There was some circumstantial evidence, including Todd’s interest in cryptography from a young age, his relationship with Adam Back (who emailed with Satoshi), his technical ability and Satoshi’s use of British/Canadian spellings juxtaposed with the fact that Todd is from Canada. The film’s most tangible evidence hinged on a 2010 public forum post in which Todd responded to one of Satoshi’s posts. Hoback argued Todd’s post was a continuation of Satoshi’s post, but accidentally sent from an account with Todd’s name on it instead of Satoshi’s.
