New York Times Investigation Names Adam Back as Bitcoin Founder Satoshi Nakamoto

The New York Times published an investigation on April 8, 2026, identifying British cryptographer Adam Back as Satoshi Nakamoto, the pseudonymous creator of Bitcoin. The report, led by journalist John Carreyrou and colleague Dylan Freedman, draws on more than a year of digital forensic analysis, archived emails, and forum posts stretching back decades. Back, the CEO of blockchain technology company Blockstream and inventor of Hashcash, denied the claims promptly on X, writing that he is not Satoshi Nakamoto. Whoever holds the Nakamoto identity controls approximately 1.1 million bitcoins, a fortune valued at around $73 billion according to cryptocurrency exchange Arkham. The publication has shaken the cryptocurrency world, reigniting a debate that has persisted since Bitcoin launched in 2009.

AI narrows 34,000 suspects down to one name Carreyrou's investigation began after he watched the 2024 HBO documentary "Money Electric: The Bitcoin Mystery", which pointed to Canadian software developer Peter Todd as Nakamoto — a conclusion Carreyrou found unconvincing. His suspicion focused on Back after noticing Back appeared to tense up in the documentary when asked whether he was Satoshi. Carreyrou and Freedman then analyzed archives from the Cypherpunks, Cryptography, and Hashcash mailing lists spanning 1992 to October 30, 2008, comparing them against Satoshi's known writings. Starting from a pool of 34,000 suspects, the analysis narrowed the field to eight individuals by identifying shared writing quirks, including the use of two spaces between sentences, ending sentences with "also," and British spellings. The investigators then cross-referenced those eight against a further set of stylistic markers — alternating between "e-mail" and "email," "cheque" and "check," and British and American forms of the word "optimize" — and found only one match. „We then asked our database: How many of those remaining eight suspects alternated between using "e-mail" and "email," "e-cash" and "electronic cash," "cheque" and "check" and the British and American forms of the word "optimize" like Satoshi did. The answer was just one: Mr. Back.” — John Carreyrou via The New York Times Carreyrou also noted that Back described an electronic cash system strikingly similar to Bitcoin in posts on the Cypherpunks mailing list between 1997 and 1999, and that Back went dormant on cryptography forums precisely during the years Satoshi was most active, reappearing only after Satoshi disappeared in 2011.

Back calls similarities coincidence, confrontation in El Salvador Carreyrou confronted Back directly at a Bitcoin conference in El Salvador, where he described Back as reddening and shifting uncomfortably when presented with the evidence. According to Carreyrou's account, Back appeared to make a conversational slip, speaking as if he were Satoshi himself — a moment the journalist described as removing any lingering doubt. Back rejected all of it, characterizing the similarities as "a combination of coincidence and similar phrases from people with similar experience and interests." He also denied the claims publicly on X after the article was published. „I also don't know who satoshi is, and i think it is good for bitcoin that this is the case, as it helps bitcoin be viewed [as] a new asset class, the mathematically scarce digital commodity.” — Adam Back via The Guardian Back further described Carreyrou's conclusions as an exercise in "confirmation bias," according to El Confidencial's reporting on the investigation. The reaction from the broader cryptocurrency and academic community was divided, with some observers finding the circumstantial case compelling and others remaining skeptical.

Academics unconvinced, but Nakamoto's fortune looms large Stephen Murdoch, a professor of computer science at University College London, acknowledged the investigation raised plausible indicators but stopped short of endorsing its conclusion. „There's some indication that it's him, but there's no smoking gun.” — Stephen Murdoch via The Guardian Murdoch added that his own bet would still be on Hal Finney, a software developer who received the first-ever Bitcoin transaction from Satoshi — a detail he said suggested Satoshi and Finney may have been the same person. The stakes of the identification are considerable: Nakamoto's holdings of approximately 1.1 million bitcoins represent one of the largest private fortunes on Earth, with valuations cited in various reports ranging from $70 billion to $78 billion. The case of Australian Craig Wright, who spent years attempting to be legally recognized as Bitcoin's inventor and was sentenced to prison at the end of 2024 for related harassment, illustrates how high the stakes of the Nakamoto identity have become. Carreyrou, who previously exposed the Theranos fraud and wrote the bestselling book "Bad Blood," spent more than a year on the investigation alongside Freedman, who works on The New York Times' AI team. Despite the volume of circumstantial evidence assembled, Back's denial and the absence of a definitive smoking gun mean the mystery of Satoshi Nakamoto's true identity remains, at least officially, unresolved.

Bitcoin was introduced in 2008 through a nine-page white paper published under the pseudonym Satoshi Nakamoto, which described a decentralized peer-to-peer electronic cash system. The cryptocurrency launched in 2009, and Nakamoto remained active on forums such as Bitcointalk before disappearing from public view around 2011. Over the years, journalists and researchers have proposed multiple candidates for Nakamoto's identity, including Nick Szabo, Hal Finney, and Craig Wright, none of whom has been definitively confirmed. Hashcash, the proof-of-work system invented by Adam Back in 1997, was cited directly in Nakamoto's original white paper as a foundational reference. Finnish programmer Martti Malmi, who collaborated with Satoshi in Bitcoin's early days, published an archive of hundreds of emails exchanged with Nakamoto, which later proved crucial to the New York Times investigation.