ETRF 1989 UTM Zone 31N (DEPRECATED) - ESRI:103531

WKT

PROJCS["ETRF_1989_UTM_Zone_31N", 
	GEOGCS["GCS_ETRF_1989", 
		DATUM["D_ETRF_1989", 
			SPHEROID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	PROJECTION["Transverse_Mercator"], 
	PARAMETER["False_Easting", 500000.0], 
	PARAMETER["False_Northing", 0.0], 
	PARAMETER["Central_Meridian", 3.0], 
	PARAMETER["Scale_Factor", 0.9996], 
	PARAMETER["Latitude_Of_Origin", 0.0], 
	UNIT["Meter", 1.0]]

WKT2

PROJCRS["ETRF_1989_UTM_Zone_31N", 
	BASEGEOGCRS["GCS_ETRF_1989", 
		DYNAMIC[
			FRAMEEPOCH[1989.0], 
			MODEL["AM0-2"]], 
		DATUM["D_ETRF_1989", 
			ELLIPSOID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		CS[ellipsoidal, 2], 
		AXIS["Latitude (lat)", north, 
			ORDER[1]], 
		AXIS["Longitude (lon)", east, 
			ORDER[2]], 
		ANGLEUNIT["Degree", 0.0174532925199433]], 
	CONVERSION["Transverse_Mercator", 
		METHOD["Transverse_Mercator"], 
		PARAMETER["False_Easting", 500000.0], 
		PARAMETER["False_Northing", 0.0], 
		PARAMETER["Central_Meridian", 3.0], 
		PARAMETER["Scale_Factor", 0.9996], 
		PARAMETER["Latitude_Of_Origin", 0.0]], 
	CS[Cartesian, 2], 
	AXIS["Easting (X)", east, 
		ORDER[1]], 
	AXIS["Northing (Y)", north, 
		ORDER[2]], 
	LENGTHUNIT["Meter", 1.0], 
	ID["Esri", "103531"]]

Data from @esri/proj-codes

{
  "wkid": 103531,
  "latestWkid": 103531,
  "gcsWkid": 9059,
  "macro": "PE_PCS_ETRF_1989_UTM_31N",
  "name": "ETRF_1989_UTM_Zone_31N",
  "wkt": "PROJCS[\"ETRF_1989_UTM_Zone_31N\",GEOGCS[\"GCS_ETRF_1989\",DATUM[\"D_ETRF_1989\",SPHEROID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",500000.0],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",3.0],PARAMETER[\"Scale_Factor\",0.9996],PARAMETER[\"Latitude_Of_Origin\",0.0],UNIT[\"Meter\",1.0]]",
  "wkt2": "PROJCRS[\"ETRF_1989_UTM_Zone_31N\",BASEGEOGCRS[\"GCS_ETRF_1989\",DYNAMIC[FRAMEEPOCH[1989.0],MODEL[\"AM0-2\"]],DATUM[\"D_ETRF_1989\",ELLIPSOID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433]],CONVERSION[\"Transverse_Mercator\",METHOD[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",500000.0],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",3.0],PARAMETER[\"Scale_Factor\",0.9996],PARAMETER[\"Latitude_Of_Origin\",0.0]],CS[Cartesian,2],AXIS[\"Easting (X)\",east,ORDER[1]],AXIS[\"Northing (Y)\",north,ORDER[2]],LENGTHUNIT[\"Meter\",1.0],ID[\"Esri\",\"103531\"]]",
  "description": "ETRF 1989 UTM Zone 31N (DEPRECATED)",
  "authority": "Esri",
  "version": "9.0.0",
  "deprecated": "yes",
  "areaname": "Europe - 0~E to 6~E and ETRS89 by country",
  "extent": {
    "slat": 37,
    "nlat": 82.45,
    "llon": 0,
    "rlon": 6.01
  }
}