{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeodeticReferenceFrame","name":"Not specified (based on International 1924 Authalic Sphere)","ellipsoid":{"name":"International 1924 Authalic Sphere","radius":6371228},"scope":"Not a valid datum.","area":"Not specified.","bbox":{"south_latitude":-90,"west_longitude":-180,"north_latitude":90,"east_longitude":180},"id":{"authority":"EPSG","code":6053}}