How can I prove that I have ownership over code I wrote myself, and that it isn’t copyrighted somewhere in the world? How can anyone prove that code is written by a human or AI (if you don’t commit obvious AI harness files and folders)?

Developers also “generate” code and are also “trained” on code they written as freelancers or employees for others which is potentially copyrighted. In that aspect just because it’s written by hand, doesn’t imply the writer has copyright on it.

How can I prove that I have ownership over code I wrote myself, and that it isn’t copyrighted somewhere in the world?

As long as you had no access to that code and have some proof of that then that should be quite easy. I.e. you never worked for a company that claims copyright on something you wrote.

Developers also “generate” code and are also “trained” on code they written as freelancers or employees for others which is potentially copyrighted.

Then you need to do a proper clean-room rewrite with people who had provably no access to the original code.

Well, if I use AI, it’s still considered I wrote the code, just with help. And I personally never saw the code nor had access to it. Also, whatever I implemented must be clean room implementation then. If it was that simple, then we would not have the copyright issue to begin with. LLM can’t be an author nor can it be legally liable.

What? The point I was trying to make is that AI generated content is going to be treated as CC licensed. It is difficult to incorporate under other FOSS projects. Mostly considering that it doesn’t exactly distinguish between code, library, binary and patents. It’s simplier to avoid it altogether if your primary mission is FOSS

Considering your comment about verification of authorship, it’s likely to be treated the same as it is now. You are the author, unless proven otherwise. And you are right. Even if you are the author and wrote every single code yourself, you can infringe on someones paten