Japanese Standard Levelling Datum 1969 - EPSG:5723

WKT

VERTCS["Japanese_Standard_Levelling_Datum_1969", 
	VDATUM["Japanese_Standard_Levelling_Datum_1969"], 
	PARAMETER["Vertical_Shift", 0.0], 
	PARAMETER["Direction", 1.0], 
	UNIT["Meter", 1.0]]

WKT2

VERTCRS["Japanese_Standard_Levelling_Datum_1969", 
	VDATUM["Japanese_Standard_Levelling_Datum_1969"], 
	CS[vertical, 1], 
	AXIS["Gravity-related height (H)", up, 
		LENGTHUNIT["Meter", 1.0]], 
	ID["EPSG", "5723"]]

Data from @esri/proj-codes

{
  "wkid": 5723,
  "latestWkid": 5723,
  "macro": "PE_VCS_JAPAN_STD_LEVEL_DATUM_1969",
  "name": "Japanese_Standard_Levelling_Datum_1969",
  "wkt": "VERTCS[\"Japanese_Standard_Levelling_Datum_1969\",VDATUM[\"Japanese_Standard_Levelling_Datum_1969\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]",
  "wkt2": "VERTCRS[\"Japanese_Standard_Levelling_Datum_1969\",VDATUM[\"Japanese_Standard_Levelling_Datum_1969\"],CS[vertical,1],AXIS[\"Gravity-related height (H)\",up,LENGTHUNIT[\"Meter\",1.0]],ID[\"EPSG\",\"5723\"]]",
  "description": "Japanese Standard Levelling Datum 1969",
  "authority": "EPSG",
  "version": "6.2(9.3.0.0)",
  "deprecated": "no",
  "areaname": "Japan - onshore mainland",
  "extent": {
    "slat": 30.94,
    "nlat": 45.54,
    "llon": 129.3,
    "rlon": 145.87
  }
}