http://tstzmgqansvqfzr3qrkehszmlhjqbpqp7pwncrzr72ohyygrnbuu26qd.onion/articles/real%20names
Meanwhile for administrative documents (rent, university, …) you should be able to just ask for another name to be used or use another one, which can also serve as testification. It is not perfect and still causes trouble (such as the mayor refusing the name change even if they shouldn't be able to), my stance for years has been "whatever name you give me or other people use, I'll consider it a name".