CC0

Creative Commons tool, released in 2009, by which a rightsholder waives all copyright and database rights in a work as far as the law allows, putting it in effect into the public domain. Wikidata's structured data is published under it.

Read the specification ↗ creativecommons.org

Part of the thread On what terms may anyone reuse it? proposes

published by

• Creative Commons organization 2001 [src]

alternative to

• Open Database License standard [src1][src2]

Sources

• https://creativecommons.org/public-domain/cc0/
• https://en.wikipedia.org/wiki/Creative_Commons_license