You own your work. So does everyone else.
Uploading to RiseUp grants us a licence to host, transcode and stream your video so the platform can function. It does not transfer ownership. Delete the upload and the licence ends.
Send the URL of the video, a description of the work you own, proof of ownership and your contact details to copyright@riseup.example. Complete reports are actioned within 48 hours.
If your video was removed and you believe that was wrong, reply to the removal notice with your reasoning. Repeat bad-faith claims cost the claimant their reporting privileges.