There is already have a blend of exactly what you desire in the US. But to answer your question, in the case of github copilot it does the checking for you, so

There is already have a blend of exactly what you desire in the US. But to answer your question, in the case of github copilot it does the checking for you, so no you don't need a list of all the sources. Regarding you wanting to opt-out of training, that's fine you can already do that for many large models. But likely doing that will become the equivalent of putting your works in a safe where no one but you will ever end up reading them or finding them. Banning all AI training is the equivalent to banning search with any modern search engine. edit: Also, note that you are already on the hook for not infringing patents, which if you were to try to do "perfectly" like you imply with copyright, then you need to search/read/understand the entire body of published patents. A task that is clearly not possible. Yet patent law functions (unfortunately).