During a trial, the government could be required to prove the authenticity of the materials and describe how it obtained them.
This time, Joe asked whether I had documentation to prove the authenticity of the ball and signatures, which is something that collectors demand.
He has said he will prove the authenticity of his findings by thawing five remaining frozen stem-cell lines, a procedure he estimates will take around ten days.
An Italian who claims to have been Francis Bacon's lover for 15 years is fighting to prove the authenticity of hundreds of drawings which he says were given to him by the artist.
Mr. Buell, the retired head of the Associated Press photo service, says that despite film of the whole event proving the authenticity of Mr. Rosenthal's work, a whiff of controversy stubbornly lives on.
And as she jumps through hoops trying to prove the authenticity of the canvas she purchased at the Dot Spot Thrift Shop in San Bernardino, Calif., now defunct, you are inclined to agree with her.
During a trial, the government could be required to prove the authenticity of the materials and describe how it obtained them, and might also be forced to place its Russian agent, who has not yet been publicly identified, on the witness stand.
Nevertheless, nearly a decade after the game's release, a number of communities continue to work to prove the authenticity of Bigfoot's existence in the original game, and devoted users still upload photographs of unusual footprints and other pieces of circumstantial evidence to their Web sites.
Erickson then posted a second video to prove the authenticity and saying that Google had increased the login requirements "substantially".
In contrast to public-key signatures, a MAC cannot prove the authenticity of a message to a third party.
