Thanks for posting this. What intrigues me is that with your filtering, the crease at the top that was barely visible now is much clearer. But there’s also no evidence of any other creases. Someone had claimed there was a much fainter crease that ran either above or below Father’s Name: I sure don’t see any evidence of that.
As well,your filtered version certainly seems to show a seal, but according to the folks in Hawaii, they never issue these certifications without a signature. Even though it’s on the back, such signature is clearly visible on all the other Hawaiian BC’s that have been posted. Yet on Obama’s there’s nothing of that sort visible.
Notice that there are no equivalent puzzles that arise when one looks at the other BC’s posted and compares them to one another. It’s only Obama’s that seems to differ in various details that sort of makes you go “Hmmmmmmmm.”
I don't understand why the Obama people didn't just didn't scan both sides of the document in the first place.
-PJ