{
  "header" : {
    "request" : "http://nbn-resolving.org/json/urn:nbn:cz:aba001-0003p7",
    "timestamp" : "2012-05-18T09:02:21.551+0200",
    "status_code" : 745,
    "message" : {
      "language" : "en",
      "text" : "The given identifier is not valid"
    },
    "source" : "Resolver GUI",
    "organisation" : "Deutsche Nationalbibliothek / German National Library"
  },
  "data" : {
  }
}