EPSG:5772 — Stewart Island 1977 height

VERTCRS[
    "Stewart Island 1977 height",
    VDATUM["Stewart Island 1977",ID["EPSG",5170]],
    CS[vertical,1,ID["EPSG",6499]],
    AXIS["Gravity-related height (H)",up],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",5772]
]

+vunits=m +no_defs +type=crs

proj4.defs("EPSG:5772", "+vunits=m +no_defs +type=crs");

{
  "type": "CoordinateReferenceSystem",
  "code": 5772,
  "name": "Stewart Island 1977 height",
  "kind": "vertical",
  "area": "New Zealand - Stewart Island",
  "unit": "metre",
  "bbox": [
    -47.33,
    167.29,
    -46.63,
    168.34
  ],
  "proj4": "+vunits=m +no_defs +type=crs"
}

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (5772, 'EPSG', 5772, '+vunits=m +no_defs +type=crs', 'VERT_CS["Stewart Island 1977 height",VERT_DATUM["Stewart Island 1977",2005,AUTHORITY["EPSG","5170"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5772"]]');

PROJECTION
  "+vunits=m"
  "+no_defs"
  "+type=crs"
END

5772=VERT_CS["Stewart Island 1977 height",VERT_DATUM["Stewart Island 1977",2005,AUTHORITY["EPSG","5170"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5772"]]