TECHNICAL

Nostr Wallet Connect is the USB-C Connector of Bitcoin Wallets

Nostr Wallet Connect is the USB-C Connector of Bitcoin Wallets

Bitcoin Magazine Nostr Wallet Connect is the USB-C Connector of Bitcoin Wallets Open Protocols Drive Innovation NWC — Nostr Wallet Connect — has an impressive technological lineage. Digital and physical connectors such as cables we use, or internet protocols, work best when they’re open and standardized. You don’t need permission to design a device that […]

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Know-Your-Customer: The Quiet Kill Switch

Know-Your-Customer: The Quiet Kill Switch

Bitcoin Magazine Know-Your-Customer: The Quiet Kill Switch The know-your-customer (KYC) threat isn’t coming. It’s already here, and it didn’t arrive through a nationwide ban or an emergency executive order. It quietly showed up with a checkbox and a Terms of Service agreement. While the influencers make noise about CBDCs and paper bitcoin, the real control

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Bitcoin Layer 2: Sidechains

Bitcoin Layer 2: Sidechains

Bitcoin Magazine Bitcoin Layer 2: Sidechains The original concept of a Bitcoin sidechain was proposed by Adam Back, Matt Corallo, Luke Dashjr, Mark Friedenbach, Gregory Maxwell, Andrew Miller, Andrew Poelstra, Jorge Timón, and Pieter Wuille, who all went on to found Blockstream, in 2014.  The idea was proposed to allow a more liberal development environment,

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The Spiral Scroll: Wallet Clustering Basics

The Spiral Scroll: Wallet Clustering Basics

Bitcoin Magazine The Spiral Scroll: Wallet Clustering Basics The Bitcoin transaction graph has various observable patterns, with wallet clustering of highest importance. Some of these patterns have been studied and used to link coins from the same wallet, both in theory and practice. Every transaction consists of a list of inputs (where the sats are

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Bitcoin Layer 2: Statechains

Bitcoin Layer 2: Statechains

Bitcoin Magazine Bitcoin Layer 2: Statechains Statechains are an original second layer protocol originally developed by Ruben Somsen in 2018, depending on the eltoo (or LN Symmetry) proposal. In 2021 a variation of the original proposal, Mercury, was built by CommerceBlock. In 2024, a further iteration of the original Mercury scheme was built, Mercury Layer. 

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The Bitcoin Mempool: Private Mempools

The Bitcoin Mempool: Private Mempools

Bitcoin Magazine The Bitcoin Mempool: Private Mempools In the last Mempool article, I went through the dynamics of transaction propagation when different nodes on the network are running different mempool relay policies. In this piece I’ll be looking at the dynamics of private mempools, and the implications that has for the utility of the public

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The Bitcoin Mempool: Relay Network Dynamics

The Bitcoin Mempool: Relay Network Dynamics

Bitcoin Magazine The Bitcoin Mempool: Relay Network Dynamics In the last Mempool article, I went over the different kinds of relay policy filters, why they exist, and the incentives that ultimately decide how effective each class of filter is at preventing the confirmation of different classes of transactions. In this piece I’ll be looking at

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How Zeus is Redefining Bitcoin with Cashu Ecash Integration

How Zeus is Redefining Bitcoin with Cashu Ecash Integration

Bitcoin Magazine How Zeus is Redefining Bitcoin with Cashu Ecash Integration The U.S.-based Bitcoin and Lightning mobile wallet Zeus recently announced an alpha-release integration of Cashu. The move marks the first integration of ecash into a popular Bitcoin wallet, breaking new ground for potential user adoption to Bitcoin. Cashu is a hot new implementation of

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OP_RETURN Limits: Bitcoin’s Battle Over Arbitrary Data

OP_RETURN Limits: Bitcoin’s Battle Over Arbitrary Data

Bitcoin Magazine OP_RETURN Limits: Bitcoin’s Battle Over Arbitrary Data An OP_RETURN debate flared up in the Bitcoin industry in recent weeks and has by now invaded most conversation spaces within the industry. The topic is rich and complex, and many people have strong opinions on the matter. OP_RETURN is an opcode in Bitcoin’s scripting language

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