Would that not cause the state of Hawaii to open the sealed "birth certificate" for examination?
Not at all. What the State of HI now issues called - Certification of Live Birth - is prima fascia evidence of birth, and that has been tested in court, all the way to the Supreme Court - it's settled law. Now, the only other hurdle to get over would be to verify the authenticity of such a document. For that, all Obama would need to supply would be a sworn affidavit from an appropriate HI officials stating that the document was genuine and hasn't been altered in any way. That's it. Case over.
Don't shoot the messenger.