Yes. If you want to make a release available on Subvert before anywhere else, you can mark it as a Subvert Exclusive.
To set an exclusive:
- In the upload flow or release editor, find the This is a Subvert Exclusive toggle under Album Details
- Toggle it on
- Set a date for when the exclusivity ends - or leave it open-ended if you want it to be exclusive indefinitely
While the exclusive is active, the release will be clearly marked on your page. After the exclusivity date passes, you're free to release it elsewhere.