Jonas Öberg – Developer’s corner: A distributed metadata registry:
“Anyone should be able to run their own registry for their own works or works in which they have an interest.
[…] Standards such as ccREL provide a way in which a user can look up the rights metadata by visiting a URL associated with the work and making use of RDFa metadata on that URL to validate a license. That’s a useful practice, since RDFa provides a machine readable semantic mapping for the metadata while ensuring that the URL could also contain human readable information.
[…] Let’s further imagine that the unique identifier was always a URL.”