Inside Bitcoin
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Opening the selected file…
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.
1Bitcoin Core2=============4Intro5-----6Bitcoin is a free open source peer-to-peer electronic cash system that is7completely decentralized, without the need for a central server or trusted8parties. Users hold the crypto keys to their own money and transact directly9with each other, with the help of a P2P network to check for double-spending.12Setup13-----14Unpack the files into a directory and run bitcoin-qt.exe.16Bitcoin Core is the original Bitcoin client and it builds the backbone of the network.17However, it downloads and stores the entire history of Bitcoin transactions;18depending on the speed of your computer and network connection, the synchronization19process can take anywhere from a few hours to a day or more.21See the bitcoin wiki at:22https://en.bitcoin.it/wiki/Main_Page23for more help and information.
Independent explanations by MyBitcoinExplorer. Not affiliated with or endorsed by Bitcoin Core. Guides are educational and do not replace the source or its tests.
Bitcoin Core source © its contributors, distributed under the MIT license. Original notices and bundled third-party licenses are retained in the source tree.