NYT's Satoshi Sleuths Dust Off Adam Back Theory; Blockstream CEO Says 'Not Me (Again)'

The New York Times has dusted off one of Bitcoin's oldest cold cases, publishing an investigation arguing that Adam Back — the British cryptographer behind Hashcash and CEO of Blockstream — is the most likely person hiding behind the Satoshi Nakamoto pseudonym. Because nothing says "Tuesday afternoon" quite like another journalist claiming they've cracked the 15-year-old mystery of who invented money that governments can't print.

Back, predictably, denied the claim with the enthusiasm of someone who's been asked this question approximately ten thousand times. He told Cointelegraph he's referring reporters to his existing post on X, where he's previously rejected similar attempts to unmask him as Bitcoin's creator. In the post, he emphasized his early interest in cryptography, online privacy and electronic cash, pointing to his work on the cypherpunks mailing list dating back to the 1990s. Spoiler: lots of people were into cypherpunk stuff in the 90s. It was basically the crypto equivalent of being into fitness in 2024.

The investigation was conducted by John Carreyrou, the French-American journalist best known for exposing the Theranos fraud. His report claims Back fits the profile: cited in Satoshi's white paper, actively discussed electronic cash for years, vanished just as Bitcoin emerged, then reappeared after Satoshi disappeared. Carreyrou reportedly spent months down this particular rabbit hole, which honestly sounds like either excellent journalism or a very elaborate tax write-off.

Carreyrou leaned heavily on stylometric analysis, arguing Back's writing shared quirks with Satoshi's — formatting habits, hyphenation patterns and overlapping technical language. Among mailing-list participants, only Back hyphenated "proof-of-work" and referenced the obscure Russian currency WebMoney, both appearing in Satoshi's emails. Back was also one of just two to use "partial pre-image" and the only one to discuss "burning the money" for digital coins. The bar for "being Satoshi" apparently includes having very specific hyphenation opinions and being the only person on the internet who mentioned WebMoney in 2008. Peak detective work.

Back's career trajectory adds fuel to the theory. He avoided Bitcoin early, then in 2013 rapidly engaged — co-founding Blockstream, recruiting top developers and raising over $1 billion. The report noted it "seemed consistent with what Satoshi might do if he decided to reappear under the cover of his real name." Or, you know, what any rational person might do when they see a technology they helped pioneer finally going mainstream. But sure, let's go with the conspiracy angle.

Back has consistently denied being Satoshi. In 2024, he responded to an HBO documentary identifying Peter Todd as Satoshi: "I'm not. But also the documentary will presumably be wrong, as no one knows who Satoshi is." The man has been so thoroughly doxxed by the internet's finest armchair detectives that he's developed a kind of weary, philosophical acceptance about the whole thing. Can't blame him.

The crypto community remains skeptical. Jameson Lopp, Casa's co-founder and chief security officer, said Nakamoto "can't be caught with stylometric analysis." Carreyrou himself acknowledged the case lacks definitive proof, stating cryptographic evidence would be the only real smoking gun. Which, given that Satoshi reportedly moved coins worth billions during his slumber, would be quite the smoking gun to obtain without the private keys.

The mystery endures. And honestly, at this point, maybe that's the point.