Inside Bitcoin
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The code behind the network, with room to understand it.
Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.
1\mainpage notitle3\section intro_sec Introduction5This is the developer documentation of the reference client for an experimental new digital currency called Bitcoin,6which enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate7with no central authority: managing transactions and issuing money are carried out collectively by the network.9The software is a community-driven open source project, released under the MIT license.11See https://github.com/bitcoin/bitcoin and https://bitcoincore.org/ for further information about the project.13\section Navigation14Use <a href="modules.html"><code>Modules</code></a>, <a href="namespaces.html"><code>Namespaces</code></a>, <a href="classes.html"><code>Classes</code></a>, or <a href="files.html"><code>Files</code></a> at the top of the page to start navigating the code.
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Bitcoin Core source © its contributors, distributed under the MIT license. Original notices and bundled third-party licenses are retained in the source tree.