Open Source C Bitcoin Software

c-lightning is a a BOLT-compliant Lightning implementation by Blockstream [2] written in C language. Version 1 of c-lightning was released on August 8th, 2015, and has since been under active beta development. c-lightning runs on Linux. The Lightning Network is an off-chain, routed payment channel network built on top of the Bitcoin blockchain. The network consists of nodes connected by peer-to-peer channels. This allows low cost, near-instant payments to be trustlessly routed across the network via connected nodes. On top of complying with all BOLT standards, c-lightning is developing an architecture for plugins. Plugins can be built to extend the c-lightning command line API. There are a number of developer tools, libraries and plugins that exist for the c-lightning implementation.

Ravencoin is a protocol based on a fork of the Bitcoin code which adds features specifically focused on allowing tokens to be issued on the Ravencoin blockchain. These tokens can have whatever properties the issue of the token decides - so they can be limited in quantity, named, and be issued as securities or as collectibles. Ravencoin is a digital peer-to-peer network that aims to implement a use case-specific blockchain, designed to efficiently handle one specific function: the transfer of assets from one party to another. Built on a fork of the Bitcoin code, Ravencoin was launched on January 3rd, 2018, and is a truly open source project (no ICO or masternodes). It focuses on building a useful technology, with a strong and growing community. The Ravencoin project is launched based on the hard work and continuous effort of over 400 Bitcoin developers who made over 14,000 commits over the life to date of the Bitcoin project.

Phoenix is a Bitcoin wallet developed by ACINQ, that allows you to send and receive bitcoins securely over the Lightning Network. It is self-custodial, which means that you hold the keys of the wallet. It provides a simple and clean UX. Thanks to native Lightning support, payments are faster and cheaper. This wallet is self-custodial. It means that, when creating a new wallet, a 12-words recovery phrase is generated. Only you have it. It is your responsibility to make a backup of that recovery phrase. It gives full access to your funds, so do not share it with anyone. If you lose the recovery phrase, your funds are lost.

Learning Bitcoin from the Command Line is a tutorial for working with Bitcoin (and Lightning) that teaches direct interaction with the servers themselves, as the most robust and secure way to begin cryptocurrency work. This is a draft in progress, so that I can get some feedback from early reviewers. It is not yet ready for use. Learning Bitcoin from the Command Line is a project of Blockchain Commons. We are proudly a "not-for-profit" social benefit corporation committed to open source & open development. Our work is funded entirely by donations and collaborative partnerships with people like you. Every contribution will be spent on building open tools, technologies, and techniques that sustain and advance blockchain and internet security infrastructure and promote an open web. We are also tentatively considering what we could include in a v3.0 of the course.

Metrocoin is an experimental new digital currency that enables instant payments to anyone, anywhere in the world. Metrocoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Metrocoin is also the name of the open source software which enables the use of this currency.