Yes, but the only officially recognized registration of copyright in Canada is through CIPO. The rest is all evidence to prove you created something first, which goes to attacking someone else's alleged copyright. If you can show you created it, you may be able to defeat a registered copyright. Remember, I said it's a "rebuttable presumption". (Of course, you could have assigned copyright, too, so that isn't the end of the story.) SOCAN is a whole other matter. That is not the law of copyright. It's a mechanism for paying copyright holders.