Urban Digital Twin Interoperability Pilot Report http://www.opengis.net/doc/PER/UDTIP24-067r124-067r12025-07-102025-03-062025-04-23 Soheil Sabri Sina Taghavikish Open Geospatial Consortium OGCendraft2025 Open Geospatial Consortium OGCUrban Digital TwinInteroperabilityOGC StandardsCityGMLGeoPoseTrainDMLOGC APIsNoise ModelingGeo-AI3D VisualizationUrban Analyticsengineering-reportogctechnical