Satoshi Nakamoto is the name used by the presumed pseudonymous[1][2][3][4] person or persons who developed bitcoin, authored the bitcoin white paper, and created and deployed bitcoin's original reference implementation.[5] As part of the implementation, Nakamoto also devised the first blockchain database.[6] In the process, Nakamoto was the first to solve the double-spending problem for digital currency using a peer-to-peer network.