As a knowledgeable professional in the music business upon completion of any of songwriting work or sound works project I take the necessary time out to copyright and register all material through The US Library of Congress https://www.copyright.gov/. I have a personal friend of mine who works there for many years and has been a great resource for me to help understand the ever changing and new (online) copyright registration process. If you were to conduct a name search you of me (Greg Hunter) you will find a bunch of (songs) copyrights registered over many years.