Proof of ownership can be established through official registration, but other methods such as dated drafts, digital timestamps, and contracts with collaborators can also serve as evidence. In disputes, being able to show a clear creation timeline is crucial. A3Tunes recommends that artists keep thorough records of their creative process, store original files securely, and consider registering their work with copyright offices or trusted digital rights management platforms to strengthen their claim to ownership if legal action becomes necessary.