The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse
3. Copyright protection shall be granted only to the form of expression of a work and shall not apply to any ideas, processes, methods or mathematical concepts.
4. Copyright to a work is not connected with the property right to the material object on which the work is expressed.
Article 7. Objects not covered by copyright protection
The following items shall not be objects of copyright:
Official documents (laws, court decisions, other texts of legislative, administrative or judicial character) and their official translations;
State emblems and official signs (flags, arms, anthems, orders, monetary signs and other State symbols and official signs);
Folk creativity (folklore) expressions;
News of day, data about various events and the facts of information character