Sick system. In other developed countries you have copyright if you do it. You don´t need to register that right anywhere. Of course more difficult to prove but thats another story...
When I found out you had to register your stuff for copyright in certain countries, I was actually surprised ... I just thought having copyright for your work by default was normal.
I believe it's normal in all countries that are signatories to the Berne Convention, which is... apparently ~160 of the ~190 UN member states.
In the US you don't have to register anything either.