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The White House wants to 'cryptographically verify' videos of Joe Biden so viewers don't mistake them for AI deepfakes
(www.businessinsider.com)
this post was submitted on 11 Feb 2024
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Merkle tree hashes exists for this purpose
Note that videos uses "keyframes" so you can't extract arbitrary frames in isolation, you need to pull multiple if the frame you're snapshotting isn't a keyframe itself