Clearly there needs to be a single legal, authoritative, and publicly accessible source for any music product's (public) metadata. Before it gets aired by anyone. A good model for this might be DOI ('Digital object identifier'). Anyone- music companies, artists, stores and streamers - would get a number for each published title where they could then find all the related metadata. Including reliable sources that can be queried for (private) legal details.
It would seem like the rights orgs like ASCAP, BMI, Harry Fox, etc etc should have been all over this long ago. But maybe it'd mean their extinction. Or it would would complicate the back-room deals.