My protocol would be proof of ownership, in 3 layers and 2 fingerprints, like multi sig. Based on PoW to generate a pixilated block of data on layer 1 where the artist posts their original copy with both fingerprints hashed, a negative of the pixelated AI data on layer 2 for cloning purposes with the physical fingerprint hashed, and layer 3 to provide public keys purchasable by the public.

To bad it's PoO though, haha.