In a world where any image or video can be generated, chain of custody to a real-world ground-truth will be vitally important.
This will become indispensable sooner than anyone imagines or wants it to.
Absent a chain of custody (perhaps including GPS baked into the signed image data blob), I think analog artifacts will become untrustable. Unless you can physically date them to pre-generative era!
Bonus feature: new display devices get better trained / new AI features for free
E.g. from the raw data we know the sensor, we can train a specific AI to enhance the image from the known physical properties of the CCD
Sometimes there are exploits which extract these keys from the cameras themselves, but I don't hear them nowadays.
One of the older products: https://imaging.nikon.com/lineup/software/img_auth/index.htm
Likewise depth fields and other potential forms of sensor augmentation.
Once generative AI really takes off we will need some system for unambiguously proving where an image/video came from; the solution is quite obvious in this case and many have sketched it already.