[Paleo Conservative]

Quick do a radiocarbon test of the paper. See if it’s 45 years old.

Radio carbon dating isn't that precise. You might be able to nail down the century.

[ArtyFO]

Do the radiocarbon test of the paper of the birth certificate. Here’s one that was tested and found to be a fake document from 1950 http://www.benhammott.com/radiocarbon_message1_test.html