If my business depended on a legal fiction to be true and I had invested a whole pile of effort + money into it being so then I would argue at every opportunity that 'of course it is legal'. But that's just a version of fake-it-until-you-make-it and in practice not all of those bets pay off.
The fact that meaningful contribution has not been defined is a strong signal that things are not nearly as clear cut as you make them out to be. Until there is a ruling that clearly establishes that the person that generated the prompt owns the copyright on the code I think it is misleading to suggest that this is already the case, your lawyers are not the lawyers of the parties that will end up hurt if it ends up not being so.
For contrast: we have a very clear idea on what things are copyrighted and in general these things do not rest on a foundation of IP appropriated from others outside of the license terms. The fact that the infringement is fine grained and effectively harms the rights of 1000s or more individuals doesn't change the heart of the matter, whoever wrote the code: it wasn't you.
Given your bias I'm not surprised that this would be your argument though, effectively you have created a copyright laundromat using code that you were nominally the steward of and not the owner but whether it stands long term or not is not up to your lawyers.
Prove I did not write my code if I do not tell you which tools I used. =}
That's not how that works.
You warrant you wrote the code yourself, then it is found your code infringes on code owned by other entities. Now you have a tough choice: admit you lied about writing your code yourself tainting all of the code you claim you wrote since these tools became available or stand and take the infringement penalty which could be very substantial.
Judges and courts don't like playing silly games like this.
I've sued two parties for copyright infringement and won and a third settled out of court for a substantial sum. You don't tell a judge you don't need to prove you wrote the code, that's an automatic loss. Then there are such things as expert witnesses who will interview you and check how much you know about the code you claim you wrote.
>I've sued two parties for copyright infringement and won and a third settled out of court for a substantial sum. You don't tell a judge you don't need to prove you wrote the code, that's an automatic loss. Then there are such things as expert witnesses who will interview you and check how much you know about the code you claim you wrote.
This doesn't really make sense; in no way can an "expert" interview definitively assert someone wrote a piece of code or not, especially if the person has access to the code beforehand.
They don't need to prove it 100%. They just have to show that it's likely you did.
I believe the standard can be as low as "more likely than not".
Obviously, we aren’t going to agree on this at all. I hope you have a good day.