Anyone could see what cert signed it though. Sure anyone could sign video, just as anyone can have a site with SSL, but it would be easy to verify that the signing cert isn't the same.
For example, if some news org shot footage with some of their cameras or produced some video, the video player could show which certs were used in editing and to capture the video. If another party tampered with the video, the signed frames could reflect that, as the other party would not have the signing certs.
This is all hypothetical vaporware of course. Just saying I wonder if a video encoding solution like this could help people have faith in the video content they see.
This is all hypothetical vaporware of course. Just saying I wonder if a video encoding solution like this could help people have faith in the video content they see.