I was talking more generally about the "You can't patent or copyright code that was generated with an LLM".

Who can prove that I didn't write the code myself? And if I did, how am I to prove it?

That goes in both directions.

It's not like there is a watermark in the code telling the whole wide world that this was AI generated or human made.

So I write code (with or without an AI assistant) and claim copyright... they generate the same code. I sue them.

How does any of us prove that we wrote the code by hand?