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New Leica camera stops deepfakes at the shutter (spectrum.ieee.org)
submitted 2 years ago by to c/technology@lemmy.world
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[–] 1 point 2 years ago (1 child)

How is a hash of the image supposed to prove anything about when it was created?

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  • [–] 3 points 2 years ago (2 children)

    You post it publicly somewhere that has a timestamp. A blockchain would be best because it can't be tampered with.

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  • [–] 1 point 2 years ago (1 child)

    That proves it existed at a specific time in the past, not that it didn't exist before that. What's stopping a hash of the Mona Lisa on a block chain with today's date?

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  • [–] 2 points 2 years ago (1 child)

    It also doesn't materialize ponies out of nothing. It can't do everything, but surely you can see that there are a lot of situations where being able to say with confidence that "this picture existed in exactly this form at exactly this date" is a super useful thing?

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