DGN 1995 - ESRI:115710

WKT

VERTCS["DGN_1995", 
	DATUM["D_Datum_Geodesi_Nasional_1995", 
		SPHEROID["WGS_1984", 6378137.0, 298.257223563]], 
	PARAMETER["Vertical_Shift", 0.0], 
	PARAMETER["Direction", 1.0], 
	UNIT["Meter", 1.0]]

WKT2

VERTCRS["DGN_1995", 
	DATUM["D_Datum_Geodesi_Nasional_1995", 
		ELLIPSOID["WGS_1984", 6378137.0, 298.257223563]], 
	CS[vertical, 1], 
	AXIS["Ellipsoidal height (h)", up, 
		LENGTHUNIT["Meter", 1.0]], 
	ID["Esri", "115710"]]

Data from @esri/proj-codes

{
  "wkid": 115710,
  "latestWkid": 115710,
  "macro": "PE_VCS_DGN_1995",
  "name": "DGN_1995",
  "wkt": "VERTCS[\"DGN_1995\",DATUM[\"D_Datum_Geodesi_Nasional_1995\",SPHEROID[\"WGS_1984\",6378137.0,298.257223563]],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]",
  "wkt2": "VERTCRS[\"DGN_1995\",DATUM[\"D_Datum_Geodesi_Nasional_1995\",ELLIPSOID[\"WGS_1984\",6378137.0,298.257223563]],CS[vertical,1],AXIS[\"Ellipsoidal height (h)\",up,LENGTHUNIT[\"Meter\",1.0]],ID[\"Esri\",\"115710\"]]",
  "description": "DGN 1995",
  "authority": "Esri",
  "version": "10.4.0",
  "deprecated": "no",
  "areaname": "Indonesia",
  "extent": {
    "slat": -13.95,
    "nlat": 7.79,
    "llon": 92.01,
    "rlon": 141.46
  }
}