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

For more information, as well as an immediately useable, binary version of the Bitcoin Unlimited software, see https://www.bitcoinunlimited.info/download, or read the original whitepaper.

Bitcoin Unlimited is an implementation of the Bitcoin client software that is based on Bitcoin Core. However, Bitcoin Unlimited has a very different philosophy than Core.

It follows a philosophy and is administered by a formal process described in the Articles of Federation. In short, we believe in market-driven decision making, emergent consensus, and giving our users choices.

For info on installing Bitcoin Unlimited see INSTALL.md

For info on building Bitcoin Unlimited from sources, see

• Dependencies
• Unix Build Notes
• Unix Build Notes (RPM)
• Windows Build Notes
• OpenBSD Build Notes
• macOS Build Notes
• Deterministic macOS DMG Notes
• Gitian Building Guide

They are not complete guides, but include notes on the necessary libraries, compile flags, etc.

• Running large unconfirmed transaction chain limits
• Running an electron cash protocol server
• Getting the most out of Xtreme thinblocks
• Setting up an Xpedited Relay Network
• Tor Support
• Init Scripts (systemd/upstart/openrc)
• Using Bitcoin Unlimited for Mining

• Developer Notes
• Contributing
• BUIP, BIP and Bitcoin Cash Specifications
• Bitcoin Unlimited Improvement Proposal Archive
• Multiwallet Qt Development
• Release Notes
• Release Process
• Translation Process
• Translation Strings Policy
• Unit Tests
• Unauthenticated REST Interface
• Shared Libraries
• Assets Attribution
• Files
• Fuzz-testing

• Issue Tracker
• The Bitcoin Forum
• Reddit /r/btc
• Reddit /r/bitcoin_unlimited
• Slack Channel

Bitcoin Unlimited is released under the terms of the MIT software license. See COPYING for more information. This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit. This product includes cryptographic software written by Eric Young ([email protected]), and UPnP software written by Thomas Bernard.