{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"VerticalReferenceFrame","name":"Wiener Null","scope":"Municipal spatial referencing.","area":"Austria - Vienna city state.","bbox":{"south_latitude":48.12,"west_longitude":16.18,"north_latitude":48.34,"east_longitude":16.59},"id":{"authority":"EPSG","code":1267}}