ccValidator is an on-line service which parses Creative Commons licenses, validates the RDF and displays their contents in human readable form. It is useful for ensuring that your license accurately reflects the rights you wish to reserve (or not). The service is available from the Creative Commons at http://validator.creativecommons.org.
This service was first created in response to a list of developer challenges published by the Creative Commons and totally revamped during Google Summer of Code 2008. Suggestions and bug reports are always welcome. You can e-mail them to firstname.lastname@example.org.
The validator consists of a Pylons web app called "validator" and a Python support module called "libvalidator." libvalidator handles RDF in many formats; RDF in a comment, RDFa, or inline RDF/XML. HTML is processed by html5lib, and the RDF is passed on to RDFlib. The CC RDF information is accessed via the cc.license Python module that wraps the Creative Commons RDF data.
The current implementation is available in git; FIXME! It was in Darcs at yergler.net. We are currently working on updating this implementation with some new features; the source for the new implementation will reside in the Creative Commons Subversion repository.