The cryptocurrency was invented in 2008 by an unknown person or group of people using the name Satoshi Nakamoto. The currency began use in 2009 when its implementation was released as open-source software. Bitcoins are created as a reward for a process known as mining.

White paper: "Bitcoin: A Peer-to-Peer Electronic ...

Original author(s): Satoshi Nakamoto

Code repository: github.com/bitcoin/bitcoin

Implementation(s): Bitcoin Core