Yes, but how do we know it's THE piece of paper? You could've used an invisible robotic probe, just like NASA did in the late 60's to surreptitiously replace the sheet at the last second.

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Apollo unbelievers go here for immediate salvation:
http://www.youtube.com/watch?v=khDI2MsWSYc

"I had a hand in Tom Morrow's kiester."
-JayUtah

"The only physical proof nasa has that they landed men on the moon is 840 lbs. of rocks"
-straydog02