The New York Times published an investigation Tuesday arguing that Adam Back, a British cryptographer and longtime figure in the Bitcoin community, is the most credible candidate yet for Satoshi Nakamoto — the pseudonymous inventor of Bitcoin.
Back denied the claim before the story ran, denied it inside the story, and denied it again in a public post on X after publication.
“I’m not satoshi, but I was early in laser focus on the positive societal implications of cryptography, online privacy and electronic cash, hence my ~1992 onwards active interest in applied research on ecash, privacy tech on cypherpunks list which led to hashcash and other ideas,” Back wrote on X.
The Times investigation leans on textual analysis of old emails and forum posts. The methodology focuses on writing patterns, including the use of double hyphens and British spelling conventions. The Times noted that early researchers had explored concepts such as peer-to-peer systems, proof-of-work, and routing models that looked like prototypes for Bitcoin, and that Back’s archived writing contained a high density of those overlaps.
Back, who developed Hashcash in 1997 — a proof-of-work system later incorporated into Bitcoin’s design — acknowledged the surface-level similarities but offered a structural counter.
Because he wrote at length on the cypherpunks mailing list about electronic cash and privacy from around 1992 onward, he argued, his old writing is simply easier to match against Satoshi’s than the writing of contributors who posted far less.
“The rest is a combination of coincidence and similar phrases from people with similar experience and interests,” Back wrote on X.
He also addressed a specific passage in the Times story that treated one of his remarks in a reporter interview as a possible slip. Back said the comment was about confirmation bias in the research process, not an accidental self-disclosure.
Adam Back, Satoshi identity claim faces skepticism
The report did not produce documentary proof — no private key demonstration, no verified direct communication from Satoshi’s wallet address, and no corroborating witness on the record. The case rests on stylometric analysis and pattern matching, tools that carry real analytical weight but have not, in prior Satoshi investigations, produced conclusions that the broader Bitcoin community has accepted.
Several credible voices expressed skepticism. Joe Weisenthal, a Bloomberg columnist and co-host of the Odd Lots podcast, said he was “not 100% convinced by the evidence or the conclusion.” He noted that shared political views on privacy and internet architecture were common across the cypherpunk cohort and do not single out any one person. He also pointed out that hyphenation habits vary and are a fragile basis for attribution.
Nicholas Gregory, an early Bitcoin participant in the U.K., said he did not believe Back was Satoshi based on personal interactions, according to CoinDesk reporting. He also raised a practical concern: public identification of the person behind the pseudonym, whoever that is, could put that individual and their family in physical danger. According to crypto exchange Arkham, Satoshi’s Bitcoin holdings are worth roughly $73 billion.
This is not the first time a major outlet has believed it solved the mystery. A 2024 documentary pointed to developer Peter Todd, who also denied the claim and whose case ultimately failed to persuade.