That would only work if the knockoff image is registered on-chain after the real image. If I'm going to rip off an image, I'm not going to submit it back to the

That would only work if the knockoff image is registered on-chain after the real image. If I'm going to rip off an image, I'm not going to submit it back to the entity that created it. Hashes don't verify the date that something was created. The blockchain provides a date for the hash, but it provides no guarantee that the hashed item didn't exist long before when it first appeared on chain. If I simply modify the image metadata to say that my knockoff photo was taken at an earlier date and flip some bits, I can still claim that mine is the original and that I didn't submit it to the blockchain when I created it.