Bitcoin Core: Reference Bitcoin network implementation
Reference implementation of the Bitcoin protocol that connects to the peer-to-peer network for block validation.
Learn more about Bitcoin Core
Bitcoin Core is the reference implementation of the Bitcoin cryptocurrency protocol, written in C++. It connects to the Bitcoin peer-to-peer network to download, validate, and relay blocks and transactions according to the consensus rules. The software includes a full node implementation that maintains a complete copy of the blockchain, along with wallet functionality and an optional graphical user interface. Bitcoin Core serves as the foundation for the Bitcoin network and is used by miners, developers, and users who require full validation of the blockchain.
Full Validation
Downloads and validates every block and transaction in the Bitcoin blockchain according to consensus rules. Provides complete verification without relying on third parties.
Reference Implementation
Serves as the authoritative implementation of the Bitcoin protocol. Other Bitcoin software implementations use Bitcoin Core as the standard for compatibility and consensus rule interpretation.
P2P Network Node
Participates directly in the Bitcoin peer-to-peer network by relaying transactions and blocks. Contributes to network decentralization and resilience.
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