Get a list of Identifier objects. Idenfifiers have a 1..*:1 mapping with Observations.

### Available end points:

- `/identifier/` - Will list all Results in the database
- `/identifier.json` - Will return all Results in json format
- `/identifier/<object_id>/` - Returns Results object with that id

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `url`
- `idenfifierType`

### How to use filters:



`/identifier/?url=mst`

`/identifier.json?identifierType=ceda_abbreviation`

GET /api/v2/identifiers/?format=api&offset=400
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 11746,
    "next": "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/?format=api&limit=100&offset=500",
    "previous": "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/?format=api&limit=100&offset=300",
    "results": [
        {
            "ob_id": 423,
            "relatedTo": {
                "ob_id": 566,
                "uuid": "d0c9d0a55ac606763558ff03baba16a6",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11732241135516640",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 424,
            "relatedTo": {
                "ob_id": 566,
                "uuid": "d0c9d0a55ac606763558ff03baba16a6",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11732241366816642",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 425,
            "relatedTo": {
                "ob_id": 566,
                "uuid": "d0c9d0a55ac606763558ff03baba16a6",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11732241698416644",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 426,
            "relatedTo": {
                "ob_id": 566,
                "uuid": "d0c9d0a55ac606763558ff03baba16a6",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11732241994616646",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 427,
            "relatedTo": {
                "ob_id": 566,
                "uuid": "d0c9d0a55ac606763558ff03baba16a6",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11732242342316648",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 428,
            "relatedTo": {
                "ob_id": 566,
                "uuid": "d0c9d0a55ac606763558ff03baba16a6",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11732242619916650",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 429,
            "relatedTo": {
                "ob_id": 566,
                "uuid": "d0c9d0a55ac606763558ff03baba16a6",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11732242975916652",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 430,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dataent_11679938403412067",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 431,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "gfdex",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 432,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747888896919679",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 434,
            "relatedTo": {
                "ob_id": 643,
                "uuid": "8254273ca7985d4c3d447aa8cf317488",
                "short_code": "proj"
            },
            "url": "gdfex-project",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 435,
            "relatedTo": {
                "ob_id": 643,
                "uuid": "8254273ca7985d4c3d447aa8cf317488",
                "short_code": "proj"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__activity_11679943107512076",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 436,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747888620919677",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 437,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_1174788836419675",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 438,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747888083119673",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 439,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747887715319671",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 440,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747887424419669",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 441,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747887163919667",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 442,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747886821419665",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 443,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747886357219663",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 444,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747886002219661",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 445,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747885744719659",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 446,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747885426219657",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 447,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747885047819655",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 448,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_1174788474119653",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 449,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747884476319651",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 450,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747884167319649",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 451,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747883890419647",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 452,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747883549319645",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 453,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747883274919643",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 454,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747882814119641",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 455,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11747882449319639",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 456,
            "relatedTo": {
                "ob_id": 705,
                "uuid": "97f11faf981b8fd63ae3a8886ca5d284",
                "short_code": "ob"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11750798196419748",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 458,
            "relatedTo": {
                "ob_id": 707,
                "uuid": "fea5a699972c4649a95d53d0cb611044",
                "short_code": "comp"
            },
            "url": "um-computation",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 459,
            "relatedTo": {
                "ob_id": 707,
                "uuid": "fea5a699972c4649a95d53d0cb611044",
                "short_code": "comp"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__obs_11750794701719742",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 460,
            "relatedTo": {
                "ob_id": 708,
                "uuid": "4192ba25327840487cd487041642401f",
                "short_code": "ob"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11750797472119746",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 461,
            "relatedTo": {
                "ob_id": 710,
                "uuid": "0b3f027f334b4dbb9f7bffcc231a9655",
                "short_code": "comp"
            },
            "url": "HIRLAM",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 462,
            "relatedTo": {
                "ob_id": 710,
                "uuid": "0b3f027f334b4dbb9f7bffcc231a9655",
                "short_code": "comp"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dpt_11750790613819734",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 463,
            "relatedTo": {
                "ob_id": 640,
                "uuid": "77a24c3705599d03825ce9005a8610f8",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11750789740519732",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 464,
            "relatedTo": {
                "ob_id": 713,
                "uuid": "39b878b7689f4725aaeef97dd4094e8f",
                "short_code": "instr"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dpt_11737987710117088",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 465,
            "relatedTo": {
                "ob_id": 713,
                "uuid": "39b878b7689f4725aaeef97dd4094e8f",
                "short_code": "instr"
            },
            "url": "faam-dropsonde",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 466,
            "relatedTo": {
                "ob_id": 715,
                "uuid": "6a5cf2c6e142975e71ff340e0c41777d",
                "short_code": "coll"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dataent_chablis",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 467,
            "relatedTo": {
                "ob_id": 715,
                "uuid": "6a5cf2c6e142975e71ff340e0c41777d",
                "short_code": "coll"
            },
            "url": "chablis",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 468,
            "relatedTo": {
                "ob_id": 716,
                "uuid": "852ca922e7b0dc79f1ff8c0308059e8d",
                "short_code": "ob"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11721913630815474",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 470,
            "relatedTo": {
                "ob_id": 718,
                "uuid": "8bd58aa942197d06df223197af1ba8fc",
                "short_code": "proj"
            },
            "url": "chablis-project",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 471,
            "relatedTo": {
                "ob_id": 718,
                "uuid": "8bd58aa942197d06df223197af1ba8fc",
                "short_code": "proj"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__activity_activity_chablis",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 472,
            "relatedTo": {
                "ob_id": 719,
                "uuid": "f9b6a7829ae1429c92677ff67b9e5df1",
                "short_code": "plat"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__obs_1172191102715470",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 473,
            "relatedTo": {
                "ob_id": 719,
                "uuid": "f9b6a7829ae1429c92677ff67b9e5df1",
                "short_code": "plat"
            },
            "url": "caslab",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 474,
            "relatedTo": {
                "ob_id": 720,
                "uuid": "3802f318ade444a69cdc2d68eba51aab",
                "short_code": "instr"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dpt_11634276691110162",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 475,
            "relatedTo": {
                "ob_id": 720,
                "uuid": "3802f318ade444a69cdc2d68eba51aab",
                "short_code": "instr"
            },
            "url": "bas-2b-o3",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 476,
            "relatedTo": {
                "ob_id": 722,
                "uuid": "ea5818f8e83cb3c826faaaf6a60b59da",
                "short_code": "ob"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11721914680915476",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 477,
            "relatedTo": {
                "ob_id": 724,
                "uuid": "d97229e58e1744f8a026408f1f3e8cf8",
                "short_code": "instr"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dpt_1163427668710154",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 478,
            "relatedTo": {
                "ob_id": 724,
                "uuid": "d97229e58e1744f8a026408f1f3e8cf8",
                "short_code": "instr"
            },
            "url": "bas-aerolaser-co",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 479,
            "relatedTo": {
                "ob_id": 726,
                "uuid": "bc392c539a808caa495a4ff8d3b46f82",
                "short_code": "ob"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11721915105115478",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 480,
            "relatedTo": {
                "ob_id": 728,
                "uuid": "8fc4387e748e49aab3758a0e16d37469",
                "short_code": "instr"
            },
            "url": "http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dpt_1163427668910158",
            "identifierType": "moles2_url",
            "shortUrl": ""
        },
        {
            "ob_id": 481,
            "relatedTo": {
                "ob_id": 728,
                "uuid": "8fc4387e748e49aab3758a0e16d37469",
                "short_code": "instr"
            },
            "url": "bas-aerolaser-hcho",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 482,
            "relatedTo": {
                "ob_id": 730,
                "uuid": "e3d910cc016c7839958367c5e9ceb4e7",
                "short_code": "ob"
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