Would all states be required to accept the hard copy? Yes, that's because there's this passage in the Constitution called the Full Faith and Credit Clause. Perhaps you have heard of it?
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Are you telling us the following:
If, for example, Obama was involved in a court case for some reason in, say, California or Michigan, the court could NOT order Obama to present his long form birth certificate because Obama had already presented a legally acceptable short form birth certificate to prove that he is who he says he is. and because the court was bound by the Constitution passage you cite above.
What about the lawyers on the other side of an Obama court case, say, in California or Michigan?
Could they request that Obama provide a copy of his long form birth certificate even though Obama had already presented a copy of his short form birth certificate to the court?
Myself, I find it difficult to believe that a state court of law did NOT have the power to order Obama to provide a copy of his long form birth certificate, because Obama had already presented a copy of his short form birth certificate to the court in order to prove that he was who he said he was.
They could only order it if there was some information on the long form not on the short form that is relevant to the case.