EPSG:9503 — CIGD11 + GCVD54 height (ft)

COMPOUNDCRS[
    "CIGD11 + GCVD54 height (ft)",
    GEOGCRS[
        "CIGD11",
        DATUM[
            "Cayman Islands Geodetic Datum 2011",
            ELLIPSOID[
                "GRS 1980",
                6378137,
                298.257222101,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7019]
            ],
            ID["EPSG",1100]
        ],
        CS[ellipsoidal,2,ID["EPSG",6422]],
        AXIS["Geodetic latitude (Lat)",north],
        AXIS["Geodetic longitude (Lon)",east],
        ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
        ID["EPSG",6135]
    ],
    VERTCRS[
        "GCVD54 height (ft)",
        VDATUM["Grand Cayman Vertical Datum 1954",ID["EPSG",1097]],
        CS[vertical,1,ID["EPSG",1030]],
        AXIS["Gravity-related height (H)",up],
        LENGTHUNIT["foot",0.3048,ID["EPSG",9002]],
        GEOIDMODEL["CIGD11 to GCVD54 height (ft) (1)",ID["EPSG",6138]],
        ID["EPSG",6130]
    ],
    ID["EPSG",9503]
]

+proj=longlat +ellps=GRS80 +vunits=ft +no_defs +type=crs

proj4.defs("EPSG:9503", "+proj=longlat +ellps=GRS80 +vunits=ft +no_defs +type=crs");

{
  "type": "CoordinateReferenceSystem",
  "code": 9503,
  "name": "CIGD11 + GCVD54 height (ft)",
  "kind": "compound",
  "area": "Cayman Islands - Grand Cayman",
  "unit": null,
  "bbox": [
    19.21,
    -81.46,
    19.41,
    -81.04
  ],
  "proj4": "+proj=longlat +ellps=GRS80 +vunits=ft +no_defs +type=crs"
}

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (9503, 'EPSG', 9503, '+proj=longlat +ellps=GRS80 +vunits=ft +no_defs +type=crs', 'COMPD_CS["CIGD11 + GCVD54 height (ft)",GEOGCS["CIGD11",DATUM["Cayman_Islands_Geodetic_Datum_2011",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1100"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","6135"]],VERT_CS["GCVD54 height (ft)",VERT_DATUM["Grand Cayman Vertical Datum 1954",2005,AUTHORITY["EPSG","1097"]],UNIT["foot",0.3048,AUTHORITY["EPSG","9002"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6130"]],AUTHORITY["EPSG","9503"]]');

PROJECTION
  "+proj=longlat"
  "+ellps=GRS80"
  "+vunits=ft"
  "+no_defs"
  "+type=crs"
END

9503=COMPD_CS["CIGD11 + GCVD54 height (ft)",GEOGCS["CIGD11",DATUM["Cayman_Islands_Geodetic_Datum_2011",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1100"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","6135"]],VERT_CS["GCVD54 height (ft)",VERT_DATUM["Grand Cayman Vertical Datum 1954",2005,AUTHORITY["EPSG","1097"]],UNIT["foot",0.3048,AUTHORITY["EPSG","9002"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","6130"]],AUTHORITY["EPSG","9503"]]