Originally posted by WendyB Every image captured on any digital camera since 911 has a "signature fingerprint"
Okay, seriously, where are you getting this stuff from? Maybe time to order some tin foil hats?
Technically speaking, every digital image ever made has such a fingerprint because it's inherent in the sensor -- not just starting with "911". But, the technology to recognize and compare them is in its infancy, and it's not certain exactly how confidant one can be in a match. That's the state of the art.
But what you're implying is that a) there exists a vast secret database of all camera sensors and their proper fingerprints and b) corporations access this for their own internal needs, not just for national security and c) you personally have expert knowledge of this.
If any one of these is true, please share your evidence, because this is a story for the front page of every major newspaper tomorrow morning.
Oh, and I forgot d) -- Pentax knows the noise fingerprint of every sensor, but still doesn't map out dead pixels except by special request.
I was pretty eager to believe your other rumors, but this claim isn't even far-fetched -- it's flat out unbelievable. You want maybe to backpedal and say that you're just repeating what someone told you?