{"source":"https://api.gridrock.ai/mcp","tool":"read_witnesses","tier":"tier_u_v1","scope":"mh36","archetype":"warming","cell":{"admin_code":485,"cluster_id":4850002149},"witness":{"present":true,"_store":"standalone_pin","kind":"trajectory","_pin":{"pin_seq":0,"pin_sha256":"fd412a84302331e8ab9ecee85c26003f1b2164fd48494b40fd473a1e628a8a39","pin_publish_utc":"2026-07-13T09:03:06+00:00","source_window_end_utc":"2025-12-31T00:00:00+00:00"},"witnesses":{"tier_u_v1_temp_annual_mean_c":27.245113026331563,"tier_u_v1_temp_trend_c_per_decade":0.10165677019250877,"tier_u_v1_summer_max_mean_c":38.18883186118815,"tier_u_v1_winter_min_mean_c":15.669642579288436,"tier_u_v1_temp_interannual_sd_c":0.5221199560975949,"tier_u_v1_temp_annual_mean_idw_sd_c":0.6014423831857384,"tier_u_v1_temp_trend_idw_sd_c_per_decade":0.14976131377767907,"tier_u_v1_n_stations_idw":6,"tier_u_v1_nearest_station_km":165.5419,"tier_u_v1_any_station_warming_sig":true,"tier_u_v1_source_window_end_utc":"2025-12-31T00:00:00+00:00","tier_u_v1_source_natural_cadence_seconds":31536000,"tier_u_v1_overdue_factor_at_publish":0,"floor_tier_u_v1_overdue_vs_natural_cadence_by_factor_N":false}}}