An original birth certificate; and a photocopy of a birth certificate; both with impeccable provenance. As well as a wide range of statements by a number of persons with first hand knowledge. And admission by Obama on at least two occasions. If permitted to get that to a trier of fact with a justiciable issue, I would get most of that into evidence.
Yes, I think we know where he was born. Lots of trolls here to deny it but there isn't any doubt what the outcome would be if you ever got the issue to a trier of fact.