[ke88y]

Yeah, this is my general feeling about why this area is doomed. It's why I haven't bothered to write up a patent even though I had some good ideas a few years ago. Maybe that was a mistake since governments and corporate politicians are stupider than I assumed.

If you have a central source of authority then the problem is totally trivial and the fact that the images are AI-generated (or not) is a complete red herring.

If you don't have a central source of authority then any reasonable adversarial model makes the watermarking problem somewhere between very difficult and impossible.

Detection from known models is still possible, at least for images. But that's not really watermarking per se.