this post was submitted on 08 Oct 2024
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Bit late for that (even in 2023). Best we could do now is something like public key cryptography, with cameras having secret keys that images are signed with. However:
For artists and photographers with old school cameras (“old school” meaning “doesn’t compute and sign a perceptual hash of the image”), something similar could still be done. Each such person can generate a public / private key pair for themselves and sign the images they’ve created manually. This depends on you trusting that specific artist, though, as opposed to trusting the manufacturer of the camera used.