How did Topps authenticate the DNA relic cards?

I was wondering if anyone had any articles or anything on how Topps authenticated the DNA relic cards for 2007 and 2008 Allen and Ginter. I mean, short of cracking his tomb open and looking around for a hair, how can you prove a bit of hair belonged to George Washington or John Adams or any of the people they have hairs from? I am assuming they acquired they woolly mammoth hair from one of the mammoths they found encased in ice and the dinasour bone from an authentic fossil.
Collecting Tony Conigliaro
0
Comments
Article about John in NY Times
Mike
that the hair he was looking at was "legitimate."