When you take someone to court over a copyright violation having proof that you control a wallet that was the first to have minted an NFT representing the work in question would be one piece of evidence that you may be the original author.
If there is other evidence, e.g. the other party has a YouTube account which uploaded a video years ago of the work, and is publicly known to be the author of the work, then the judge will probably rule the NFT is not sufficient evidence of ownership/you are not the copyright holder.
There is nothing technically stopping people uploading NFTs of things that they don’t own the rights too. That won’t hold up in court though, not even the court of public opinion.
If there is other evidence, e.g. the other party has a YouTube account which uploaded a video years ago of the work, and is publicly known to be the author of the work, then the judge will probably rule the NFT is not sufficient evidence of ownership/you are not the copyright holder.
There is nothing technically stopping people uploading NFTs of things that they don’t own the rights too. That won’t hold up in court though, not even the court of public opinion.