Satoshi can only prove his identity, nobody can prove he is not Satoshi. The closest to a prof I can think of is if Dorian were in a TV studio while the real Satoshi signs a message given by the TV station with one of the oldest keys.
Guess that won't happen which is why this horrible woman will get away with this.
actually whilst dorian was having interviews. the bitcoin satoshi used an old username on the p2p forum to say he was not doarian..
dorian does not know what bitcoin is
"i just believe someone put that fictitious name in there.. satoshi nakamoto, in bit-co.. i mean bitcoin"
he cant even get the name right first time.
his nervousness is down to spending the last few hours being hounded by media on his lawn, yielding camera's and shouting at him to make a statement, following his every move.