EPSG:20037 - NAD83(CSRS)v4 + CGVD2013a(2002) height

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "CompoundCRS",
  "name": "NAD83(CSRS)v4 + CGVD2013a(2002) height",
  "components": [
    {
      "type": "GeographicCRS",
      "name": "NAD83(CSRS)v4",
      "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "North American Datum of 1983 (CSRS) version 4",
        "anchor_epoch": 2002,
        "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": "CGVD2013a(2002) height",
      "datum": {
        "type": "VerticalReferenceFrame",
        "name": "Canadian Geodetic Vertical Datum of 2013 (CGG2013a) epoch 2002",
        "anchor_epoch": 2002
      },
      "coordinate_system": {
        "subtype": "vertical",
        "axis": [
          {
            "name": "Gravity-related height",
            "abbreviation": "H",
            "direction": "up",
            "unit": "metre"
          }
        ]
      }
    }
  ],
  "scope": "Spatial referencing.",
  "area": "Canada - onshore and offshore - Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Northwest Territories; Nova Scotia; Nunavut; Ontario; Prince Edward Island; Quebec; Saskatchewan; Yukon.",
  "bbox": {
    "south_latitude": 38.21,
    "west_longitude": -141.01,
    "north_latitude": 86.46,
    "east_longitude": -40.73
  },
  "id": {
    "authority": "EPSG",
    "code": 20037
  }
}

{'crs_wkt': 'COMPOUNDCRS["NAD83(CSRS)v4 + CGVD2013a(2002) '
            'height",GEOGCRS["NAD83(CSRS)v4",DATUM["North American Datum of '
            '1983 (CSRS) version 4",ELLIPSOID["GRS '
            '1980",6378137,298.257222101,LENGTHUNIT["metre",1]],ANCHOREPOCH[2002]],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["CGVD2013a(2002) '
            'height",VDATUM["Canadian Geodetic Vertical Datum of 2013 '
            '(CGG2013a) epoch '
            '2002",ANCHOREPOCH[2002]],CS[vertical,1],AXIS["gravity-related '
            'height (H)",up,LENGTHUNIT["metre",1]]],USAGE[SCOPE["Spatial '
            'referencing."],AREA["Canada - onshore and offshore - Alberta; '
            'British Columbia; Manitoba; New Brunswick; Newfoundland and '
            'Labrador; Northwest Territories; Nova Scotia; Nunavut; Ontario; '
            'Prince Edward Island; Quebec; Saskatchewan; '
            'Yukon."],BBOX[38.21,-141.01,86.46,-40.73]],ID["EPSG",20037]]',
 'geographic_crs_name': 'NAD83(CSRS)v4',
 'geopotential_datum_name': 'Canadian Geodetic Vertical Datum of 2013 '
                            '(CGG2013a) epoch 2002',
 'grid_mapping_name': 'latitude_longitude',
 'horizontal_datum_name': 'North American Datum of 1983 (CSRS) version 4',
 '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}