Bitcoin was invented by a person or group using the pseudonym Satoshi Nakamoto. Nakamoto published the original Bitcoin white paper titled "Bitcoin: A Peer-to-Peer Electronic Cash System" in 2008 and developed the first version of the Bitcoin software, launching the network in January 2009 by mining the genesis block

. The true identity of Satoshi Nakamoto remains unknown and has been the subject of much speculation. Nakamoto was active in Bitcoin's development until around 2010 and then disappeared from public communication

. Despite numerous investigations, no conclusive proof has emerged about who Nakamoto really is, and the name is widely regarded as a pseudonym

. Nakamoto solved the critical problem of "double-spending" in digital currency by introducing a decentralized timestamp server using proof-of-work, which underpins Bitcoin's blockchain technology

. This innovation allowed Bitcoin to function without a central authority, making it the first successful decentralized digital currency

. In summary, Bitcoin was invented by Satoshi Nakamoto, a pseudonymous figure or group whose real identity remains a mystery, but who fundamentally changed the landscape of digital currency with the creation of Bitcoin and its underlying blockchain technology