Birthright --- Copyright

According to the Copyright Law of the People's Republic of China, ... the work of Chinese citizens, legal persons or other organizations, whether or not they are published, shall be entitled to copyright in accordance with this law. Works of foreigners and stateless persons according to its authors state or habitual residence in the same Chinese agreement or to participate in the international treaties of the copyright, protected by this law. If the works of aliens or stateless persons are first published within the territory of the People's Republic of China, they shall enjoy copyright in accordance with this law...

Copyright in most countries today is automatic on "fixation" – it applies as soon as the work is fixed in some tangible medium. This standard is established internationally by the Berne Convention (1886), which most countries have signed on to since.

The purpose of copyright registration is to record the information on file of the date, content, published place, author. In case there is a legal claim or case of infringement, the copyright owner can produce a copy of the work from an official government source.