Adam Back Traces Bitcoin to Cypherpunk Roots, Rejects Peter Todd Theory

Blockstream's Adam Back has refuted claims that developer Peter Todd is Satoshi Nakamoto, the pseudonymous creator of Bitcoin (BTC). Back argues that Bitcoin's proof-of-work math is a discovery, not an invention, and that it evolved from cypherpunk research dating back to 1997.

Back pointed to a 1997 mailing list thread as evidence that the concept of decentralized money built on proof of work had been circulating for years before the release of the 2008 white paper. He also cited his own Hashcash system, written in 1997 to combat email spam, which later became an essential component of Bitcoin's mining process.

Back rejected the idea that Todd is Satoshi Nakamoto, stating that he and Hal Finney were already working on similar concepts in 2001. Back received the first known message from Satoshi in August 2008, which flagged a Hashcash citation ahead of the paper.

The debate resurfaced after Todd recalled discussing Bitcoin-like systems with Back and Finney as a teenager, but stopped short of making any authorship claims. When one reader took Back's reply as confirmation that Todd is Satoshi, Back rejected it outright.