[duaneb]

I think you were well within your rights (and even the bounds of politeness for a cash transaction). If Dorian is not Satoshi, then this won't be a problem. If he is, this wouldn't be what would prove it. His problems are far, far larger than any one person's claim to resolve, I think.

[georgemcbay]

This wouldn't prove anything one way or another but if it turns out that Dorian was in New York in the later half of 2011 (presumably he would have flown since he lives in CA and thus flight records could probably show one way or another), that would be pretty convincing circumstantial evidence.

[andypag]

He stated in his denial he'd not heard of "bitcom" until his brother told him about it 3 weeks ago, so if it transpired he'd used it in 2011 then that would prove that he wasn't being entirely truthful.