EPSG:1456

COORDINATEOPERATION["St. Paul Island to NAD83 (1)",
    VERSION["NGS-Usa AK StP"],
    SOURCECRS[
        GEOGCRS["St. Paul Island",
            DATUM["St. Paul Island",
                ELLIPSOID["Clarke 1866",6378206.4,294.978698213898,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            CS[ellipsoidal,2],
                AXIS["geodetic latitude (Lat)",north,
                    ORDER[1],
                    ANGLEUNIT["degree",0.0174532925199433]],
                AXIS["geodetic longitude (Lon)",east,
                    ORDER[2],
                    ANGLEUNIT["degree",0.0174532925199433]],
            ID["EPSG",4137]]],
    TARGETCRS[
        GEOGCRS["NAD83",
            DATUM["North American Datum 1983",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            CS[ellipsoidal,2],
                AXIS["geodetic latitude (Lat)",north,
                    ORDER[1],
                    ANGLEUNIT["degree",0.0174532925199433]],
                AXIS["geodetic longitude (Lon)",east,
                    ORDER[2],
                    ANGLEUNIT["degree",0.0174532925199433]],
            ID["EPSG",4269]]],
    METHOD["NADCON",
        ID["EPSG",9613]],
    PARAMETERFILE["Latitude difference file","stpaul.las"],
    PARAMETERFILE["Longitude difference file","stpaul.los"],
    OPERATIONACCURACY[0.5],
    USAGE[
        SCOPE["Transformation of coordinates at 0.5m level of accuracy."],
        AREA["United States (USA) - Alaska - Pribilof Islands - St Paul Island."],
        BBOX[57.06,-170.51,57.28,-170.04]],
    ID["EPSG",1456],
    REMARK["Accuracy 0.5m at 67% confidence level. Uses NADCON method which expects longitudes positive west; source and target CRSs have longitudes positive east. NADCON converts from St. Paul Datum but makes the transformation appear to be from NAD27."]]

proj4.defs("EPSG:1456","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=us_noaa_stpaul.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1");

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Transformation",
    "name": "St. Paul Island to NAD83 (1)",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "St. Paul Island",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "St. Paul Island",
            "ellipsoid": {
                "name": "Clarke 1866",
                "semi_major_axis": 6378206.4,
                "semi_minor_axis": 6356583.8
            }
        },
        "coordinate_system": {
            "subtype": "ellipsoidal",
            "axis": [
                {
                    "name": "Geodetic latitude",
                    "abbreviation": "Lat",
                    "direction": "north",
                    "unit": "degree"
                },
                {
                    "name": "Geodetic longitude",
                    "abbreviation": "Lon",
                    "direction": "east",
                    "unit": "degree"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 4137
        },
        "remarks": "Note: this CRS includes longitudes which are POSITIVE EAST."
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "NAD83",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "North American Datum 1983",
            "ellipsoid": {
                "name": "GRS 1980",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257222101
            }
        },
        "coordinate_system": {
            "subtype": "ellipsoidal",
            "axis": [
                {
                    "name": "Geodetic latitude",
                    "abbreviation": "Lat",
                    "direction": "north",
                    "unit": "degree"
                },
                {
                    "name": "Geodetic longitude",
                    "abbreviation": "Lon",
                    "direction": "east",
                    "unit": "degree"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 4269
        },
        "remarks": "Longitude is POSITIVE EAST. The adjustment included connections to Greenland and Mexico but the system was not adopted there. For applications with an accuracy of better than 1m replaced by NAD83(HARN) in the US and PRVI and by NAD83(CSRS) in Canada."
    },
    "method": {
        "name": "NADCON",
        "id": {
            "authority": "EPSG",
            "code": 9613
        }
    },
    "parameters": [
        {
            "name": "Latitude difference file",
            "value": "stpaul.las",
            "id": {
                "authority": "EPSG",
                "code": 8657
            }
        },
        {
            "name": "Longitude difference file",
            "value": "stpaul.los",
            "id": {
                "authority": "EPSG",
                "code": 8658
            }
        }
    ],
    "accuracy": "0.5",
    "scope": "Transformation of coordinates at 0.5m level of accuracy.",
    "area": "United States (USA) - Alaska - Pribilof Islands - St Paul Island.",
    "bbox": {
        "south_latitude": 57.06,
        "west_longitude": -170.51,
        "north_latitude": 57.28,
        "east_longitude": -170.04
    },
    "id": {
        "authority": "EPSG",
        "code": 1456
    },
    "remarks": "Accuracy 0.5m at 67% confidence level. Uses NADCON method which expects longitudes positive west; source and target CRSs have longitudes positive east. NADCON converts from St. Paul Datum but makes the transformation appear to be from NAD27."
}

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=us_noaa_stpaul.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1">
	<Layer srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=us_noaa_stpaul.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1">
	</Layer>
</Map>

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 1456, 'EPSG', 1456, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=us_noaa_stpaul.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');