EPSG:8266 — GVR2000 height

VERTCRS[
    "GVR2000 height",
    VDATUM["Greenland Vertical Reference 2000",ID["EPSG",1199]],
    CS[vertical,1,ID["EPSG",6499]],
    AXIS["Gravity-related height (H)",up],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    GEOIDMODEL["GR96 to GVR2000 height (1)",ID["EPSG",8268]],
    ID["EPSG",8266]
]

+vunits=m +no_defs +type=crs

proj4.defs("EPSG:8266", "+vunits=m +no_defs +type=crs");

{
  "type": "CoordinateReferenceSystem",
  "code": 8266,
  "name": "GVR2000 height",
  "kind": "vertical",
  "area": "Greenland - 59°N to 84°N",
  "unit": "metre",
  "bbox": [
    59,
    -75,
    84.01,
    -10
  ],
  "proj4": "+vunits=m +no_defs +type=crs"
}

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (8266, 'EPSG', 8266, '+vunits=m +no_defs +type=crs', 'VERT_CS["GVR2000 height",VERT_DATUM["Greenland Vertical Reference 2000",2005,AUTHORITY["EPSG","1199"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","8266"]]');

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

8266=VERT_CS["GVR2000 height",VERT_DATUM["Greenland Vertical Reference 2000",2005,AUTHORITY["EPSG","1199"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","8266"]]