Satoshi Nakamoto

Satoshi Nakamoto is the name used by the person or group who wrote the 2008 white paper "Bitcoin: A Peer-to-Peer Electronic Cash System," released the first Bitcoin software in January 2009, and corresponded with early developers until disappearing in 2011. The identity behind the name has never been established. Nakamoto worked entirely through email, forum posts, and code, debuting the project on a cryptography mailing list descended from the Cypherpunks milieu, and the public record of the figure consists of the white paper, the early Bitcoin source code, several hundred forum and email messages, and a body of mined coins, estimated at around 1.1 million bitcoin, that has sat untouched since 2010.¹²³

The White Paper and the Mailing-List Debut

On 31 October 2008, from the address satoshi at vistomail.com, Nakamoto posted a message titled "Bitcoin P2P e-cash paper" to the cryptography mailing list hosted at metzdowd.com, writing "I've been working on a new electronic cash system that's fully peer-to-peer, with no trusted third party" and linking the nine-page paper at bitcoin.org. The message listed the design's properties: double-spending prevented by a peer-to-peer network, no mint or other trusted parties, participants able to be anonymous, and new coins made from "Hashcash style proof-of-work," the scheme that Adam Back had devised in 1997. The abstract opened "A purely peer-to-peer version of electronic cash would allow online payments to be sent directly from one party to another without the burdens of going through a financial institution."¹⁴

The paper cited Wei Dai's b-money and Back's Hashcash, and the design drew on the digital-cash lineage the cypherpunks had built, including Nick Szabo's bit gold and Hal Finney's reusable proof-of-work. Nakamoto's first private contacts predate the public post: an email to Back on 20 August 2008 flagging the Hashcash citation, and an email to Wei Dai on 22 August 2008 asking for the publication year of the b-money page so it could be cited correctly. The initial mailing-list announcement drew only a handful of replies, and Nakamoto reposted on 3 November 2008 to push the paper again.⁵⁶

Launch and the Genesis Block

Nakamoto released version 0.1 of the Bitcoin software in early January 2009 and mined the genesis block on 3 January 2009. Embedded in the coinbase of that first block is the text "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks," a verbatim quotation of the front-page headline of the London Times that day, which fixed the block no earlier than 3 January and was read as a comment on the bank bailouts of the 2008 financial crisis. On 9 January 2009 Nakamoto emailed Hal Finney, who became one of the first people to run the software, and on 12 January 2009 sent Finney ten coins in the first Bitcoin transaction.⁷⁸

Through 2009 and 2010 Nakamoto ran the project by email and on the SourceForge code repository and the bitcointalk forum, releasing software updates, fixing bugs, and handing increasing responsibility to the developer Gavin Andresen. Analysis of the early blockchain by the researcher Sergio Demian Lerner identified a distinctive nonce pattern, the "Patoshi" pattern, across the blocks mined in the first year, attributing roughly 1.1 million bitcoin across more than 22,000 addresses to a single early miner taken to be Nakamoto. None of those coins has ever been spent.²³

Disappearance

In December 2010, after the major payment processors cut off WikiLeaks, some users proposed that WikiLeaks accept Bitcoin donations. Nakamoto objected on the bitcointalk forum on 11 December 2010, writing "It would have been nice to get this attention in any other context. WikiLeaks has kicked the hornet's nest, and the swarm is headed towards us." Nakamoto's public forum activity ended that month. The last known private email, to the developer Mike Hearn on 23 April 2011, stated that Nakamoto had "moved on to other things" and that the project was "in good hands with Gavin and everyone."⁹¹⁰

By the time of that message Nakamoto had spent months transferring control of the project to Gavin Andresen, handing over the source-code repository and the network alert key that could broadcast signed warnings to every client, and had stopped signing code releases. Andresen's disclosure that he was scheduled to brief the Central Intelligence Agency through the In-Q-Tel network in 2011 is sometimes cited as a trigger for the final withdrawal, though Nakamoto left no statement of reasons. No verified communication from the Nakamoto identity has appeared since 2011, the early coins have never moved, and the cryptographic keys that would prove control of them have never been used to sign a message, which is the standard the living candidates have all declined to meet.¹⁰²

The Candidates

No claim to the Nakamoto identity has been confirmed, and the people most often named have denied it. Nick Szabo, author of the bit gold proposal, was named the most likely author of the white paper in a 2014 stylometric exercise by final-year students at Aston University's Centre for Forensic Linguistics, who called the linguistic similarities "uncanny"; Szabo replied to the writer Dominic Frisby in 2014, "I'm afraid you got it wrong doxing me as Satoshi, but I'm used to it." Hal Finney, who received the first transaction, was investigated by Andy Greenberg for Forbes in 2014; commissioned stylometry from Juola and Associates found Finney the closest match yet, but he was cleared by an alibi placing him at a road race when Nakamoto was sending timestamped messages. Wei Dai and Adam Back, the first two people Nakamoto is known to have emailed, have both denied being Nakamoto.¹¹¹²⁶

In March 2014 a Newsweek cover story by Leah McGrath Goodman named Dorian Prentice Satoshi Nakamoto, a Japanese-American engineer in Temple City, California, on the basis of his birth name and an ambiguous remark; he told the Associated Press "I did not create, invent or otherwise work on Bitcoin," and said he had taken Goodman's question to be about his earlier engineering work for defense and financial firms. The Australian computer scientist Craig Wright publicly claimed from 2015 to be Nakamoto, a claim a United Kingdom court rejected in 2024: in COPA v Wright, Mr Justice Mellor ruled that Wright was not Nakamoto and had committed forgery "on a grand scale," citing 47 forged documents including purported white-paper precursors written in a version of LaTeX unavailable in 2008. In April 2026 a New York Times investigation by John Carreyrou named Adam Back as the most likely candidate, citing his British nationality, his 1990s cypherpunk activity, the Hashcash citation, and more than a hundred matching words and phrases between his archived posts and Nakamoto's writing; Back answered "I'm not Satoshi" and said his heavy posting volume made him an easy target for the pattern-matching.¹³¹⁴¹⁵