At this stage of the game, if he did produce a birth certificate, would everyone believe it to be authentic?
If he releases it to the press and holds a press conference with the HI officials who in turn vouch for it, yes. I’d drop it, as would 98% of the so called birthers.
The “birth certificate” issue is tangential. If it were produced I, personally, would “trust but verify”. My point is, however, that the certificate itself is irrelevant. Barry Soetoro is the son of a British subject. He lacks “singular allegiance” to the United States of America. The only citizens excused from this requirement were those living at the time of the signing of Constitution. Accepting Mr. Obama as POTUS opens the door for any foreign despot (Putin, Ahmadinejad, Kim Jong-il, etc.) to father a child in America and purchase (usurp) the leadership of the United States for that child in due time. The Founders took precautions against that possibility, and we would be wise to enforce them.
First, all an Hawaiian birth certificate, if it exists, would establish is that Obama is a citizen. The Constitution requires more. It requires that he be a natural-born citizen. This is a phrase that had a very specific meaning to the Framers and that is that his parents had to be citizens.
Second, if Obama merely "produces" this birth certificate and shows it to Katie Couric, allows this RINO Congressman to inspect it, or even posts another jpeg image on the internet, I wouldn't accept the proffer. Obama has already shown himself to be deceptive and untrustworthy. The only "production" I would accept is if he waived his Hawaiian right to privacy and authorized the government there to sell raised seal certified copies at their usual fee to anyone who requests them. Then maybe three months after the first such copies have been delivered to random citizens, and no reasonable claims of fraud (ala Polarik) have arisen, then I would probably accept it. It ain't gonna happen.