Official International Copyright Protection and Registration Service.
Copyright Registration Service (CRS) is a service provided by the Intellectual Property Rights Office (also referred to as the IP Rights Office and the IPRO).
By registering your patents, logo, copyrightable materials like Articles, Logo, Poems, Codes (Programs), Apps, Websites and everything else which belongs to your business and you don't want to get stolen by other people.
Most of the countries are the part of the union. You can apply to the service only if you belong to a country which is the member of the organization.
If you are looking a place to register your copyright, this is the right place. Further, you can also check your copyright status through their portal.