He is not. There's no question in my mind. If Satoshi wanted to use his private key to prove that he was real, he wouldn't have needed to fake everything. If he

He is not. There's no question in my mind. If Satoshi wanted to use his private key to prove that he was real, he wouldn't have needed to fake everything. If he had lost access to the key for some reason or another, he could just say that he lost it, and use other methods to authenticate himself.