Hi Crimbit, consensus is emerging (tee hee!) in this thread...

https://bitcointalk.org/index.php?topic=1457039.0

... that definitive proof has not yet been provided. SCW's blogpost isn't the smoking gun. I lack the time and will to follow the chains of reasoning in the 'is it or isn't it' show, so I defer for now to people who say 'it isn't'. Worryingly, Gavin Andresen thinks he's the real deal. I say 'worryingly' as I am a big-blocker and if GA has dropped the ball on this, whether innocently or out of motivated reasoning, it greatly damages 'our' cause.

(Digression: 'follow the arguments not the people' is great advice when the arguments can be fully digested by someone prepared to put in the time and effort, and where the questions and proposed solutions are clear-cut. But most real world disagreements are 'messy', and evaluating one's trust in the principal arguers is an imperfect but useful *and rational* way of doing inference)