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=11900
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 11942,
    "next": null,
    "previous": "https://catalogue.ceda.ac.uk/api/v2/identifiers/?format=api&limit=100&offset=11800",
    "results": [
        {
            "ob_id": 13913,
            "relatedTo": {
                "ob_id": 46018,
                "uuid": "f51fdbacebe740a8832cf75428558492",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/f51fdbacebe740a8832cf75428558492",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13914,
            "relatedTo": {
                "ob_id": 46019,
                "uuid": "dd2213cf6647460e916666960d4bce2d",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/dd2213cf6647460e916666960d4bce2d",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hb88ww"
        },
        {
            "ob_id": 13915,
            "relatedTo": {
                "ob_id": 46023,
                "uuid": "e229ccfbed8041cabc3dcb9a81f4150e",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/e229ccfbed8041cabc3dcb9a81f4150e",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hb9x83"
        },
        {
            "ob_id": 13916,
            "relatedTo": {
                "ob_id": 46024,
                "uuid": "cd07a8fab39d42e48f8657297a25b3f6",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/cd07a8fab39d42e48f8657297a25b3f6",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hb9x84"
        },
        {
            "ob_id": 13917,
            "relatedTo": {
                "ob_id": 45793,
                "uuid": "27e75b5f44604349bd563d9b898be953",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/27e75b5f44604349bd563d9b898be953",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hb89xh"
        },
        {
            "ob_id": 13918,
            "relatedTo": {
                "ob_id": 45794,
                "uuid": "bd771d1ecc8d4f5aa67b010e16753427",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/bd771d1ecc8d4f5aa67b010e16753427",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hb89xg"
        },
        {
            "ob_id": 13919,
            "relatedTo": {
                "ob_id": 45848,
                "uuid": "e86d5d9d7bd6430e98282475e2252226",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/e86d5d9d7bd6430e98282475e2252226",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hccqww"
        },
        {
            "ob_id": 13920,
            "relatedTo": {
                "ob_id": 45847,
                "uuid": "88dc78a226634c1c929ce93ba8eb0074",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/88dc78a226634c1c929ce93ba8eb0074",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hccqwx"
        },
        {
            "ob_id": 13921,
            "relatedTo": {
                "ob_id": 46108,
                "uuid": "3918ad29976d4075b6ff208b3a8781f0",
                "short_code": "proj"
            },
            "url": "NE/W00027X/1",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 13922,
            "relatedTo": {
                "ob_id": 43476,
                "uuid": "ccf69c5ea5184721906eb312d37d0673",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/ccf69c5ea5184721906eb312d37d0673",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13923,
            "relatedTo": {
                "ob_id": 45881,
                "uuid": "96388e7a347b4a5fa287f012eb5d6920",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/96388e7a347b4a5fa287f012eb5d6920",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13924,
            "relatedTo": {
                "ob_id": 43742,
                "uuid": "e6c4000905f346438f4c4c8d674b1637",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/e6c4000905f346438f4c4c8d674b1637",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13925,
            "relatedTo": {
                "ob_id": 45882,
                "uuid": "809e67dc32ac4679a5d6a18a35551213",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/809e67dc32ac4679a5d6a18a35551213",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13926,
            "relatedTo": {
                "ob_id": 45880,
                "uuid": "061fc86521c24c32b2b29aea08080195",
                "short_code": "coll"
            },
            "url": "https://dx.doi.org/10.5285/061fc86521c24c32b2b29aea08080195",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hb9bzk"
        },
        {
            "ob_id": 13927,
            "relatedTo": {
                "ob_id": 45879,
                "uuid": "a01f32f71c4f424d940aaa4a63fbbec4",
                "short_code": "coll"
            },
            "url": "https://dx.doi.org/10.5285/a01f32f71c4f424d940aaa4a63fbbec4",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hb9b2b"
        },
        {
            "ob_id": 13928,
            "relatedTo": {
                "ob_id": 46000,
                "uuid": "92114842e8204b76a764c65f4b78f160",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/92114842e8204b76a764c65f4b78f160",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13929,
            "relatedTo": {
                "ob_id": 46061,
                "uuid": "5e879d08e0b34ea5aa5aac2b3fdf2c2f",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/5e879d08e0b34ea5aa5aac2b3fdf2c2f",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hcb97h"
        },
        {
            "ob_id": 13930,
            "relatedTo": {
                "ob_id": 46067,
                "uuid": "7e19d1be1cc5486294155ad23534ffa0",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/7e19d1be1cc5486294155ad23534ffa0",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hcb97g"
        },
        {
            "ob_id": 13931,
            "relatedTo": {
                "ob_id": 45855,
                "uuid": "9675ee262e79485daa00a146f1300bf3",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/9675ee262e79485daa00a146f1300bf3",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hcb97d"
        },
        {
            "ob_id": 13932,
            "relatedTo": {
                "ob_id": 45856,
                "uuid": "115f52ba8a40487eacf3f81974a9cc8a",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/115f52ba8a40487eacf3f81974a9cc8a",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hb9txc"
        },
        {
            "ob_id": 13933,
            "relatedTo": {
                "ob_id": 45282,
                "uuid": "baeb32fd74cb49a1b67a6a4164ff0899",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/baeb32fd74cb49a1b67a6a4164ff0899",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hb9txf"
        },
        {
            "ob_id": 13934,
            "relatedTo": {
                "ob_id": 45286,
                "uuid": "82273fe59b784e7c914e1bd3049e3483",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/82273fe59b784e7c914e1bd3049e3483",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hb9txg"
        },
        {
            "ob_id": 13935,
            "relatedTo": {
                "ob_id": 45287,
                "uuid": "315d8e013696420192f1ea1d9191ca9c",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/315d8e013696420192f1ea1d9191ca9c",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hcb97j"
        },
        {
            "ob_id": 13936,
            "relatedTo": {
                "ob_id": 45669,
                "uuid": "5c4840f2437648bbb9e898587f67617c",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/5c4840f2437648bbb9e898587f67617c",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hccdt9"
        },
        {
            "ob_id": 13937,
            "relatedTo": {
                "ob_id": 46136,
                "uuid": "40577fca24d1483eb1fc9d6d6648e465",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/40577fca24d1483eb1fc9d6d6648e465",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hccd6m"
        },
        {
            "ob_id": 13938,
            "relatedTo": {
                "ob_id": 46139,
                "uuid": "88b5bdf6131e4c1cb7acb8bde984deda",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/88b5bdf6131e4c1cb7acb8bde984deda",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13939,
            "relatedTo": {
                "ob_id": 46138,
                "uuid": "1854bb17ec454841b04e243a1352f25a",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/1854bb17ec454841b04e243a1352f25a",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13940,
            "relatedTo": {
                "ob_id": 46132,
                "uuid": "187d44d4dafd4d53917794643765765f",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/187d44d4dafd4d53917794643765765f",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13941,
            "relatedTo": {
                "ob_id": 46133,
                "uuid": "c7393fdc2c974071a2efd7f8601b1bab",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/c7393fdc2c974071a2efd7f8601b1bab",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13942,
            "relatedTo": {
                "ob_id": 46135,
                "uuid": "bfaf1bbf650a4a48ae33e4424b66c66d",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/bfaf1bbf650a4a48ae33e4424b66c66d",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13943,
            "relatedTo": {
                "ob_id": 46137,
                "uuid": "5a99fe8bd1364e2f85f9fde21e494ae1",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/5a99fe8bd1364e2f85f9fde21e494ae1",
            "identifierType": "doi",
            "shortUrl": "https://doi.org/10/hccd6n"
        },
        {
            "ob_id": 13944,
            "relatedTo": {
                "ob_id": 46134,
                "uuid": "d04207b551674c07801b7d4e6d883e50",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/d04207b551674c07801b7d4e6d883e50",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13946,
            "relatedTo": {
                "ob_id": 46160,
                "uuid": "2de684c1211e4d89a5deba150eeb3689",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/2de684c1211e4d89a5deba150eeb3689",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13947,
            "relatedTo": {
                "ob_id": 46172,
                "uuid": "417bfd527140407e8960d40fc3bf670c",
                "short_code": "proj"
            },
            "url": "NE/S007407/1",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 13948,
            "relatedTo": {
                "ob_id": 45723,
                "uuid": "07badf9fb0f447cb90d63579bd725ecd",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/07badf9fb0f447cb90d63579bd725ecd",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13949,
            "relatedTo": {
                "ob_id": 45725,
                "uuid": "cb4a019f65434da79ec212c2941e0253",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/cb4a019f65434da79ec212c2941e0253",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13950,
            "relatedTo": {
                "ob_id": 45724,
                "uuid": "1599565404ec40aa8233bbe8fbe51e8c",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/1599565404ec40aa8233bbe8fbe51e8c",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13951,
            "relatedTo": {
                "ob_id": 45795,
                "uuid": "d97ab4186e59417db70138662996f28a",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/d97ab4186e59417db70138662996f28a",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13952,
            "relatedTo": {
                "ob_id": 45796,
                "uuid": "3ff20589e41d4fd0a573653bfccb5c59",
                "short_code": "ob"
            },
            "url": "https://dx.doi.org/10.5285/3ff20589e41d4fd0a573653bfccb5c59",
            "identifierType": "doi",
            "shortUrl": ""
        },
        {
            "ob_id": 13953,
            "relatedTo": {
                "ob_id": 31759,
                "uuid": "f8be5e3e0cba4c45b6997b45ee648c86",
                "short_code": "comp"
            },
            "url": "UMSLIMCAT",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 13954,
            "relatedTo": {
                "ob_id": 1651,
                "uuid": "14814772f5754f61b437899753ec66b1",
                "short_code": "comp"
            },
            "url": "p-TOMCAT-QUEST",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        },
        {
            "ob_id": 13955,
            "relatedTo": {
                "ob_id": 46204,
                "uuid": "8d3ba333b9e74674ab8ad462057f55be",
                "short_code": "proj"
            },
            "url": "aquable",
            "identifierType": "ceda_abbreviation",
            "shortUrl": ""
        }
    ]
}