Unless you have explicit permission from all concerned parties, it is not possible to register songs with uncleared samples.
Example: you write a song containing a Michael Jackson sample and you don't have clearance from Jackson's label or publisher to use this sample. It's thus not possible to register your song for the collection of songwriting or publishing royalties.
Songtrust gives music makers the easiest way to get paid publishing royalties from the US and abroad.
We help bands and songwriters register their songs with agencies around the world to collect royalties generated from their songs being played on-air, online, on TV and many other places.