anchor.diff:                  "value":  "41.3763726, 2.1864475",
                   "type": "geo:point",
                   "crs": "WGS84"
  -            },
  +            }
           }
   
   + Response 201
  
positive.code:                         "temperature"
                      ]
                  },
                  "callback": "http://localhost:1234",
                  "options": {
                      "duration": "PT1M"
                  }
              }
          ]
  
  ### Context provider registration [POST /v2/registrations]
  
  Creates a new registration. This is typically used for associating context providers
  to certain data.
  The registration is represented by a JSON object as described at the beginning of this section.
  
  + Request (application/json)
  
  
negative.code:                 ]
              },
              "callback":  "http://localhost:1234",
              "duration": "PT1M"
          }
  
  + Response 201
  