He didn't sign a message "Craig Wright is Satoshi", which would be the proper way to prove this. The signature he has could come from one of the signatures the

He didn't sign a message "Craig Wright is Satoshi", which would be the proper way to prove this. The signature he has could come from one of the signatures the real Satoshi has created. Edit: https://news.ycombinator.com/item?id=11609707 https://news.ycombinator.com/item?id=11609707 The signature came from a blockchain tx.