Agree with the weakness, but the benefit of provenance is still there. You can't tell if the picture that person took is of an AI image, but there's some value in saying "I took this" and being able to prove it.
I hope future social media presents this metadata so if someone claims a photo is from the BBC, it actually gets checked against the keys the BBC sign their photos with.
Ideally itβd be linked to public key on a DNS txt record or similar, and trustworthy clients (including social media apps) show the domain linked to the photo.
