EPSG:5323 - ISN2004

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "GeographicCRS",
  "name": "ISN2004",
  "datum": {
    "type": "GeodeticReferenceFrame",
    "name": "Islands Net 2004",
    "ellipsoid": {
      "name": "GRS 1980",
      "semi_major_axis": 6378137,
      "inverse_flattening": 298.257222101
    }
  },
  "coordinate_system": {
    "subtype": "ellipsoidal",
    "axis": [
      {
        "name": "Geodetic latitude",
        "abbreviation": "Lat",
        "direction": "north",
        "unit": "degree"
      },
      {
        "name": "Geodetic longitude",
        "abbreviation": "Lon",
        "direction": "east",
        "unit": "degree"
      },
      {
        "name": "Ellipsoidal height",
        "abbreviation": "h",
        "direction": "up",
        "unit": "metre"
      }
    ]
  },
  "scope": "Geodesy.",
  "area": "Iceland - onshore and offshore.",
  "bbox": {
    "south_latitude": 59.96,
    "west_longitude": -30.87,
    "north_latitude": 69.59,
    "east_longitude": -5.55
  },
  "id": {
    "authority": "EPSG",
    "code": 5323
  }
}

{'crs_wkt': 'GEOGCRS["ISN2004",DATUM["Islands Net 2004",ELLIPSOID["GRS '
            '1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],CS[ellipsoidal,3],AXIS["geodetic '
            'latitude '
            '(Lat)",north,ORDER[1],ANGLEUNIT["degree",0.0174532925199433]],AXIS["geodetic '
            'longitude '
            '(Lon)",east,ORDER[2],ANGLEUNIT["degree",0.0174532925199433]],AXIS["ellipsoidal '
            'height '
            '(h)",up,ORDER[3],LENGTHUNIT["metre",1]],USAGE[SCOPE["Geodesy."],AREA["Iceland '
            '- onshore and '
            'offshore."],BBOX[59.96,-30.87,69.59,-5.55]],ID["EPSG",5323]]',
 'geographic_crs_name': 'ISN2004',
 'grid_mapping_name': 'latitude_longitude',
 'horizontal_datum_name': 'Islands Net 2004',
 'inverse_flattening': 298.257222101,
 'longitude_of_prime_meridian': 0.0,
 'prime_meridian_name': 'Greenwich',
 'reference_ellipsoid_name': 'GRS 1980',
 'semi_major_axis': 6378137.0,
 'semi_minor_axis': 6356752.314140356}