Unfortunately, people will truly try to fake the "paper trail". People posted sped up video of them creating art as proof they made it, so people also used AI to try to generate that.
I don't think AI can create convincing timelapses of digital art being made, yet. I know there is nothing stopping it from getting there, but I think artists are happy for any kind of proof-of-work they can produce right now.
Including a research paper from a few years back: https://inversepainting.github.io/
Edit: Actually hadn't thought of fake building construction timelapses, and apparently that's also a thing.