EPSG:10651 - GR96 + GLMSL(2023) depth

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "CompoundCRS",
  "name": "GR96 + GLMSL(2023) depth",
  "components": [
    {
      "type": "GeographicCRS",
      "name": "GR96",
      "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "Greenland 1996",
        "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"
          }
        ]
      }
    },
    {
      "type": "VerticalCRS",
      "name": "GLMSL(2023) depth",
      "datum": {
        "type": "VerticalReferenceFrame",
        "name": "Greenland Mean Sea Level (2023)"
      },
      "coordinate_system": {
        "subtype": "vertical",
        "axis": [
          {
            "name": "Depth",
            "abbreviation": "D",
            "direction": "down",
            "unit": "metre"
          }
        ]
      }
    }
  ],
  "scope": "Reversible hydroid model transformation.",
  "area": "Greenland - offshore.",
  "bbox": {
    "south_latitude": 56.38,
    "west_longitude": -75,
    "north_latitude": 87.03,
    "east_longitude": 7.99
  },
  "id": {
    "authority": "EPSG",
    "code": 10651
  }
}

{'crs_wkt': 'COMPOUNDCRS["GR96 + GLMSL(2023) '
            'depth",GEOGCRS["GR96",DATUM["Greenland 1996",ELLIPSOID["GRS '
            '1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],CS[ellipsoidal,2],AXIS["geodetic '
            'latitude '
            '(Lat)",north,ORDER[1],ANGLEUNIT["degree",0.0174532925199433]],AXIS["geodetic '
            'longitude '
            '(Lon)",east,ORDER[2],ANGLEUNIT["degree",0.0174532925199433]]],VERTCRS["GLMSL(2023) '
            'depth",VDATUM["Greenland Mean Sea Level '
            '(2023)"],CS[vertical,1],AXIS["depth '
            '(D)",down,LENGTHUNIT["metre",1]]],USAGE[SCOPE["Reversible hydroid '
            'model transformation."],AREA["Greenland - '
            'offshore."],BBOX[56.38,-75,87.03,7.99]],ID["EPSG",10651]]',
 'geographic_crs_name': 'GR96',
 'geopotential_datum_name': 'Greenland Mean Sea Level (2023)',
 'grid_mapping_name': 'latitude_longitude',
 'horizontal_datum_name': 'Greenland 1996',
 '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}