Glossary

Bitcoind

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Bitcoind is the name of the software service that runs a Bitcoin node and wallet. This service comes with Bitcoin Core’s software and is used by most nodes on the network. The ‘d’ in bitcoind is short for daemon, which is the name of a service that runs in the background of an operating system.

Related Terms
Bitcoin Core
Bitcoin Core is the reference implementation for the Bitcoin source code, meaning all other implementations look to Core for guidance. Bitcoin Core was started by Satoshi Nakamoto when they released the first version of Bitcoin's source code.
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Bitcoin Node
A node is a discrete member of a network which interacts with other nodes to form the network. Bitcoin nodes store and validate the blockchain and exchange blocks and transactions with one another in order to maintain consensus.
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Wallet
A wallet is a piece of software which generates and stores public and private keys, allowing users to send, receive, and store bitcoin.
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Bitcoin-Qt
Bitcoin-Qt is the name of the graphical user interface or GUI which comes as part of the Bitcoin Core software package.
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