Shortest track duration

.json

{
  "took" : 8,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "failed" : 0
  },
  "hits" : {
    "total" : 8392,
    "max_score" : null,
    "hits" : [ {
      "_index" : "library",
      "_type" : "track",
      "_id" : "AVAy4e9OSEui9dB0xEmH",
      "_score" : null,
      "fields" : {
        "name" : [ "Glock II" ],
        "total_time" : [ 5 ],
        "artist" : [ "Enhancer" ],
        "album" : [ "Street Trash" ]
      },
      "sort" : [ 5 ]
    } ]
  }
}