EPSG:4225

BOUNDCRS[
    SOURCECRS[
        GEOGCRS["Corrego Alegre 1970-72",
            DATUM["Corrego Alegre 1970-72",
                ELLIPSOID["International 1924",6378388,297,
                    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]],
            USAGE[
                SCOPE["Geodesy."],
                AREA["Brazil - onshore - west of 54°W and south of 18°S; also south of 15°S between 54°W and 42°W; also east of 42°W."],
                BBOX[-33.78,-58.16,-2.68,-34.74]],
            ID["EPSG",4225]]],
    TARGETCRS[
        GEOGCRS["SIRGAS 2000",
            DATUM["Sistema de Referencia Geocentrico para las AmericaS 2000",
                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]],
            USAGE[
                SCOPE["Horizontal component of 3D system."],
                AREA["Latin America - Central America and South America - onshore and offshore. Brazil - onshore and offshore."],
                BBOX[-59.87,-122.19,32.72,-25.28]],
            ID["EPSG",4674]]],
    ABRIDGEDTRANSFORMATION["Corrego Alegre 1970-72 to SIRGAS 2000 (1)",
        METHOD["NTv2",
            ID["EPSG",9615]],
        PARAMETERFILE["Latitude and longitude difference file","CA7072_003.gsb"],
        USAGE[
            SCOPE["Transformation of coordinates at 2m level of accuracy."],
            AREA["Brazil - onshore - west of 54°W and south of 18°S; also south of 15°S between 54°W and 42°W; also east of 42°W."],
            BBOX[-33.78,-58.16,-2.68,-34.74]],
        ID["EPSG",5526],
        REMARK["May be used as transformation between Corrego Alegre 1970-72 and WGS 84 - see tfm code 5541."]]]

proj4.defs("EPSG:4225","+proj=longlat +ellps=intl +no_defs +type=crs");

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "Corrego Alegre 1970-72",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Corrego Alegre 1970-72",
            "ellipsoid": {
                "name": "International 1924",
                "semi_major_axis": 6378388,
                "inverse_flattening": 297
            }
        },
        "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": 4225
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "SIRGAS 2000",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Sistema de Referencia Geocentrico para las AmericaS 2000",
            "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": 4674
        }
    },
    "transformation": {
        "name": "Corrego Alegre 1970-72 to SIRGAS 2000 (1)",
        "method": {
            "name": "NTv2",
            "id": {
                "authority": "EPSG",
                "code": 9615
            }
        },
        "parameters": [
            {
                "name": "Latitude and longitude difference file",
                "value": "CA7072_003.gsb",
                "id": {
                    "authority": "EPSG",
                    "code": 8656
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 5526
        }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=intl +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=intl +no_defs +type=crs">
	</Layer>
</Map>