 Reviews about the project

<h3>Thwart blockchain based surveillance and censorship</h3><p><img src="https://samouraiwallet.com/strapi/uploads/hero_shot_nodev_84bfb869e6.png" alt="hero_shot_nodev.png" srcset="https://samouraiwallet.com/strapi/uploads/thumbnail_hero_shot_nodev_84bfb869e6.png 75w,https://samouraiwallet.com/strapi/uploads/small_hero_shot_nodev_84bfb869e6.png 241w,https://samouraiwallet.com/strapi/uploads/medium_hero_shot_nodev_84bfb869e6.png 362w,https://samouraiwallet.com/strapi/uploads/large_hero_shot_nodev_84bfb869e6.png 483w," sizes="100vw" width="483px"><br>&nbsp;</p><h3>Thwart blockchain based surveillance and censorship</h3><p>Circumvent financial surveillance with the most advanced privacy enhancing technologies on the market.</p><h3>Take it anywhere, even offline</h3><p>Bypass data network restrictions with offline sending. Roll your own offline storage wallet with any spare mobile phone.</p><h3>Be your own Swiss Bank</h3><p>Fully non custodial software ensures you are always in control of your private keys. No email address, no ID checks, and no hassle. Just install and go.</p><h3>RoninDojo</h3><p>A high performance plug and play full node perfectly tuned to provide strong privacy with Samourai built-in at the core.</p><h3>DOJO<br>A self hosted full node server that automatically syncs with your Samourai Wallet. Available today, free and open source.</h3><p>Dojo is made available as a self contained software package designed for users with low to medium technical ability.</p><h3>Whirlpool<br>Break the link of your bitcoins' prior history and stop blockchain surveillance before it starts.</h3><p>Whirlpool is an implementation of Chaumian CoinJoin designed to be extremely fast for a mobile first experience, but available on any platform.</p>

A modern bitcoin wallet hand forged to keep your transactions private your identity masked and your funds secured.

A bitcoin wallet for the streets

Features

Samourai Wallet Features

<p>A premium transaction that improves fungibility and frustrates Blockchain spies</p><h4>Thousands of legitimate transactions are flagged as suspicious every day</h4><p>Bitcoin Banks and Exchanges freeze funds and suspend users based on blacklists published by Blockchain spies.</p><figure class="image"><img src="https://samouraiwallet.com/strapi/uploads/aml_report_8d2a0ee715.png" alt="Introducing Ricochet" srcset="https://samouraiwallet.com/strapi/uploads/thumbnail_aml_report_8d2a0ee715.png 245w,https://samouraiwallet.com/strapi/uploads/small_aml_report_8d2a0ee715.png 500w,https://samouraiwallet.com/strapi/uploads/medium_aml_report_8d2a0ee715.png 750w,https://samouraiwallet.com/strapi/uploads/large_aml_report_8d2a0ee715.png 1000w," sizes="100vw" width="1000px"></figure><p><br><br>Blockchain spies look at the history of your coins around 5 hops deep. Your coins can be frozen for their past activity. Even if they weren't in your control.</p><h4>Ricochet adds 4 additional hops to a transaction</h4><p>By adding additional hops before the coins reach their final destination, the blockchain spies would need to look 10 hops backwards, increasing their costs and overheads.</p><h4>Not a silver bullet but a handy weapon</h4><p><span style="font-size:25.2px;">Ricochet doesn't solve the problem of blacklists but it does present a way to attack the way spies build black lists.</span></p><p>Hop 0 - The setup</p><p><span style="font-size:15px;">The wallet collects the needed inputs and calculates the total miners fee for the entire ricochet. 0.001 BTC is sent to Samourai as a fee for the ricochet send. In this transaction we are sending</span></p><p>Hop 1-4</p><p>Each hop transaction contains one input and one output</p><p>Final Destination</p><p>The final transaction containing the correct amount. One input and one output.<br><br><br><br><br><br>&nbsp;</p>

Introducing Ricochet

stealthily send and receive bitcoin with a publicly shareable code

<h2>Add a contact's payment code to send them bitcoin anonymously</h2><p>Find contacts with a public payment code&nbsp;<br>We've made it easier to find your contacts and friends who have a payment code with our public directory. Simply search for your contacts by email, twitter, facebook, or reddit and add their code to your wallet.</p><h2>Add public codes to your wallet</h2><p>A broadcast transaction will be sent to the blockchain that creates a unique 1-1 connection between both your wallet and the contact's wallet. This private connection allows you to deterministically generate bitcoin addresses for the contact that are only known to you both.</p><p><img src="https://samouraiwallet.com/strapi/uploads/sendpaymentcode_81f12e892d.gif" alt="sendpaymentcode.gif" srcset="https://samouraiwallet.com/strapi/uploads/thumbnail_sendpaymentcode_81f12e892d.gif 78w,https://samouraiwallet.com/strapi/uploads/small_sendpaymentcode_81f12e892d.gif 251w,https://samouraiwallet.com/strapi/uploads/medium_sendpaymentcode_81f12e892d.gif 377w,https://samouraiwallet.com/strapi/uploads/large_sendpaymentcode_81f12e892d.gif 502w," sizes="100vw" width="502px"></p><h3>Simple private sending</h3><p>Once the broadcast transaction has one confirmation simply tap the contact to immediately and privately send Bitcoin directly to that wallet.</p><p><img src="https://samouraiwallet.com/strapi/uploads/mypaymentcode_f6a3f051a9.png" alt="mypaymentcode" srcset="https://samouraiwallet.com/strapi/uploads/thumbnail_mypaymentcode_f6a3f051a9.png 78w,https://samouraiwallet.com/strapi/uploads/small_mypaymentcode_f6a3f051a9.png 251w,https://samouraiwallet.com/strapi/uploads/medium_mypaymentcode_f6a3f051a9.png 377w,https://samouraiwallet.com/strapi/uploads/large_mypaymentcode_f6a3f051a9.png 502w," sizes="100vw" width="502px"></p><h4>Share your payment code publicly without privacy loss.</h4><p>Share your code</p><p><span style="font-size:15px;">Your payment code is unique to the wallet and never changes. You can publish and share your payment code publicly without a loss of privacy for you or the person who connects to your code.</span>&nbsp;<br><br>Seamlessly receive payments</p><p>When your payment code is added by another wallet you will be a one way connection is established with their wallet and your wallet. This private connection allows their wallet to privately send your wallet bitcoin at anytime. You will never need to manually communicate a bitcoin address with that wallet again.</p>

Introducing Public Payment Codes

<p><strong>Feature:</strong></p><ul><li><strong>Full Offline Mode</strong></li></ul><p>Samourai works under any network conditions. This is an attractive option for those interested in creating ultra secure cold storage systems, as well as those under hostile or cost prohibitive network conditions.</p><ul><li><strong>Segregated Witness</strong></li></ul><p>Segregated Witness is a recent upgrade to the bitcoin network that helps keep miner fees as low as possible when transacting. Samourai Wallet was among the first to support SegWit, allowing users to create efficient transactions that keep miner fees as low as possible.</p><ul><li><strong>Taproot</strong></li></ul><p>Taproot is a recent upgrade to the bitcoin network that improves bitcoin for multisignature and layer 2 protocols. Samourai supports sending to these new address types.</p><ul><li><strong>Smart Miner Fees</strong></li></ul><p>Miner fees are the cost of doing business on the bitcoin blockchain. They are an incentive for the miner to add your transaction to a block, as well as a mechanism to prevent spam. Samourai Wallet has the best in class miner fee estimation to help make sure your transactions confirm quickly without you overpaying.</p><ul><li><strong>Dojo</strong></li></ul><p>Unless you run your own full node, you are trusting someone at some point. Until now it has been difficult to run your own full node and still enjoy the convenience of a mobile wallet. Dojo changes everything.</p><ul><li><strong>STONEWALL</strong></li></ul><p>Most bitcoin wallets leave a trail of meta-data that blockchain surveillance firms use to deanonymize you. STONEWALL helps guard against address clustering deanonymization attacks.</p><ul><li><strong>PayNym</strong></li></ul><p>When you share a normal address publicly, you are giving surveillance firms a starting point to track you. PayNyms defend against this type of "First Touch" attack by never revealing an address to anyone other than the sender and recipient of the transaction.</p><ul><li><strong>Batch Spending</strong></li></ul><p>Batching is a way of composing a single transaction that contains many unrelated transactions. This can be advantageous when miner fees are high and you have multiple transactions to make at a given time.</p><ul><li><strong>Scrambled PIN</strong></li></ul><p>PIN access screen is randomized on every load and doesn't provide visual feedback, to thwart screen recording spyware and other common attacks.</p><ul><li><strong>Stealth Mode</strong></li></ul><p>Stealth Mode removes Samourai from the launcher and home screen of your Android device. To reveal the wallet just dial a secret code.</p><ul><li><strong>Ricochet</strong></li></ul><p>Toggle Ricochet when sending to a third party exchange or service such as Coinbase, Gemini, ShapeShift, or Localbitcoins to significantly reduce the risk of unjustified account closure by these services.</p><ul><li><strong>Whirlpool</strong></li></ul><p>When you cycle your coins in the Whirlpool you are breaking the link between inputs and outputs of your bitcoin transactions. Cycle all your Bitcoin for the most privacy.</p><h3>About Samourai</h3><p>We are privacy activists who have dedicated our lives to creating the software that Silicon Valley will never build, the regulators will never allow, and the VC's will never invest in. We build the software that Bitcoin deserves.</p>

Feature Comparison

Samourai Blog

Samourai Wallet Blog

<p>The global Bitcoin community continues to expand as more people search for financial systems that are open, decentralized, and independent from traditional institutions. With growing international interest in cryptocurrency, privacy-focused wallet technology plays an important role in helping users securely manage digital assets across borders.</p><p>This update welcomes new users from different regions who are exploring tools that allow them to participate in the Bitcoin network while maintaining control over their financial data.</p><h2>Growing Global Interest in Bitcoin</h2><p>Bitcoin adoption is no longer limited to a small group of early technology enthusiasts. Today, individuals from many countries use cryptocurrency for a wide variety of purposes including savings, payments, and financial independence.</p><p>For international users, access to decentralized financial infrastructure can provide an alternative to traditional systems that may be slow, expensive, or restrictive. A well-designed wallet allows anyone with a smartphone to interact with the Bitcoin network without relying on banks or centralized platforms.</p><p>This global accessibility is one of the defining features of cryptocurrency. People can send and receive value across borders without intermediaries, creating new opportunities for individuals and businesses worldwide.</p><h2>Why Privacy Matters in Digital Finance</h2><p>Although Bitcoin transactions are recorded on a public blockchain, many users prefer to keep their financial activity private. Transparency helps secure the network, but it can also reveal patterns about spending behavior and wallet balances.</p><p>Privacy-focused wallet technology helps address this challenge by introducing tools that make blockchain analysis more difficult. When used correctly, these tools can reduce the ability of external observers to track transactions or connect them to a specific identity.</p><p>For users living in regions where financial surveillance or restrictions are common, maintaining a level of confidentiality can be especially important.</p><h2>Tools That Help Protect Transaction Data</h2><p>Modern Bitcoin wallets are designed with advanced features that support both security and privacy. These features can include improved address management, transaction coordination techniques, and network communication protections.</p><p>Such tools allow users to manage their funds in a way that reduces traceability while maintaining compatibility with the Bitcoin blockchain. By improving how transactions are structured and broadcasted, privacy-focused wallets help users retain greater control over their financial information.</p><p>These innovations continue to evolve as developers experiment with new approaches to strengthening user privacy within decentralized networks.</p><h2>Empowering Users Through Self-Custody</h2><p>Another key benefit of modern Bitcoin wallets is self-custody. This means users maintain control of their private keys rather than trusting third-party custodial services.</p><p>Self-custody aligns with the original philosophy of Bitcoin, where individuals act as their own bank and manage their funds directly. While this approach requires responsibility and careful security practices, it also removes reliance on centralized intermediaries.</p><p>For international users who may face restrictions in traditional financial systems, self-custody provides a powerful way to maintain independence and direct control over digital assets.</p><h2>Building a Global Privacy-Focused Community</h2><p>As the number of Bitcoin users continues to grow worldwide, education and community collaboration become increasingly important. Developers, researchers, and everyday users all contribute to the evolution of privacy tools and wallet technologies.</p><p>By welcoming new participants from different regions, the global Bitcoin ecosystem becomes stronger and more resilient. Shared knowledge and open discussion help improve both security practices and privacy solutions for everyone involved.</p><p>The continued growth of international users highlights the universal appeal of decentralized finance. With the right tools and understanding, people everywhere can participate in a financial system that values transparency, independence, and personal control.</p>

Welcome to New International Bitcoin Wallet Users

<p>Software development in the cryptocurrency ecosystem often requires balancing innovation with the policies of major technology platforms. Mobile applications, especially those related to financial tools, must comply with the distribution rules of the marketplaces where they are published. Occasionally, these rules can affect the availability of certain features that users rely on for security and privacy.</p><p>A recent update introduced temporary changes to several advanced functions that were previously available within the wallet. These adjustments were necessary in order to comply with new platform requirements affecting mobile applications.</p><h2>Changes Introduced in the Latest Wallet Version</h2><p>The updated release includes the temporary removal of several optional security features that had been available for many years. These features were originally created to enhance user protection and give wallet owners more control over their devices.</p><p>The functions affected by this update include stealth mode, remote command functionality through SMS, and SIM switch protection. While these tools were useful for specific security scenarios, platform restrictions required them to be disabled in the version distributed through the official mobile store.</p><p>These changes were not introduced because of technical limitations, but rather because of evolving policies governing mobile applications and device permissions.</p><h2>Understanding Stealth Mode</h2><p>Stealth mode was designed to help users hide the presence of the wallet application on their device. In certain situations, users prefer to keep financial applications out of sight in order to reduce the risk of physical theft or unwanted attention.</p><p>When enabled, this feature allowed the wallet to become invisible in the standard list of applications. Access to the wallet could only be restored through a specific dial code or activation process.</p><p>Although this functionality improved personal security for some users, it relied on system behaviors that are increasingly restricted in modern mobile operating systems.</p><h2>Remote SMS Commands and Device Protection</h2><p>Another removed feature allowed users to send remote commands to their wallet using SMS messages. This capability was particularly helpful in situations where a device was lost or stolen.</p><p>With remote commands, users could trigger security actions from another phone. These actions included locking the wallet or wiping sensitive information stored on the device.</p><p>Such functionality provided an additional layer of protection for users concerned about unauthorized access. However, new policies regarding SMS permissions and remote device control have made it more difficult for applications to maintain these capabilities within official app marketplaces.</p><h2>SIM Switch Defense</h2><p>SIM switch protection was another advanced security measure. This feature monitored changes to the SIM card installed in a device and alerted the wallet owner if a suspicious change occurred.</p><p>SIM swap attacks are a known threat in the digital world. In these attacks, criminals attempt to transfer a victim’s phone number to a different SIM card in order to intercept messages or bypass authentication systems.</p><p>By monitoring SIM changes and notifying users, the wallet provided an early warning mechanism that could help prevent unauthorized access to digital accounts.</p><h2>Alternative Distribution and Future Plans</h2><p>Although these features were removed from the version distributed through the official mobile store, developers have explored alternative ways to make the full functionality available to users who require it.</p><p>Independent distribution methods and open-source application repositories allow software projects to provide versions of their applications without the same restrictions imposed by large mobile platforms.</p><p>This approach ensures that advanced privacy and security tools can continue to exist while still allowing a simplified version of the wallet to remain accessible through mainstream app stores.</p><h2>Maintaining Security Despite Platform Limitations</h2><p>Even with the temporary removal of certain features, maintaining strong security practices remains essential for all cryptocurrency users. Protecting recovery phrases, using strong device security, and keeping software updated are critical steps for safeguarding digital assets.</p><p>The evolving relationship between decentralized financial tools and centralized technology platforms continues to shape how cryptocurrency applications are distributed and maintained.</p><p>Developers and users alike must adapt to these changes while continuing to prioritize privacy, security, and financial independence in the digital economy.</p>

Temporarily Disabling Stealth Mode and Remote SMS Commands

<p>The development of privacy-focused Bitcoin tools has always been driven by the idea that users should maintain full control over their financial information. One of the most important steps toward achieving that goal is reducing reliance on centralized infrastructure. The introduction of Dojo 1.0 represents a major milestone in building a more independent and privacy-oriented Bitcoin wallet ecosystem.</p><p>Dojo is designed as a backend server that connects directly to a user’s Bitcoin node. Instead of depending on third-party servers to obtain wallet data, the system allows individuals to operate their own infrastructure and interact with the blockchain on their own terms.</p><h2>A Step Toward Full User Sovereignty</h2><p>For many lightweight Bitcoin wallets, certain information must be requested from remote servers. These servers help retrieve transaction history, balance data, and network information. While convenient, this model can create potential privacy concerns because the service provider may technically observe wallet activity.</p><p>The release of Dojo changes this model by allowing users to run their own backend environment. When paired with a personal Bitcoin node, the wallet communicates directly with the user’s own infrastructure rather than relying on external servers.</p><p>This approach aligns with the broader philosophy of decentralized finance. Individuals who run their own node gain greater independence and reduce the amount of data shared with third parties.</p><h2>How Dojo Works with a Bitcoin Node</h2><p>Dojo functions as an intermediary layer between a mobile wallet and a full Bitcoin node. It processes blockchain information, indexes relevant transactions, and provides wallet data in a format that the application can easily use.</p><p>The system tracks addresses associated with the wallet and monitors the blockchain for activity related to those addresses. When a new transaction appears, the backend can quickly notify the wallet and update balances or transaction history.</p><p>By operating this infrastructure locally or on a personal server, users maintain complete control over how their wallet interacts with the Bitcoin network.</p><h2>Privacy Benefits of Running Your Own Backend</h2><p>Running a personal backend significantly improves privacy when using a Bitcoin wallet. Instead of sending public keys or address data to external servers, the wallet communicates only with the user’s own node.</p><p>This setup prevents third parties from learning which addresses belong to a specific wallet. As a result, it becomes much more difficult for external observers to track wallet balances or analyze transaction patterns.</p><p>For privacy-focused users, this level of control is one of the most important benefits of operating a personal node and backend system.</p><h2>Open Source Development</h2><p>Another key aspect of the Dojo release is its open source nature. By publishing the backend software publicly, developers allow anyone to review the code, verify how the system works, and contribute improvements.</p><p>Open source projects often benefit from community collaboration. Developers from around the world can identify potential security issues, suggest enhancements, and build additional tools that integrate with the software.</p><p>Transparency in development is especially important for financial software where trust and security are critical.</p><h2>Making Advanced Infrastructure More Accessible</h2><p>Running a Bitcoin node has historically required a certain level of technical knowledge. Dojo aims to simplify the process by providing structured tools and installation options that make the setup easier for advanced users.</p><p>The software is designed to work alongside standard Bitcoin node software while adding specialized components that support wallet functionality. Once configured, the system allows the wallet to synchronize data directly from the blockchain without exposing sensitive information to third parties.</p><p>Over time, improved documentation and community support have made it easier for users to deploy their own nodes and backend infrastructure.</p><h2>Strengthening Privacy in the Bitcoin Ecosystem</h2><p>Privacy remains one of the most important topics in the cryptocurrency world. As blockchain analysis tools become more sophisticated, users continue to seek better methods for protecting their financial data.</p><p>Tools like Dojo help strengthen the privacy of the entire ecosystem by encouraging more users to run their own nodes. The more decentralized the infrastructure becomes, the harder it is for any single entity to observe or control the network.</p><p>The introduction of Dojo 1.0 demonstrates how open source development and community collaboration can push the boundaries of financial privacy. By giving users the ability to operate their own backend infrastructure, the project takes a significant step toward a more decentralized and user-controlled Bitcoin environment.</p>

Introducing Samourai Dojo 1.0 Open Source Backend

<p>Changes in the Bitcoin payment ecosystem occasionally create compatibility issues between services, wallets, and payment processors. When standards are not followed consistently, users may encounter errors when attempting to send or receive transactions. One such issue emerged when QR codes generated by certain payment processors stopped working correctly with some Bitcoin wallets.</p><p>This notice explains why these QR codes may no longer function as expected and what users should understand about payment standards within the Bitcoin network.</p><h2>Understanding Bitcoin Payment QR Codes</h2><p>QR codes are widely used in cryptocurrency payments because they simplify the process of sending funds. Instead of manually typing a long Bitcoin address, users can scan a code that automatically fills in the payment details within their wallet application.</p><p>Most wallets rely on a standard format for these QR codes. This format includes the destination address and optional payment information such as the amount or payment label. The standard ensures that different wallets and payment services can interact seamlessly with each other.</p><p>When the format of these codes changes or diverges from the expected structure, compatibility problems can appear across the ecosystem.</p><h2>The Importance of Payment Standards</h2><p>Bitcoin has long relied on open standards that allow different applications to communicate reliably. These standards define how payment requests are structured and how wallets interpret transaction data.</p><p>The most commonly used format for QR codes in Bitcoin payments has been widely adopted for many years. Because of this broad adoption, most wallet applications are designed to recognize and process this specific format.</p><p>When a payment processor generates QR codes that do not follow this structure, wallet software may not be able to read the request properly. This can cause scanning errors or prevent the transaction from being created automatically.</p><h2>Why Some QR Codes Stopped Working</h2><p>In certain cases, payment processors began generating invoices that used a different method for constructing QR codes. Instead of producing a standard payment request format, the QR code redirected users through additional processing steps.</p><p>For wallets that rely on the standard format, these alternative structures may not be recognized as valid payment requests. As a result, scanning the QR code may fail or produce unexpected results.</p><p>This situation highlights the importance of maintaining compatibility with established Bitcoin payment protocols.</p><h2>How This Affects Wallet Users</h2><p>For everyday users, the issue may appear as a simple scanning error when attempting to pay an invoice. A wallet might display a warning message or fail to populate the payment details after scanning the QR code.</p><p>In most cases, users can still complete the payment by copying and pasting the Bitcoin address manually. However, this process is less convenient and increases the chance of user mistakes.</p><p>Wallet developers often choose to support widely accepted standards in order to maintain predictable behavior for their users.</p><h2>Maintaining Interoperability in the Bitcoin Ecosystem</h2><p>Bitcoin is built on the idea of open protocols and decentralized cooperation. Wallets, payment processors, and merchants all rely on common standards so that transactions can flow freely between different platforms.</p><p>When services diverge from these shared standards, interoperability becomes more difficult. Developers must then decide whether to modify their software to support the new format or continue enforcing established standards.</p><p>Maintaining compatibility is important not only for usability but also for preserving the open nature of the Bitcoin ecosystem.</p><h2>Looking Forward</h2><p>As the cryptocurrency industry continues to evolve, developers and service providers must work together to ensure that payment systems remain reliable and easy to use. Open standards play a key role in making this possible.</p><p>By following consistent protocols and maintaining transparency in how payment systems operate, the broader Bitcoin community can continue building tools that are secure, interoperable, and accessible to users around the world.</p><p>Understanding how payment standards work helps users navigate the ecosystem more confidently and ensures that digital transactions remain simple, secure, and dependable.</p>

BitPay QR Codes Are No Longer Valid – Important Notice

<p>Continuous development is essential for improving the usability and privacy of modern Bitcoin wallets. Each new release brings refinements that help users manage digital assets more efficiently while strengthening the protection of transaction data. One of the most notable improvements introduced in this update is a new way to create collaborative Bitcoin transactions.</p><p>The feature known as Cahoots introduces a cooperative approach to transaction creation. Instead of building a transaction entirely within a single wallet, multiple participants can work together to construct a single transaction that appears ordinary on the blockchain while offering additional privacy benefits.</p><h2>What Are Cahoots Transactions</h2><p>Cahoots transactions are built collaboratively between two or more users. Each participant contributes specific transaction data that is exchanged directly between the parties before the final transaction is broadcast to the network.</p><p>This cooperative approach changes the way transaction inputs and outputs appear on the blockchain. Because the transaction is composed through interaction between multiple wallets, it becomes significantly harder for outside observers to determine which participant controlled which coins.</p><p>The result is a transaction that blends elements from multiple parties while still remaining fully compatible with the Bitcoin protocol.</p><h2>Improving Privacy Through Collaboration</h2><p>Blockchain analysis tools often rely on statistical assumptions to trace the ownership of Bitcoin addresses. One widely used method assumes that multiple inputs in a transaction are controlled by the same entity.</p><p>Collaborative transactions weaken this assumption by introducing inputs from multiple participants. Since more than one user contributes to the transaction, observers cannot easily determine which inputs belong to the sender and which belong to another collaborator.</p><p>This simple change can significantly complicate transaction tracing techniques used by blockchain surveillance tools.</p><h2>Two Collaborative Transaction Types</h2><p>The Cahoots framework allows several types of collaborative transaction structures. Each approach is designed for a slightly different use case depending on who is participating in the payment.</p><p>One type involves the sender and receiver working together to construct a transaction that looks like a standard payment on the blockchain. Although the transaction appears ordinary, the structure hides important details about the true transfer of value.</p><p>Another type allows a third party to collaborate with the sender when making a payment to an external address. This model helps create a transaction that resembles a coordinated multi-party payment while still delivering funds to the intended destination.</p><p>Both approaches contribute to improving privacy without requiring changes to the underlying Bitcoin network.</p><h2>A More Accessible User Interface</h2><p>Earlier versions of collaborative transactions required users to manually exchange multiple QR codes in order to build the transaction. While effective, this process was primarily suited for advanced users who were comfortable with more complex workflows.</p><p>The update introduces a redesigned interface that makes the feature significantly easier to use. The new layout guides users through the process of initiating and completing collaborative transactions with fewer steps.</p><p>By simplifying the user experience, the wallet makes advanced privacy techniques accessible to a wider range of Bitcoin users.</p><h2>Expanding the Possibilities of Bitcoin Transactions</h2><p>Collaborative transaction design represents an innovative direction for Bitcoin wallet development. Rather than relying solely on traditional transaction structures, developers are exploring ways to use cooperation between users to strengthen privacy.</p><p>These techniques demonstrate how software design can expand the capabilities of the Bitcoin protocol without requiring changes to the network itself.</p><p>As wallet technology continues to evolve, collaborative transaction models may become an increasingly important tool for users who want to maintain greater control over the visibility of their financial activity.</p><h2>Looking Ahead</h2><p>The introduction of Cahoots functionality marks an important milestone in the evolution of privacy-focused wallet tools. By enabling users to construct transactions together, the wallet provides a new way to protect financial information while remaining fully compatible with the Bitcoin network.</p><p>Future development will likely continue to refine these collaborative systems, making them faster, easier to use, and more widely adopted. As the cryptocurrency ecosystem grows, innovations like Cahoots demonstrate how creative design can strengthen both privacy and usability within decentralized financial networks.</p>

Wallet Update 0.99.85 – Get in Cahoots

Landing Pages (LP)

<p><br><span style="font-size:12px;">Not all CoinJoin is created equal. Whirlpool is...</span><br>Why Mix My Coins?</p><p>Properly mixing your coins is the best way to achieve forward looking privacy in Bitcoin.</p><p>When compared to cold hard cash Bitcoin's privacy is woefully inadequate. Unlike cash, every single Bitcoin transaction is available for anyone to view, forever, on the public blockchain.</p><p>When you mix your coins what you are actually doing is <strong>breaking the link </strong>of that past public information from whatever activity takes place in the future.</p><h2>Whirlpool Stands Above The Rest</h2><p>Whirlpool has been designed to provide the strongest mix quality for the lowest price.</p><p>Not all CoinJoin technology is created equal. Whirlpool is the only CoinJoin implementation to structurally enforce certain paramaters that maintain an extremely healthy mixing environment for users.</p><p>These constraints, such as the strictly enforced requirements that: no coin in a mix has previously mixed together before; that "unmixed change" is left out of the mix transaction; and that address reuse is impossible during a mix transaction; work together to produce a strong and healty mix transaction with 100% entropy and zero deterministic links. The only CoinJoin implementation to do so.</p><h2>A Picture Is Worth 1000 Words</h2><p>The blockchain doesn't lie. Compare mix transactions of Whirlpool, Wasabi, and JoinMarket when analyzed for address reuse, deterministic links, and entity clusters.</p><h2>CoinJoin Comparison Chart</h2><h3>Non Custodial</h3><p>A Non Custodial architecture ensures that the user maintains control of their private keys at all times, eliminating the risk of a trusted third party stealing funds or being hacked.</p><p>All Samourai software, including Whirlpool CoinJoin is built on a first principle of non custody. This keeps the user safe from counterparty risk and sovereign in their total ownership of their assets.</p><h3>Connect Your Full Node</h3><p>Connecting to your own full node allows you to privately retrieve balance and transaction history</p><p>Whirlpool allows you to connect your full node over a Tor hidden service thanks to a seamless tie in to our Dojo software powered by Bitcoin Core.</p><h3>100% Entropy Mixes</h3><p>Entropy is a measurable demonstration of the amount of confusion that exists in a transaction when mapping inputs to outputs. 100% Entropy means that the transaction contains the maximum amount of confusion that can exist for that transaction.</p><p>Whirlpool is the only CoinJoin implementation that enforces 100% entropy mix transactions. Each Whirlpool mix transaction looks like every other and contains the exact same amount of entropy and combinations going back to the Genesis Mix.</p><h3>Change Output Segregation</h3><p>When you create a CoinJoin transaction a change output is created that is unmixed. A well designed mixing protocol will deal with these outputs properly and segregate them</p><p>Whirlpool is different than most other CoinJoin implementations by segregating the unmixed change output away from the mix transaction. These change outputs are deterministically linked back to the user and should be treated with caution</p><p>Whirlpool CoinJoin built into Samourai Wallet automatically handles the unmixed change in a safe way and the Whirlpool architecture will not allow these outputs in a mix transaction.</p><h3>Address Reuse Prevented</h3><p>Address Reuse is a very harmful behavior that can deanonymise your mix transactions as well as reduce the overall anonimity set of the CoinJoin implementation.</p><p>Address Reuse is the most common privacy mistake users make. It is also surprisingly common in other CoinJoin implementations. This most basic privacy concern is prevented within the Whirlpool CoinJoin protocol, and users can confidently mix their coins knowing that addresses will not be reused.</p><p>Samourai Wallet includes additional protection against Address Reuse that the user might be initiating accidentally.</p><h3>No Previously Seen Coins In Mixes</h3><p>Preventing coins that have been previously mixed together enforces a fresh supply of liquidity is maintained, helps increase sybil attack resistance, and prevents other hooks for analysis.</p><p>Whirlpool CoinJoin automatically prevents coins that have previously been seen together on the blockchain from mixing with each other again. This prevents users from mixing with the same people over and over again.</p>

The Only CoinJoin To Break ALL Deterministic Links

<p>Bitcoin was designed to provide individuals with full control over their financial transactions. However, the way payments are commonly shared and received can sometimes create unnecessary privacy risks. One of the most common issues occurs when a single Bitcoin address is reused for multiple transactions.</p><p>Reusable payment codes were introduced to solve this problem while making the process of sending and receiving funds much easier. By allowing users to share a single code that automatically generates new payment addresses for each transaction, this technology combines convenience with improved privacy.</p><h2>The Problem With Reusing Bitcoin Addresses</h2><p>Many users publish a single Bitcoin address on websites, donation pages, or social profiles to receive payments. While this approach is simple, it also exposes the entire transaction history associated with that address.</p><p>Anyone who discovers that address can analyze the blockchain and see incoming payments, outgoing transfers, and total balances connected to it. This level of transparency may create unwanted attention and reduce financial privacy.</p><p>The alternative approach is to generate a new address for each payment request. While this method improves privacy, it requires constant communication between the sender and recipient to exchange new addresses every time a payment is made.</p><p>Reusable payment codes were designed to eliminate this trade-off.</p><h2>A Simpler Way to Receive Payments</h2><p>Reusable payment codes allow a user to share a single permanent identifier instead of sending a new Bitcoin address for every transaction. The code acts as a communication bridge between two wallets.</p><p>When someone sends a payment using the code, the wallet software automatically derives a unique Bitcoin address for that specific transaction. Even though the same code is used repeatedly, each payment still goes to a different address.</p><p>This means that outside observers cannot easily link all payments to a single public address.</p><h2>How Payment Codes Improve Privacy</h2><p>The main benefit of reusable payment codes is that they prevent address reuse while still allowing users to share a simple payment identifier. Instead of publishing a permanent Bitcoin address, a user can share a payment code publicly without revealing their balance or transaction history.</p><p>Behind the scenes, the wallets of both participants work together to derive private transaction addresses. Each payment uses a different address that only the sender and receiver can recognize.</p><p>As a result, blockchain observers cannot easily determine how many payments were sent to the same person.</p><h2>Making Bitcoin Payments More User Friendly</h2><p>Beyond privacy improvements, payment codes also make Bitcoin transactions easier to manage. Instead of copying long wallet addresses every time a payment is needed, users can save payment codes as contacts within their wallet.</p><p>This creates an experience similar to modern digital payment apps where users simply select a contact and send funds. The technical complexity of address generation happens automatically in the background.</p><p>By simplifying how payments are handled, reusable codes help reduce mistakes and improve the overall usability of Bitcoin wallets.</p><h2>A Step Toward Better Wallet Design</h2><p>Wallet developers constantly search for ways to make cryptocurrency easier to use without sacrificing security or privacy. Reusable payment codes represent one step toward that goal.</p><p>They allow Bitcoin users to share payment details safely, avoid exposing sensitive transaction history, and reduce the complexity of repeated payments. For people who receive frequent transfers, donations, or recurring payments, this technology can dramatically simplify the payment process.</p><p>At the same time, the underlying privacy protections remain intact.</p><h2>Looking Ahead</h2><p>As Bitcoin adoption grows, privacy-focused wallet features will continue to evolve. Tools like reusable payment codes show how thoughtful design can address long-standing usability challenges while protecting financial data.</p><p>By introducing this functionality, wallet developers aim to provide a better balance between convenience and privacy. Users gain a simple way to receive payments while still maintaining control over how their transaction information appears on the blockchain.</p>

Why We’re Bringing Reusable Payment Codes to the Wallet

<p>As Bitcoin continues to grow into a global financial network, it inevitably attracts attention from regulators and government institutions. Digital currencies challenge traditional financial systems by allowing individuals to transfer value without relying on centralized intermediaries. This shift toward decentralized finance has sparked ongoing debates about privacy, regulation, and the role of government oversight.</p><p>The phrase “the bureaucrats are coming” reflects a broader concern within the cryptocurrency community. Many developers and users believe that increased regulation may affect how individuals interact with decentralized technologies, particularly when it comes to financial privacy.</p><h2>The Rise of Blockchain Surveillance</h2><p>Bitcoin’s blockchain is transparent by design. Every transaction is recorded on a public ledger that anyone can examine. While this transparency helps maintain trust and security within the network, it also creates opportunities for advanced analysis.</p><p>Specialized companies and government agencies have developed tools that attempt to analyze transaction flows and identify patterns within blockchain data. These analytical techniques aim to trace funds, cluster addresses, and identify possible links between different transactions.</p><p>For privacy-focused users, the growth of blockchain surveillance raises important questions about financial autonomy and the right to transact without unnecessary monitoring.</p><h2>Why Privacy Matters in Digital Money</h2><p>Financial privacy has long been considered a fundamental component of economic freedom. In traditional financial systems, individuals expect that their everyday transactions will not be publicly visible to the entire world.</p><p>Bitcoin introduced a different model where transaction data is publicly available but identities are not directly attached to addresses. However, repeated address usage or behavioral patterns can sometimes reveal connections between transactions.</p><p>Privacy-focused tools and wallet features aim to reduce this exposure by improving how transactions are structured and how wallet software manages address generation.</p><h2>Regulatory Pressure on Cryptocurrency Tools</h2><p>As cryptocurrency adoption expands, governments around the world are exploring ways to regulate digital asset platforms and services. These discussions often focus on issues such as compliance requirements, reporting obligations, and monitoring of financial activity.</p><p>Developers who build privacy-oriented tools sometimes find themselves at the center of these debates. Some policymakers argue that stronger oversight is necessary to prevent misuse of digital currencies, while others warn that excessive regulation could undermine the open nature of decentralized networks.</p><p>The balance between innovation and regulation remains one of the most important discussions in the cryptocurrency industry.</p><h2>Defending Open Financial Technology</h2><p>For many developers in the Bitcoin ecosystem, creating privacy-focused tools is not about avoiding accountability but about protecting fundamental user rights. Decentralized software allows individuals to manage their own funds without relying on centralized authorities.</p><p>Open source development also ensures that software can be inspected, audited, and improved by the community. Transparency in code helps build trust while allowing innovation to continue at a rapid pace.</p><p>As new regulatory frameworks emerge, developers and users must work together to ensure that decentralized technology remains accessible and secure.</p><h2>The Ongoing Debate About Financial Freedom</h2><p>The tension between regulation and innovation is not unique to cryptocurrency. Throughout the history of technology, new systems that disrupt existing power structures often face scrutiny from institutions.</p><p>Bitcoin and other decentralized networks challenge traditional models of financial control by giving individuals the ability to transact directly with one another. This shift naturally raises questions about governance, oversight, and responsibility.</p><p>Whether through regulation, technological development, or community collaboration, the future of digital finance will likely be shaped by ongoing dialogue between developers, policymakers, and users.</p><h2>Looking Toward the Future</h2><p>The growth of Bitcoin has introduced a new conversation about the relationship between privacy and transparency in financial systems. While regulation may continue to evolve, the underlying technology remains open and decentralized.</p><p>Developers will continue to build tools that improve privacy, security, and usability for cryptocurrency users around the world. At the same time, governments and institutions will continue to evaluate how these technologies fit within existing legal frameworks.</p><p>The discussion surrounding privacy and regulation is far from over. As decentralized finance continues to develop, the balance between innovation and oversight will remain one of the defining challenges of the digital financial era.</p>

The Bureaucrats Are Coming

<p>Bitcoin transactions usually confirm quickly when the correct transaction fee is included. However, during periods of high network activity, transactions that include low fees can remain unconfirmed for a long time. This situation can be frustrating for both senders and recipients who are waiting for a payment to be finalized.</p><p>Bitcoin Afterburner was introduced as a specialized tool designed to solve this problem. By applying advanced transaction fee techniques, the tool helps accelerate unconfirmed transactions and improves the chances that they will be included in the next available blocks.</p><h2>The Challenge of Stuck Bitcoin Transactions</h2><p>The Bitcoin network processes transactions based on a fee market. When many users are broadcasting transactions at the same time, miners prioritize the ones that include higher fees.</p><p>If a transaction is sent with a fee that is too low relative to current network conditions, it may remain in the mempool for an extended period. During congestion, thousands of transactions compete for limited block space, and lower-fee transactions are often pushed to the back of the queue.</p><p>For users who need faster confirmation, waiting indefinitely is not always an acceptable solution.</p><h2>A Tool Designed to Boost Transaction Fees</h2><p>Bitcoin Afterburner was designed as a practical solution for accelerating delayed transactions. Instead of relying on mining pool accelerators or centralized services, the tool uses a technique that increases the effective fee of a transaction.</p><p>The process works by creating a new transaction connected to the original one. By attaching a higher fee to the new transaction, miners become incentivized to confirm both transactions together in a single block.</p><p>This approach works within the standard rules of the Bitcoin protocol and does not require cooperation from a specific mining pool.</p><h2>Using the Child-Pays-for-Parent Method</h2><p>At the core of Bitcoin Afterburner is the Child-Pays-for-Parent mechanism. In this method, a second transaction spends outputs from an earlier unconfirmed transaction while including a higher miner fee.</p><p>Because miners evaluate the combined fees of related transactions, they are motivated to confirm both transactions simultaneously. The higher combined fee effectively increases the priority of the original payment.</p><p>This technique allows users to recover transactions that might otherwise remain stuck for many hours or even days.</p><h2>Compatibility With Multiple Wallets</h2><p>One of the most useful aspects of Bitcoin Afterburner was its compatibility with many different Bitcoin wallets. The tool supported standard hierarchical deterministic wallet structures, making it possible for users to import their wallet information and analyze unconfirmed transactions.</p><p>Once a transaction was detected, the user could review the pending payment and apply a higher fee through the acceleration process.</p><p>This flexibility allowed the tool to serve as a universal solution for many Bitcoin users, regardless of which wallet software they originally used.</p><h2>Improving User Control Over Fees</h2><p>Fee management has always been an important part of the Bitcoin user experience. As the network matured and transaction volume increased, choosing the right fee became more complex.</p><p>Tools like Bitcoin Afterburner were developed to give users greater control over their transactions. Instead of relying solely on automatic fee estimation, users could actively intervene when network conditions changed.</p><p>By providing a simple interface for fee boosting, the tool helped users resolve transaction delays quickly and efficiently.</p><h2>A Practical Solution for Network Congestion</h2><p>During periods of heavy network activity, transaction acceleration tools can play an important role in maintaining usability. They help prevent payment delays and ensure that urgent transfers can still be confirmed in a reasonable timeframe.</p><p>Bitcoin Afterburner demonstrated how wallet developers could create practical solutions that work within the existing Bitcoin protocol. Rather than modifying the network itself, the tool leveraged established transaction mechanics to improve confirmation reliability.</p><p>As the Bitcoin ecosystem continues to evolve, innovations like fee-boosting tools highlight the importance of flexible wallet design and better transaction management strategies.</p>

A bitcoin wallet for the streets

Thwart blockchain based surveillance and censorship

Thwart blockchain based surveillance and censorship

Take it anywhere, even offline

Be your own Swiss Bank

RoninDojo

DOJO
A self hosted full node server that automatically syncs with your Samourai Wallet. Available today, free and open source.

Whirlpool
Break the link of your bitcoins' prior history and stop blockchain surveillance before it starts.

A bitcoin wallet for the streets

Thwart blockchain based surveillance and censorship

Thwart blockchain based surveillance and censorship

Take it anywhere, even offline

Be your own Swiss Bank

RoninDojo

DOJOA self hosted full node server that automatically syncs with your Samourai Wallet. Available today, free and open source.

WhirlpoolBreak the link of your bitcoins' prior history and stop blockchain surveillance before it starts.

DOJO
A self hosted full node server that automatically syncs with your Samourai Wallet. Available today, free and open source.

Whirlpool
Break the link of your bitcoins' prior history and stop blockchain surveillance before it starts.