CC REL

CC REL is described in CC REL: The Creative Commons Rights Expression Language (pdf), published March 3, 2008. An overview of the vocabulary is available with the namespace description.

CC REL metadata, as encoded using RDFa or XMP, may be embedded in a variety of filetypes. Additional confidence may be added to embedded metadata through the use of web statement.

We have also begun to explore extending CC REL for use by digital copyright registries. See CC Network Development's metadata documentation.

CC REL by Example provides examples of many web deployment scenarios with thorough explanations and is the best place to start if you want a HOWTO or to understand through examples which you can copy and experiment with.

Presentations

• A slightly updated version of the CC REL paper is chapter 10 of The Digital Public Domain: Foundations for an Open Culture (pdf), 2012
• Creative Commons Technology Summit 2009-06-26, multiple
• Creative Commons Technology Summit 2008-12-12, multiple
• An Introduction to CC REL and The Use of Semantic Technology at Creative Commons
• CC REL update
• Creative Commons Technology Summit 2008-06-18, multiple
• Deploying the Semantic Web with ccREL and RDFa
• COMMUNIA January 2008

Examples

Simple

My Book by Jon Phillips is licensed under a 

<a rel="license" href="http://creativecommons.org/licenses/by-nc/3.0/">Creative Commons 
Attribution Non-Commercial 3.0 License</a>. 

Permissions beyond the scope of this license may be available at 
<a xmlns:cc="http://creativecommons.org/ns#" rel="cc:morePermissions" 
href="http://somecompany.com/revenue_sharing_agreement">somecompany.com</a>.

Advanced

<span xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/terms/">

<span rel="dc:type" href="http://purl.org/dc/dcmitype/Text" property="dc:title">My Book</span> by 
<a rel="cc:attributionURL" property="cc:attributionName" href="http://rejon.org/my_book">Jon Phillips</a> 

is licensed under a 

<a rel="license" href="http://creativecommons.org/licenses/by-nc/3.0/">Creative Commons 
Attribution Non-Commercial 3.0 License</a>. 

<span rel="dc:source" href="http://deerfang.org/her_book"/>
Permissions beyond the scope of this license may be available at 
<a rel="cc:morePermissions" 
href="http://somecompany.com/revenue_sharing_agreement">somecompany.com</a>.

</span>