{"source":"https://api.gridrock.ai/mcp","tool":"read_witnesses","tier":"tier_u_v1","scope":"mh36","archetype":"warming","cell":{"admin_code":470,"cluster_id":4700007433},"witness":{"present":true,"_store":"standalone_pin","kind":"trajectory","_pin":{"pin_seq":0,"pin_sha256":"fd412a84302331e8ab9ecee85c26003f1b2164fd48494b40fd473a1e628a8a39","pin_publish_utc":"2026-10-12T09:03:25+00:00","source_window_end_utc":"2025-12-31T00:00:00+00:00"},"witnesses":{"tier_u_v1_temp_annual_mean_c":26.45445372813564,"tier_u_v1_temp_trend_c_per_decade":0.19681060743899148,"tier_u_v1_summer_max_mean_c":37.032957972896654,"tier_u_v1_winter_min_mean_c":14.439524423021618,"tier_u_v1_temp_interannual_sd_c":0.5739685408941149,"tier_u_v1_temp_annual_mean_idw_sd_c":0.9401475860588351,"tier_u_v1_temp_trend_idw_sd_c_per_decade":0.08081449382015621,"tier_u_v1_n_stations_idw":6,"tier_u_v1_nearest_station_km":100.158,"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}}}