New research from the University of Waterloo's Cybersecurity and Privacy Institute demonstrates that any artificial intelligence (AI) image watermark can be removed, without the attacker needing to know the design of the watermark, or even whether an image is watermarked to begin with.
The obvious limitation being that you can take a real photo with attestation with a real camera of a real computer screen displaying any fake shit you can imagine, then you have an officially hashed photo of anything.