I’m not sure what you’re saying, Steve. If you’re saying it must be fake because it has no lines in it, there’s also a very simple explanation for that. According to the documentation we have, the copies were hand delivered by the DOH to Obama’s representative, not mailed. So no lines is not particularly surprising.
The big thing is the letter from the Director of Hawaii’s Department of Health testifying to the certificate’s authenticity. Anyone wanting to prove a fraud needs to somehow get past that.
But maybe you were saying something else.
That is why there is a SEAL on the paper itself, it is the seal which proves authenticity, sot someones statement that there is an authentic copy somewhere.