EPSG:8803 - NAD83 / Alaska zone 1 + NAVD88 height

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "CompoundCRS",
  "name": "NAD83 / Alaska zone 1 + NAVD88 height",
  "components": [
    {
      "type": "ProjectedCRS",
      "name": "NAD83 / Alaska zone 1",
      "base_crs": {
        "name": "NAD83",
        "datum": {
          "type": "GeodeticReferenceFrame",
          "name": "North American Datum 1983",
          "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"
            }
          ]
        },
        "id": {
          "authority": "EPSG",
          "code": 4269
        }
      },
      "conversion": {
        "name": "SPCS83 Alaska zone 1 (meter)",
        "method": {
          "name": "Hotine Oblique Mercator (variant A)",
          "id": {
            "authority": "EPSG",
            "code": 9812
          }
        },
        "parameters": [
          {
            "name": "Latitude of projection centre",
            "value": 57,
            "unit": "degree",
            "id": {
              "authority": "EPSG",
              "code": 8811
            }
          },
          {
            "name": "Longitude of projection centre",
            "value": -133.666666666667,
            "unit": "degree",
            "id": {
              "authority": "EPSG",
              "code": 8812
            }
          },
          {
            "name": "Azimuth at projection centre",
            "value": 323.130102361111,
            "unit": "degree",
            "id": {
              "authority": "EPSG",
              "code": 8813
            }
          },
          {
            "name": "Angle from Rectified to Skew Grid",
            "value": 323.130102361111,
            "unit": "degree",
            "id": {
              "authority": "EPSG",
              "code": 8814
            }
          },
          {
            "name": "Scale factor at projection centre",
            "value": 0.9999,
            "unit": "unity",
            "id": {
              "authority": "EPSG",
              "code": 8815
            }
          },
          {
            "name": "False easting",
            "value": 5000000,
            "unit": "metre",
            "id": {
              "authority": "EPSG",
              "code": 8806
            }
          },
          {
            "name": "False northing",
            "value": -5000000,
            "unit": "metre",
            "id": {
              "authority": "EPSG",
              "code": 8807
            }
          }
        ]
      },
      "coordinate_system": {
        "subtype": "Cartesian",
        "axis": [
          {
            "name": "Easting",
            "abbreviation": "X",
            "direction": "east",
            "unit": "metre"
          },
          {
            "name": "Northing",
            "abbreviation": "Y",
            "direction": "north",
            "unit": "metre"
          }
        ]
      }
    },
    {
      "type": "VerticalCRS",
      "name": "NAVD88 height",
      "datum": {
        "type": "VerticalReferenceFrame",
        "name": "North American Vertical Datum 1988"
      },
      "coordinate_system": {
        "subtype": "vertical",
        "axis": [
          {
            "name": "Gravity-related height",
            "abbreviation": "H",
            "direction": "up",
            "unit": "metre"
          }
        ]
      }
    }
  ],
  "scope": "Engineering survey, topographic mapping.",
  "area": "United States (USA) - Alaska - east of 141°W; i.e. Panhandle.",
  "bbox": {
    "south_latitude": 54.61,
    "west_longitude": -141,
    "north_latitude": 60.35,
    "east_longitude": -129.99
  },
  "id": {
    "authority": "EPSG",
    "code": 8803
  }
}

{'crs_wkt': 'COMPOUNDCRS["NAD83 / Alaska zone 1 + NAVD88 '
            'height",PROJCRS["NAD83 / Alaska zone '
            '1",BASEGEOGCRS["NAD83",DATUM["North American Datum '
            '1983",ELLIPSOID["GRS '
            '1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4269]],CONVERSION["SPCS83 '
            'Alaska zone 1 (meter)",METHOD["Hotine Oblique Mercator (variant '
            'A)",ID["EPSG",9812]],PARAMETER["Latitude of projection '
            'centre",57,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8811]],PARAMETER["Longitude '
            'of projection '
            'centre",-133.666666666667,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8812]],PARAMETER["Azimuth '
            'at projection '
            'centre",323.130102361111,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8813]],PARAMETER["Angle '
            'from Rectified to Skew '
            'Grid",323.130102361111,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8814]],PARAMETER["Scale '
            'factor at projection '
            'centre",0.9999,SCALEUNIT["unity",1],ID["EPSG",8815]],PARAMETER["False '
            'easting",5000000,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False '
            'northing",-5000000,LENGTHUNIT["metre",1],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["easting '
            '(X)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["northing '
            '(Y)",north,ORDER[2],LENGTHUNIT["metre",1]]],VERTCRS["NAVD88 '
            'height",VDATUM["North American Vertical Datum '
            '1988"],CS[vertical,1],AXIS["gravity-related height '
            '(H)",up,LENGTHUNIT["metre",1]]],USAGE[SCOPE["Engineering survey, '
            'topographic mapping."],AREA["United States (USA) - Alaska - east '
            'of 141°W; i.e. '
            'Panhandle."],BBOX[54.61,-141,60.35,-129.99]],ID["EPSG",8803]]',
 'geopotential_datum_name': 'North American Vertical Datum 1988'}