Satoshi Nakamoto is the name used by the person, or group of people, who created Bitcoin (BTC). Under that name the creator published the Bitcoin whitepaper on 31 October 2008, released the first version of the software in January 2009 and led its development until stepping back in late 2010. The last widely accepted messages from Satoshi date from April 2011. Their real identity has never been established.
Satoshi's design combined earlier ideas, including proof of work, public-key cryptography and timestamped chains of data, into the first cryptocurrency that solved the double-spend problem without a trusted central party. The smallest unit of bitcoin, the satoshi, is named after the creator. Satoshi released the software as open-source code, which let others take over once the creator left.
Satoshi Nakamoto in plain terms
Imagine an author who publishes a famous book under a pen name, answers readers' letters for two years, hands the manuscript to a few trusted editors and then simply stops writing back. The book continues to be printed and revised, and its rules are followed worldwide, but nobody knows who wrote it.
That is roughly Satoshi's story. The name is attached to the plan for Bitcoin and its first code, but the network does not depend on its creator. It runs on rules that anyone can check and on software that hundreds of other developers now maintain.
White paper and launch
On 31 October 2008 Satoshi announced "Bitcoin: A Peer-to-Peer Electronic Cash System" on a cryptography mailing list. The nine-page paper described a peer-to-peer network in which transactions are grouped into blocks and linked by hashes, with miners competing through proof of work to extend the longest chain.
On 3 January 2009 Satoshi mined the genesis block, the first block of the Bitcoin blockchain. Its coinbase data contains a headline from The Times of that day: "Chancellor on brink of second bailout for banks", widely read as a comment on the banking crisis. Version 0.1 of the software followed on 9 January 2009, and on 12 January Satoshi sent 10 bitcoins to the cryptographer Hal Finney in the first known bitcoin transfer between two people.
Withdrawal from the project
Through 2009 and 2010 Satoshi wrote code, answered questions on mailing lists and the Bitcointalk forum, and set early policies, including the cap of 21 million bitcoins and the four-yearly halving of the block subsidy written into the software. In the second half of 2010 Satoshi passed more responsibility to other developers, especially Gavin Andresen. Satoshi's last public forum posts date from December 2010. In an email to developer Mike Hearn dated 23 April 2011, Satoshi wrote of having "moved on to other things" and said the project was in good hands. Later messages that claimed to come from Satoshi have generally been treated as unverified or fake.
The coins never moved
As the first and, for months, almost the only miner, Satoshi accumulated a large number of coins. Analysis by researcher Sergio Lerner of patterns in early blocks, known as the "Patoshi pattern", led to estimates of roughly one million bitcoins mined by a single early entity widely assumed to be Satoshi. These are estimates, not proven ownership. Coins linked to those blocks have, as far as public data shows, never been spent, which makes them a constant subject of speculation: any movement would be visible on a block explorer and would probably affect the market. If the estimates are right, Satoshi would be one of the largest holders, or whales, of bitcoin.
Identity claims and court rulings
Many people have been named as Satoshi by journalists, documentary makers and online investigators, and most have denied it. In March 2014 Newsweek named Dorian Nakamoto, a Californian engineer, who denied any connection. Cryptographers such as Hal Finney, Nick Szabo and Adam Back have been suggested and have denied being Satoshi. In October 2024 the HBO documentary "Money Electric: The Bitcoin Mystery" pointed to developer Peter Todd, who rejected the claim.
The only person to claim the identity in a sustained way, the Australian computer scientist Craig Wright, lost in court. In COPA v Wright, brought by the Crypto Open Patent Alliance, Mr Justice Mellor of the High Court of England and Wales announced on 14 March 2024 that Wright was not the author of the white paper and was not Satoshi Nakamoto. The reasoned judgment, [2024] EWHC 1198 (Ch), followed on 20 May 2024 and found that Wright had lied and forged documents extensively. In December 2024 the same judge found Wright in contempt of court for breaching an order against bringing further claims based on the Satoshi identity and gave him a 12-month prison sentence, suspended for two years.
Legacy
Satoshi's anonymity is often cited as part of Bitcoin's appeal, because there is no founder who can be pressured, arrested or relied upon, and because control passed to an open community governed through public proposals. The Bitcoin maximalist movement and many later projects quote Satoshi's writings as founding texts. Critics note that anonymity also left early governance unclear and fed years of costly impersonation.