Instead of proving some image on some platform is not AI or severely edited, we can simply prove it was original by verifying unforgeable signature made by a camera / microphone baked into each image produced by it.
And of course in future it could be done for video and audio! This would be absolutely HUGE!
The image data the sensor physically receives passes through a ton of processing steps before the image lands in your phone. If there is some watermarking/signature doing on, on the image, it'd be that the device at that moment capture that data, not that it's not AI, or not edited, or "truthful" or whatever. That's still an unsolved problem to figure out.
Still no solution if the image posted online is not that reference image or that reference image is actually a photo of an AI picture.
https://lobste.rs/s/4netv1/c2pa_cameras_do_not_survive_conta...