How to quickly check if a level was stolen.

If you think your level was stolen, or you find a level in a recent tab and think its stolen, you can check if its stolen:

Go to search options (top right) and select song, then custom, and enter the id of song that was used in your level. Then click the recent tab button, which will show you all the levels useing this song in order. Now check every single one (just need to enter the level and take a quick look) that is made AFTER you uploaded your level.