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Property:Cc:requires

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This property is used to represent a requirement that must be fulfilled.

cc:requires (Creative Commons Rights Expression Language).

The known values for this property are:

  • Notice (copyright and license notices be kept intact)
  • Attribution (credit be given to copyright holder and/or author)
  • Share Alike (derivative works be licensed under the same terms or compatible terms as the original work)
  • Source Code (source code (the preferred form for making modifications) must be provided when exercising some rights granted by the license)
  • Copyleft (derivative and combined works must be licensed under specified terms, similar to those on the original work)
  • Lesser Copyleft (derivative works must be licensed under specified terms, with at least the same conditions as the original work; combinations with the work may be licensed under different terms)