is it possible to delete your own duplicate uploads?

I just uploaded post #3446528, and then noticed that it had already been uploaded (although the duplicate detection didn't catch it, possibly because the tumblr blog had since gotten its own domain); is there a way to delete the duplicate on my own, or is that something mods do?

Tag it as a duplicate and it should be deleted at the end of the three-day moderation time.

cool, thanks!