Yes, we do have music in the Storyblocks library that are registered with PROs. If a track is registered with a Performance Rights Organization (PRO), we do indicate which PRO it is affiliated with under the more details section. All Storyblocks Label music is PRO-free, so it can be used in public performances without requiring any additional clearances.
If you’re using a song that has PRO assignments and you’re using it in a public performance or use case, you’ll need to reach out to the performing rights organization that manages that song to determine what license you need. Learn more about Performance Rights Organizations in our dedicated article.