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by xamuel 2894 days ago
This would only hinder amateurs. Pros will just intercept the camera's own sensors. (A simple version of which can be done by amateurs: take a certified video of an uncertified video.) Maybe you could build GPS into the signature, which could help (I'm not sure how hard it would be to feed a camera fake GPS). But even if all these tech solutions work 100% perfectly, all you've done is weeded out laymen. The REAL powers (such as governments or multinational corporations) will just make backdoor deals with certificate authorities.