Satoshi Nakamoto is the name used by the unknown person or people who designed bitcoin and created its original reference implementation. As part of the implementation, they also devised the first blockchain database. In the process they were the first to solve the double-spending problem for digital currency. They were active in the development of bitcoin up until December 2010.
On a P2P Foundation profile, Nakamoto claimed to be a man living in Japan, born on 5 April 1975. Speculation about the true identity of Nakamoto has mostly focused on a number of cryptography and computer science experts of non-Japanese descent, living in the United States and Europe. Satoshi Nakamoto also created the bitcointalk forum, posted the first message in 2009 under the pseudonym satoshi.
Characteristics and identity
Nakamoto has not disclosed any personal information when discussing technical matters. He provided some commentary on banking and fractional-reserve banking. On his P2P Foundation profile as of 2012, Nakamoto claimed to be a 37-year-old male who lived in Japan,but some speculated he was unlikely to be Japanese due to his use of perfect English and his bitcoin software not being documented or labelled in Japanese.
Occasional British English spelling and terminology (such as the phrase “bloody hard”) in both source code comments and forum postings led to speculation that Nakamoto, or at least one individual in the consortium claiming to be him, was of Commonwealth origin.
Stefan Thomas, a Swiss coder and active community member, graphed the time stamps for each of Nakamoto’s bitcoin forum posts (more than 500); the resulting chart showed a steep decline to almost no posts between the hours of 5 a.m. and 11 a.m. Greenwich Mean Time. As this pattern held true even on Saturdays and Sundays, it suggested that Nakamoto was asleep at this time.
Nakamoto’s initial email to Dai is dated
22 August 2008; the metadata for this PDF (
pdftk bitcoin.pdf dump_data) yields as the
CreationDate the value
20081003134958-07'00' – this implies 3 October 2008 or a bit over a month later, which is consistent with the local date mentioned in the Cypherpunk mailing list email. This is an earlier draft than the final draft on
bitcoin.org, which is dated
20090324113315-06'00' or 24 March 2009; the timezone differs: −7 vs −6.
Gavin Andresen has said of Nakamoto’s code: “He was a brilliant coder, but it was quirky”.
There is still doubt about the real identity of Satoshi Nakamoto.