1. An apparatus comprising: a memory storing a resource descriptor associated with a specific resource, the resource descriptor comprising a uniform resource identifier (URI) and a signature, wherein the signature is not a uniform resource identifier; and a controller coupled to the memory, the controller initiating an access process to access the specific resource associated with the resource descriptor, the access process confirming a candidate resource is the specific resource associated with the resource descriptor responsive to the candidate resource being located using the URI, and locating one or more other candidate resources using the signature responsive to no candidate resources being located using the URI or responsive to the candidate resource not being confirmed as the specific resource.