has part has part has_part denotes centrally registered identifier symbol centrally registered identifier 2014-05-05: In defining this term we take no position on what the CRID denotes. In particular do not assume it denotes a *record* in the CRID registry (since the registry might not have 'records'). Alan, IAO call 20101124: potentially the CRID denotes the instance it was associated with during creation. An information content entity that consists of a CRID symbol and additional information about the CRID registry to which it belongs. Note, IAO call 20101124: URIs are not always CRID, as not centrally registered. We acknowledge that CRID is a subset of a larger identifier class, but this subset fulfills our current needs. OBI PURLs are CRID as they are registered with OCLC. UPCs (Universal Product Codes from AC Nielsen)are not CRID as they are not centrally registered. centrally registered identifier registry identifier