Great, yet another attempt at solving this with yet another standard that not everyone will use. Why did you pick this attempt instead of something more common like Gracenote?
So, we really have not made any forward progress here
If those two open access sources become big enough, it is quite clear that someone will make a project to reconcile the data between them.
If any of those projects skyrockets the same way wikipedia skyrocketed, then the topic will be solved.
So from an outside perspective, it's fun to dream a little dream, but from a gray beard it's just yet another dream.