> Circumventing a copy-prevention system without a valid exemption is a crime, even if you don't make unlawful copies.
Yep, this is the DMCA section 1201. Late '90s law in the US.
> Copyright covers the right to make copies, not the right to distribute
This is where I got confused. Copyright covers four rights: copying, distribution, creation of derivative works, and public performance. So I'm not sure what you were getting at with the copy/distribute dichotomy.
But here's a question I'm curious about: Can DMCA apply to a copy-protection mechanism that's being applied to non-copyrightable work? Based on my reading of https://www.copyright.gov/dmca/:
> First, it prohibits circumventing technological protection measures (or TPMs) used by copyright owners to control access to their works.
That's not the letter of the law, but an overview, but it does seem to suggest you can't bring a DMCA 1201 claim against someone circumventing copy-protection for uncopyrightable works.
> Whether or not model weights are copyrightable remains an open question.
And this is where the interaction with the wording of 1201 gets interesting, in my (non-professional) opinion!