Bitcoin OG Adam Back has refuted claims that he is Satoshi Nakamoto, the pseudonymous creator of Bitcoin. In an April 10, 2026 interview on Bloomberg Podcasts, Back dismissed the speculation as lacking substantial evidence. He provided three technical counterarguments: first, he would have used more privacy-focused techniques from the Sander and Ta-Shma paper if he had designed Bitcoin; second, early Bitcoin code contains cryptographic format errors he claims he would not have made; third, IRC logs still exist showing him asking other developers about Bitcoin details. These points, he argues, undermine the theory that he is Nakamoto.