[calebh]

I wrote a blog [1] a couple years ago about this solution - it turns out it is possible to use timestamp authority servers in combination with hashing functions to create a verified edit history. Like the other comment said, it merely starts an arms race where the AI side is likely to win, which is why I haven't pursued this further.

For something like digital art creation verifying the edit history is much more fruitful since the diffusion process is nothing like how humans create art.

[1] https://helbl.ing/Written-Proof-of-Work/