{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"VerticalReferenceFrame","name":"Deutsches Haupthoehennetz 1912","scope":"Geodesy, engineering survey, topographic mapping.","area":"Germany - onshore - states of Baden-Wurtemberg, Bayern, Berlin, Brandenburg, Bremen, Hamburg, Hessen, Mecklenburg-Vorpommern, Niedersachsen, Nordrhein-Westfalen, Rheinland-Pfalz, Saarland, Sachsen, Sachsen-Anhalt, Schleswig-Holstein, Thuringen.","bbox":{"south_latitude":47.27,"west_longitude":5.86,"north_latitude":55.09,"east_longitude":15.04},"id":{"authority":"EPSG","code":1161}}