35 docs tagged with "privacy"

Exploration of the intersection between artificial intelligence and Bitcoin, covering decentralized AI, Lightning payments for AI services, and the risks of AI centralization.

Azteco is a bitcoin voucher system for low-KYC onboarding. Buy a printed or digital voucher with cash or card, then redeem to any bitcoin address with no account registration.

Bisq is a decentralized, peer-to-peer exchange for buying and selling bitcoin with national currencies or other cryptocurrencies. No account creation, no KYC, no central server — trades are coordinated over Tor and settled via 2-of-2 multisig escrow with a third-party mediator.

Bitcoin Knots is an enhanced full-node implementation of Bitcoin, maintained by Luke Dashjr. It builds on Bitcoin Core with additional privacy, decentralization, and mining-related features.

Comparison of Umbrel, StartOS, RaspiBlitz, myNode, RoninDojo, and bare-metal setups for running a Bitcoin + Lightning node at home.

Bitrefill sells gift cards, mobile top-ups, and bill-pay vouchers for bitcoin and Lightning payments. It bridges the gap between the bitcoin economy and traditional retail.

Cashu is a free and open-source Chaumian ecash system built for Bitcoin. It lets users hold and transfer ecash tokens offline, settling against the Lightning Network when needed. Nobody needs to know who you are, how much you hold, or with whom you transact.

Explanation of Chaumian eCash principles, blind signatures, and modern implementations like Cashu and Fedimint for private, custodial or federated ecash on Bitcoin.

Directory and map of Bitcoin ATMs worldwide. Use to locate nearby machines for cash-to-bitcoin purchases.

A user-controlled AI filter for social media feeds. Developed by Ted Thayer at Pleb Lab, Feed Filter restores "mental sovereignty" by letting users algorithmically control which posts they see, countering engagement-optimized algorithms that prioritize rage and conflict.

Synthesized framework for living on the Bitcoin standard: acquisition rails (KYC and non-KYC), self-custody hierarchy, circular economy spending, and recursive onboarding — drawn from Round Rock Bitcoiners meetups.

HodlHodl is a non-custodial, peer-to-peer bitcoin exchange platform. Unlike Bisq, it is web-hosted rather than fully decentralized, but it remains non-custodial through 2-of-3 multisig escrow.

Decentralized CoinJoin marketplace. Uses a maker-taker model where liquidity providers (makers) earn fees for providing inputs to CoinJoin transactions, while privacy seekers (takers) pay for the service.

Overview of Lightning Network architecture, channel management, routing, Bolt 12 offers, and trade-offs versus on-chain and other Layer 2 solutions.

Survey of mesh networking projects (GoTenna, LoRaWAN, Reticulum) for Bitcoin transaction propagation and resilience in disconnected or censored environments.

Note: This presentation also has interactive slide-by-slide pages with key takeaways and SpeakerDeck links where available.

Methods for acquiring Bitcoin without identity verification including Bisq, RoboSats, HodlHodl, Azteco vouchers, Bitcoin ATMs, and in-person trades.

Introduction to the Nostr protocol for censorship-resistant social networking, including clients, relays, NIPs, and integration with Lightning via Zaps.

Web-based Cashu ecash wallet. Enables users to hold and transfer Chaumian ecash tokens backed by Lightning Network bitcoin.

Explanation of PayJoin (BIP-78) interactive transactions for improved on-chain privacy, wallet support, and coordination with receiver collaboration.

Open-source SDK for building Payjoin (BIP 78) functionality into Bitcoin wallets and applications. Maintained by Dan Gould.

Comparison of peer-to-peer Bitcoin exchanges: Bisq, RoboSats, HodlHodl, LocalBitcoins (deprecated), and emerging decentralized order books.

Continuum of Bitcoin privacy from basic hygiene (address reuse avoidance, Tor) to advanced techniques (CoinJoin, Silent Payments, lightning, Nostr) — matched to user capability and threat model.

Modular compositions of tools for on-chain, Lightning, and metadata privacy — including CoinJoin, Silent Payments, Tor, and Nostr/SSH isolation.

Modular on-chain, Lightning, and metadata privacy stack compositions — compares CoinJoin, Silent Payments, Tor, Nostr, and SSH isolation approaches for different threat models.

RoboSats is a peer-to-peer exchange for buying and selling bitcoin using Lightning Network payments. It operates entirely over Tor and uses temporary robot identities, meaning users do not accumulate persistent trade history or reputation.

Privacy-focused Bitcoin node operating system. On-chain only, with integrations for Whirlpool (CoinJoin) and Bisq.

Privacy-focused Bitcoin wallet for Android, built around on-chain transaction privacy. The project was the origin of several privacy tools later adopted across the ecosystem.

Sparrow Wallet is a desktop Bitcoin wallet focused on privacy, security, and flexibility. It supports single-sig and multisig setups and is designed for users who want full control over their coins and connections.

StartOS (formerly Start9OS) is a Debian-based operating system designed specifically for self-hosting Bitcoin and Lightning infrastructure. It packages complex services into one-click installs with automatic Tor and LAN access.

Stonewall is a single-user privacy feature in Samourai Wallet that creates transactions resembling mini CoinJoins but without multiple parties. It confuses chain analysis heuristics.

Stowaway is a collaborative transaction privacy feature in Samourai Wallet based on PayJoin (BIP-78). Two users construct a transaction together, breaking the common-input-ownership heuristic.

Privacy-focused Bitcoin desktop wallet with built-in CoinJoin coordination by default. Uses the WabiSabi credential protocol for CoinJoin transactions.

Matched privacy stack recommendations for iOS and Android based on threat model — from casual user to high-risk scenarios, covering wallets, networking, and communication.

Whirlpool is a zero-link CoinJoin implementation developed by Samourai Wallet. It breaks deterministic links between inputs and outputs, improving on-chain privacy.