[KHRZ]

YouTube themselves built Content ID for companies to allow registering their "works" to aid them in automatically detecting copyright infringements. If YouTube's content ID entries doesn't include their creation date, which is one of the most basic pieces of metadata you could attach to a work, which not only is required information to determine when the copyright is valid, but would also make automatic copyright expiration trivial to implement and avoid sending false infringement notices to copyright holders, then it's fair to call YouTube Content ID a joke.