mixcloud- royalties

[Geeselad]

noticed on mixcloud that the track identifiyer, that pops up to ident a track often gives you the option of buying music, but Sometimes the artist aren't the originals! for instance bob James's classic 'nautilaus just popped up on a mix by..... Copycat?? this has happened on several tracks before, does it mean that the orginal artist wont get credit or funds for  the prospective purchase??