets:

• Wallet Management: RGB uses descriptor wallets, a technology that precisely describes how a Bitcoin wallet manages its UTXOs, providing advanced support for complex signature setups and spending conditions. This is fundamental for the flexibility needed in managing tokenized assets and smart contracts.

9. Networking and Data Infrastructure:

• Data Propagation: Although the Bitcoin blockchain is used for commitments, the RGB protocol requires infrastructure to propagate contract and state data between participants. This may include using peer-to-peer (P2P) networks and other decentralized solutions to efficiently share and synchronize data.
• Abstracted Data Layer: RGB is designed to be agnostic regarding the data layer used to transmit information, allowing various networks and protocols to be used as needed.

10. LNP/BP Standards:

• Layer Protocol Standards: The Really Good Bitcoin protocol is part of the technology and standards set known as LNP/BP (Layered Networking Protocol/Bitcoin Protocol). These standards define how different network and blockchain layers interact, enabling interoperability and the creation of advanced solutions on Bitcoin.

In summary, the RGB protocol integrates multiple technologies to create a robust system for smart contracts and tokenized assets, while upholding the principles of privacy, security, and scalability within the Bitcoin ecosystem.

Comparison with other Bitcoin Solutions

Drivechains

Unlike Drivechains, which depend on BIP300 and BIP301 proposals and require significant changes to Bitcoin, such as hard forks, the RGB protocol operates with Bitcoin’s existing technology. It can also adapt flexibly to future upgrades without necessitating alterations to Bitcoin’s main layer.

Ordinals

While Ordinals store all data directly on the blockchain, the RGB protocol records only data commitments. This approach significantly reduces blockchain space usage while leveraging the security of UTXOs.

Moreover, this design facilitates smoother integration with the Lightning Network.

RGB and the Lightning Network

When integrating RGB with the Lightning Network, it is important to note that the Lightning protocol itself does not require modification. Instead, adjustments are needed in the software managing transactions, as it must account for RGB’s state to correctly handle commitments in UTXOs.

Currently, there are two main Lightning node implementations that support RGB:

The first is the LNP Node, developed by the LNP/BP Standards Association, designed to work with both the Lightning Network and the RGB protocol. The second implementation was developed by the Bitfinex team, who modified the LNDK node to add support for RGB.

Additionally, studies are underway to integrate RGB with C-Lightning (now called Core Lightning) using the plugin infrastructure. This would be possible with small modifications to plugin APIs, allowing RGB to be used alongside this node.

Thus, for RGB protocol to work in a Lightning channel, both participants must run RGB-compatible software. This requires a specific version of the Lightning node that supports RGB, allowing RGB communication between them during asset issuance or transfer. 

As these transactions are off-chain, they don’t need to be recorded on the blockchain, offering significant advantages in scalability and privacy.

One of the main reasons for transferring sats within the RGB ecosystem is the possibility of adding extra functionalities, such as token issuance or performing more complex operations that wouldn’t be possible solely with the standard Lightning Network.

Thus, by using an RGB-compatible Lightning node, users can integrate their sats into the RGB ecosystem, expanding operational possibilities, including the issuance and transfer of digital assets under more elaborate conditions.

What to expect from the RGB Protocol in the future?

The future of RGB holds immense potential, but a crucial step is its adoption by real-world projects. Currently, there is some confusion about whether RGB is on “mainnet” or “testnet.” It is important to note that RGB is not a network in the traditional sense, like Bitcoin or the Lightning Network.

RGB does not independently connect to a specific network. Instead, when an asset is issued using RGB, it is tied to a chosen network, whether Bitcoin’s “mainnet” or “testnet.” The decision lies entirely with the issuer.

If an asset is issued on RGB’s “mainnet,” it will exist on “mainnet.” Each smart contract in RGB operates in isolation, functioning like a shard or a “blockchain” of its own, though RGB itself is not a blockchain.

Some assets have already been issued on “mainnet,” but it is generally recommended to continue using “testnet” until substantial and proven economic activity on RGB demonstrates the system’s security.

While the protocol has undergone test coverage, no formal audits have been completed yet. Addressing this gap is a priority for the coming months.

Although some companies have expressed interest in conducting audits, the nonprofit organization behind RGB has limited funding, which constrains the scope of these efforts. As such, individuals or entities choosing to use RGB on “mainnet” are responsible for ensuring they are satisfied with the protocol’s security level.

Conclusion

As we have seen, although the protocol has existed for some time, the RGB ecosystem is still in its early stages. While the primary infrastructure is already operational, there are still few applications available, and it may take time for RGB to expand its tools and attract more users. 

It is essential to remember that RGB development is driven by the Bitcoin community and progresses more slowly, with less marketing focus. In addition, developers need to acquire extensive knowledge, not only about Bitcoin, but also about state transitions and specific RGB contracts, which can pose a challenge.

However, if you want to learn more about the RGB protocol, you can visit rgb.tech, where you’ll find detailed information, including source code repositories, specifications, and installation instructions.

We hope this article has helped you understand a bit more about the complex world of the RGB protocol.

Until the next time and Opt Out!

The post What is the RGB protocol on Bitcoin? appeared first on Area Bitcoin.

Born in Rio Grande do Sul, Brazil, Carol initially pursued a career in dentistry—a traditional choice influenced by her family and the promise of stability.

She worked in a public role and even opened her own dental practice. However, her life took a remarkable turn when she discovered Bitcoin.

Today, let’s delve into Carol Souza’s story and her rise as a prominent educator in the world of Bitcoin.

Let’s get started!

Carol Souza’s Story

As mentioned in the introduction of this article, Carol Souza, now known for her educational work on Bitcoin, began her career in an entirely different field—as a dentist.

Thus, her journey into the world of Bitcoin involved important choices and personal challenges that shaped her path.

The Beginning

At just 17, Carol Souza faced the difficult decision of choosing a profession. Coming from a conservative family with a military father focused on stability, she felt a pull toward a secure path. At the same time, her adventurous, curious side shone through; she even took up drumming.

This free-spirited nature sparked her fascination with technology, particularly through platforms like Napster and torrents, where she spent hours downloading music and connecting with people around the globe. This interest in tech would ultimately lead her to Bitcoin.

When it was time to choose a career, Carol was torn between dentistry and advertising. She even thought about blending her love for music and advertising by creating jingles.

However, a conversation with her father proved pivotal. He advised that dentistry could provide greater independence, financial stability, and freedom as her own boss, while advertising, unless she started her own agency, might limit her to working for others without as much growth potential or control over her schedule.

Following this guidance, Carol Souza chose dentistry.

A career in dentistry

Carol enrolled at PUC (Pontifical Catholic University) and quickly developed a deep passion for dentistry. After a year and a half, she transferred to UFRGS (Federal University of Rio Grande do Sul), where she completed her degree. Upon graduating, she began to consider her next steps carefully.

Faced with the choice of opening her own dental office or working for others, Carol Souza sought stability by taking public exams while also considering specialization, as she liked the idea of working in health posts and serving the community.

Soon after graduation, she passed an exam in a nearby city and opened her private practice, balancing life as both a public servant and an entrepreneur.

From Investment Interest to a Bitcoin Deep Dive

Carol Souza ventured into the world of investments in 2013, immersing herself in the stock market, treasury bonds, and other traditional financial assets.

However, in 2017, as Bitcoin’s price surged, she decided to buy her first satoshis. Initially, she saw Bitcoin as another asset in her investment portfolio, which already included stocks and fixed-income investments. Her first step was to invest R$1,000, a sum she deemed safe enough to take on the risk of volatility.

From that first purchase, Carol viewed Bitcoin as a long-term asset, understanding the impact of its volatility. Even though she bought near the peak of the 2017 rally, she stayed calm through the decline in 2018.

During this period, she kept her Bitcoin in her wallet while continuing her work as a dentist and public servant.

However, by late 2018, Carol’s perspective on Bitcoin began to shift. She started considering accepting Bitcoin payments at her dental office, marking a pivotal change.

For Carol, Bitcoin transformed from a simple financial asset into a true currency, offering a practical alternative to the high fees charged by card machines, which could reach up to 20%.

Beyond that, Bitcoin provided unique financial independence, enabling her to act as her own bank without relying on intermediaries.

This marked the beginning of Carol’s deep dive into Bitcoin.

What began as a means of diversifying investments grew into a profound understanding. She came to see Bitcoin as a revolutionary technology, one that could transform the financial system—a tool poised to reshape how we interact with money and centralized systems.

The start of Area Bitcoin

In 2020, Carol Souza made the bold decision to leave her stable career as a dentist and public servant to fully dedicate herself to the Area Bitcoin project.

For many, this choice might have seemed risky, but for Carol, it represented a calling inspired by the transformation Bitcoin had sparked in her worldview.

Up until that point, Carol Souza believed strongly in the security offered by a public job and a steady career. However, as she immersed herself further in the world of Bitcoin, she began to question this belief.

“I realized that stability was an illusion,” she shares. “If the Carol from 2013 heard this, she’d think it was crazy, but Bitcoin completely changed the way I think.”

When asked what she meant by “stability is an illusion,” Carol explained that the traditional routine of working five days a week in pursuit of security felt, in fact, quite fragile. She saw how external factors, such as political or economic shifts, could easily disrupt this perceived stability.

“Bitcoin showed me that the financial system is far more volatile than we realize. This idea of security can vanish in an instant due to a single government decision,” reflects Carol Souza.

Even while still working as a dentist and public servant, Carol devoted much of her free time to studying Bitcoin, listening to podcasts, reading books, and diving deep into the subject.

“I was completely focused, and through this journey, I realized there was something much bigger at stake,” she recalls.

Transitioning to the online world wasn’t easy for Carol, who had always been more reserved and hesitant about social media. “I hated appearing in videos,” she admits, laughing.

However, with the support of her partner, Kaká Furlan, Carol Souza gradually overcame this reluctance and began to express herself more openly. Over time, the videos for the Area Bitcoin YouTube channel improved, and Area Bitcoin began to gain traction.

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The Turning Point (Day 1)

The turning point, or “Day 1,” came when Carol Souza found herself completely exhausted—working in her dental practice by day and recording videos for the Area channel by night.

“I was drained, completely worn out. That’s when I thought, ‘What if I left it all behind and dedicated myself 100% to Bitcoin?’” she recalls.

Realizing that while there were many dentists, there were few people fully committed to educating about Bitcoin, Carol began to consider stepping away from her dentistry career.

However, leaving behind years of study and her own practice was not an easy decision.

“In the beginning, it was scary. It seemed crazy to leave everything I had built. But I thought: the diploma is here; I can always go back. This moment of contributing to Bitcoin might not come again,” says Carol Souza.

The pandemic in 2020, with lockdowns and more time at home, accelerated her decision, giving Carol the final push she needed to dedicate herself fully to Bitcoin.

“It was a leap into the unknown, but looking back, it was the bravest decision I ever made—and I don’t regret it,” she concludes.

Today, the results speak for themselves: Area Bitcoin is one of the largest Bitcoin education platforms in the world, with over 500,000 followers on social media, 4,000 students, and a global impact on millions of people with its educational content on Bitcoin.

Transformation to a Bitcoin Mentality

Through her journey with Bitcoin, Carol Souza underwent a profound transformation in her mindset and worldview. When asked about Bitcoin’s impact, she readily says that the biggest shift has been in the self-confidence it’s given her.

“Before Bitcoin, I fully trusted third parties — institutions, the government, the decisions I made, thinking they would be preserved in the future,” she recalls.

However, as she delved deeper into Bitcoin, the history of money, and the effects of inflation, she came to realize the importance of taking control of her destiny and reducing her reliance on institutions and others.

Carol Souza remembers how, before discovering Bitcoin, she passively accepted much of the information she encountered. “A news story would air on TV, and I would just believe it. Now I question everything,” she asserts.

This healthy skepticism drove her to seek information independently rather than merely accepting statements from authorities or governments. Bitcoin became a catalyst for developing this critical perspective and for realizing that true financial freedom begins with self-reliance.

This shift in thinking tied directly to the concept of independence.

“Before, I was building a portfolio of stocks and fixed income, trusting the numbers and valuations of companies. But then you see cases like Americanas (A huge retail company that went bankrupt in Brazil), where the numbers were falsified and investors were deceived,” explains Carol Souza.

She also adds, “Bitcoin helped me see that not everything we’re told is real. Today, I have more confidence to investigate and validate the information myself.”

Alongside critical thinking, her self-confidence also grew. For Carol Souza, Bitcoin is not just a form of digital currency; it’s a way of understanding how the world truly operates.

“I started to realize that the stability we seek so much, whether in jobs, investments, or institutions, is illusory,” she asserts.

It’s this sense of predictability and control over her own money that fuels her courage to follow this alternative path.

However, processing these shifts in perspective wasn’t easy. Carol explains that it was a major transformation, and now she views the financial system, government roles, and even the media with a degree of skepticism.

“Bitcoin makes you rethink everything because you realize that the government and banks control money, manipulate price inflation indicators, and are often in collusion to keep the system as it is,” says Carol.

This new outlook brought Carol not only a critical perspective but also greater peace of mind. She feels more in control of her own life, no longer relying on external systems that can be manipulated or corrupted.

“Bitcoin strengthened me, gave me mental clarity that I need to keep developing,” she concludes.

Today, Carol Souza remains firmly on the path she chose, confident that she is making decisions that secure her freedom and financial future.

Speaker at Major Bitcoin Conferences

Carol Souza is one of Brazil’s leading Bitcoin educators. She has participated in Bitcoin developer seminars and is a regular speaker at conferences worldwide, including Adopting Bitcoin in El Salvador, Satsconf in Brazil, Bitcoin Atlantis in Portugal, and Surfin’ Bitcoin in France, among others.

Global Perspective on Bitcoin

Carol, a featured speaker at prominent conferences like Adopting Bitcoin, Bitcoin Atlantis, and Surfin’ Bitcoin, offers insights into Bitcoin’s ecosystem development in Brazil and its global counterparts.

Development of Bitcoin in Brazil

When asked about the evolution of Bitcoin’s ecosystem in Brazil from 2021 to now, Carol recalls a very different landscape.

“Back in 2021, I felt like we weren’t on the same page,” she says. At that time, Brazil was still very focused on the broader cryptocurrency universe, with little distinction between Bitcoin and “crypto.”

According to Carol, environments solely dedicated to Bitcoin were scarce in the country, contrasting with international conferences like Adopting Bitcoin, where the line between Bitcoin and other cryptocurrencies was clearly drawn.

However, inspired by these international experiences, Carol began promoting this focused vision back in Brazil, aiming to educate the public on the distinction between Bitcoin and the wider crypto world.

Now, in 2024, Carol sees a much more developed Bitcoin ecosystem in Brazil, increasingly aligned with global trends.

“Today, Brazil has a very strong scene of Bitcoiners, and in many aspects, we’re on the same page as the folks abroad,” she observes.

Events like SatsConf and initiatives like Area Bitcoin exemplify the rapid growth of the national scene. She also highlights that many Brazilians now work with international Bitcoin-only companies and actively participate in global conferences and meetups.

“In 2021, it was strange even to mention that Bitcoin and crypto weren’t the same thing, and people deliberately mixed them to sell their narratives,” Carol Souza comments.

Moreover, she mentions a notable development in Brazil: the emergence of circular economies in regions like Rolante and Jericoacoara, where Bitcoin is starting to be used practically in daily transactions.

“This wasn’t something seen a few years ago,” Carol Souza notes, indicating the real impact Bitcoin is having in certain Brazilian communities.

For her, this mindset shift is significantly impacting Brazil’s Bitcoin ecosystem. “Today, Brazil leads in Bitcoin-related searches on Google, comparable to the U.S., and interest in Bitcoin has grown tremendously,” she highlights.

However, she acknowledges that, given Brazil’s vast size, there are still many who confuse the narratives of crypto and Bitcoin, which can sometimes lead to misunderstandings.

Optimism for Bitcoin in Brazil

Carol is optimistic about the future, believing Brazil will continue to align with the international Bitcoin community.

“Brazilian Bitcoin conferences are now much more focused on Bitcoin development, whereas back in 2021, half the talks were about trading,” she observes.

She foresees even more growth in the coming years, with more Brazilians gaining a deeper understanding of Bitcoin and actively participating in its development.

For Carol Souza, this transformation is not just a passing trend; she believes Brazil will continue advancing within the Bitcoin ecosystem. She feels that this growing interest will play a vital role in helping people gain a true understanding of what Bitcoin is.

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Additionally, any exchange of goods or services in Bitcoin between two people can also be considered a P2P transaction.

Read on to explore how these direct exchanges work!

What is P2P?

P2P stands for “peer-to-peer,” a term used to describe direct interactions and negotiations between two individuals. The abbreviation comes from the English pronunciation, where “P” and “2” sound similar to “peer” and “two,” which closely resembles “to.”

This is how Bitcoin was originally traded before the emergence of exchanges.

As the market grew, various exchanges appeared. However, P2P trading still exists and will likely never disappear because Bitcoin is open source and decentralized. Even if intermediaries are restricted, people can still trade directly with each other.

The old word-of-mouth has been amplified

The internet has transformed traditional “word-of-mouth,” greatly expanding the ability to find people to trade Bitcoin with online.

Anyone can act as a P2P participant, facilitating trades within their online and offline social circles.

It has to match!

The methods used to connect buyers and sellers vary in complexity and impact on privacy, sometimes involving legal risks. Those looking to buy or sell can connect through messaging apps, forums, discussion groups, social media, and even specialized platforms.

Additionally, some people offer services to connect interested parties, sometimes charging for matchmaking or even providing intermediary support during transactions.

As a result, the amount of financial information shared depends on the trust level between the parties involved.

Each participant must understand the benefits and trade-offs of these interactions.

Even exchanges that handle asset custody take advantage of their brand to offer a separate service where they display a list of buy and sell orders placed by customers. This allows market makers and takers to finalize transactions with each other, as well as conduct operations between both parties.

Some exchanges help resolve potential complications, while others inform that the risks and necessary precautions will be solely the responsibility of those involved.

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Decentralized arbitration

One of the best ways to trade directly and reduce the risk of regulatory interference is by using decentralized tools.

These platforms operate without a single owner, maintained instead by the community.

They not only display buy and sell orders but also offer solutions to disputes through mechanisms backed by incentives and penalties, promoting fairness in transactions.

Where to find a Bitcoin P2P?

With many options constantly emerging and disappearing, the best way to find people to buy and sell Bitcoin is through reputable companies, individuals, contacts, and recommendations—both online and offline.

However, here are some good options:

Bisq

Bisq is a well-known P2P platform that enables global trading with no intermediaries. This open-source desktop software lets users choose the transaction method when creating or accepting buy and sell orders.

Anyone can review and audit the code, ensuring transparency and trust in every transaction.

Because there are no intermediaries, the platform requires a security deposit as insurance against disputes. If issues arise, a Decentralized Arbitration Organization (DAO) can be used to resolve them.

Arbitrators operate under conditions that promote impartiality and protect honest users from non-compliance. When everything runs smoothly, both parties recover their locked collateral.

Bisq stands out for its privacy-focused approach, offering a solid alternative to traditional exchanges for those seeking financial autonomy and freedom.

Hodl Hodl

Hodl Hodl is a peer-to-peer platform primarily focused on Bitcoin. Its core aim is to minimize the role of intermediaries in transactions between buyers and sellers.

Founded in 2016 by Hodlex Ltd in London, Hodl Hodl stands out for its strong anonymity policy, as it doesn’t require users to follow Know Your Customer (KYC) or Anti-Money Laundering (AML) procedures.

The platform operates as a non-custodial service, meaning it doesn’t hold user funds. Instead, it serves as a meeting point, with Hodl Hodl acting as a mediator to ensure the transaction follows its custody policy.

Using a multisig escrow system, the platform reduces the risk of Bitcoin theft and speeds up transactions. Because it’s non-custodial, users don’t need to deposit funds in advance; instead, they connect their own third-party wallet. All trades happen directly between the parties’ Bitcoin wallets.

Hodl Hodl has become popular for its transparent, secure, and privacy-oriented approach.

Paxful

Paxful is a P2P platform for trading cryptocurrencies, founded in 2015 by a group of developers with the mission to make Bitcoin more accessible.

On Paxful, buyers send funds using the platform’s supported payment methods, such as prepaid VISA, gift cards, or Western Union, directly to the seller’s account.

Once the seller confirms receipt through Paxful’s escrow service, they release the Bitcoin to the buyer. Sellers can accept over 300 different payment methods, catering to more than 85% of international buyers.

Available worldwide, Paxful allows users to start with a minimum purchase of just $10. One unique benefit is that users don’t need to create a username or password—an email address is enough to access the market.

For those in regions where centralized exchanges are banned or inaccessible, Paxful serves as a solid alternative, usable anywhere with internet access.

With its wide range of payment options and global reach, Paxful offers a flexible solution for buying and selling Bitcoin directly, making it a popular choice for those seeking financial freedom and inclusion.

Find a reliable P2P trader through recommendations

A great way to find a reliable P2P trader is through recommendations from trusted individuals. This reduces the risk of encountering scammers or falling into traps.

Many P2P professionals operate online, with websites and social media presence. However, it’s important to take some precautions when choosing who to trade with.

Pay attention to details!

Whether the transaction is through an individual or a legal entity, check:

• If they operate individually, by word of mouth, or in an automated way;
• If they have a good reputation among the people you trust;
• If they use their own or public platform to engage interested parties;
• If they use their own or third-party applications for receiving and payment, or if they leave it up to the parties involved;
• If they intermediate during the contact between the parties;
• If they help resolve disputes;
• If they are more or less aligned with tax laws;
• How much they charge and for which stages;
• The transaction rules, implications, and administrative and financial counterparts.

There are many ways to send and receive payments:

• Handing over cash in person;
• Paying with cash at a bank’s personal or automated counter;
• You can pay deposit slips, whether at banks or lottery houses, with digital payment or cash;
• Transfers can be made online through various applications that do not require proof of purpose;
• You can use trusted family members and others to spread out and dilute amounts, avoiding regulatory limits.

Each method involves different delays and levels of privacy before completion.

The best advice is to be clear about what you intend to do and learn from the experiences of the more and less cautious, attentive, or naive, to choose a level of exposure aligned with your profile.

How to trade with another person?

To receive or send Bitcoin, the first step is to have a wallet to store your coins.

For small amounts, a hot wallet is sufficient. However, for larger sums, it’s safer to use a cold wallet that isn’t connected to the internet.

The process is straightforward:

1. Contact the P2P trader.
2. Specify the amount you want to buy and request a current Bitcoin quote.
3. The P2P trader locks in the quote, ensuring the price won’t change even if Bitcoin’s value fluctuates.
4. Transfer the agreed amount from your bank to the P2P trader.
5. Once the funds are received, the P2P trader will send the equivalent Bitcoin to your wallet address.

Are the fees worth it?

The fees charged by a P2P trader can vary considerably. Generally, the percentage charged is based on the transaction amount, meaning the larger the transaction value, the lower the fee charged by the P2P trader.

Keep in mind that fees usually range from 3% to 10%, plus miner fees for transferring Bitcoin to your wallet.

So, while P2P transactions may offer direct and private deals, fees are generally higher than those charged by exchanges.

What are the advantages of buying Bitcoin via P2P?

Buying Bitcoin via P2P has several benefits, one of the biggest being speed. P2P transactions are usually much faster than using an exchange, often taking less than 20 minutes for you to receive your satoshis in your wallet.

If you’re purchasing large amounts through an exchange, you typically have to go through a lengthy registration, verification, and approval process, which can take up to two days.

Privacy is another advantage. Many P2P platforms and individual traders don’t require identity verification, unlike exchanges that ask for personal information such as address, SSN, and bank details.

Additionally, P2P trading offers flexible payment options. You can use various methods like bank transfers, PayPal, credit and debit cards, and more, depending on the trader’s preferences.

What are the risks of trading Bitcoin via P2P?

While P2P trading has its benefits, it also comes with some risks. Unlike exchanges that keep records and are accountable for transactions, P2P purchases lack intermediaries, so you need to be vigilant to avoid scams.

Unfortunately, some scammers pose as P2P traders on social media, offering to sell Bitcoin. They’ll accept your bank transfer but never send the agreed amount of Bitcoin to your wallet.

Key tip: No reputable P2P trader will reach out to you via private messages to initiate a transaction. Always be the one to make the first contact. If someone approaches you unsolicited, consider it a red flag!

To minimize risk, start by trading small amounts to test the trader’s reliability.

Conclusion

P2P transactions offer an easy, secure, and anonymous way to buy Bitcoin. Although there’s more manual effort involved compared to traditional exchanges, the benefits — like increased privacy and flexible payment options — usually outweigh the hassle.

That said, always do your research and only trade with trusted P2P traders.

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