Link Search Menu Expand Document
Consortium of European Social Science Data Archives

URN Handling and Resolution

General Information

CESSDA uses URNs, as required by the DDI standards. The URN agency and sub-agencies are registered at the DDI Agency Registry.

CESSDA does not provide URN resolution and there is currently no central resolver.

We have several sub-agencies for the various services

  • int.cessda.cv - CESSDA owned vocabularies, not the service
  • int.cessda.elsst - ELSST Thesaurus
  • int.cessda.eqb - EQB

CVS

  • Content hosted using CVS is canonically exposed with a URN

ELSST

ELSST’s canonical URLs are resolved to the Skosmos instance using redirects. Every concept has a unique identifier which is mapped using the URI template.

  • URN form: urn:ddi:int.cessda.elsst:{uuid}:{version}
  • URI form: https://elsst.cessda.eu/id/{uuid}

We do not have a way to resolve versions at the moment.

The form to use in the SKOS representation is still under discussion.