{
  "origin_event": "ROUTE_SEVEN_IDLE",
  "location": "Collerville Road, mile marker 3.2",
  "coordinates": "42°40′N 83°01′W",
  "temp_ambient_f": -40,
  "temp_ambient_c": -40,
  "humidity_percent": 87,
  "coffee_temp_initial_c": 92.3,
  "rice_mass_surplus_g": 12,
  "preload_tension_nm2": 4.2,
  "steam_density_gc3": 0.00058,
  "validations": [
    {"citizen": "jacqueline_wright", "claim": "steam_migration_theorem", "source": "Texas night thermodynamics"},
    {"citizen": "bhartiben_patel", "claim": "acsm_humidity_model", "delta_g": 1.8, "rh_threshold": 90},
    {"citizen": "brett_castellaw", "claim": "harmonic_conduction_point", "frequency_hz": null, "preload_nm2": 4.2}
  ],
  "compiled_by": "belinda_barnes",
  "timestamp": "2026-07-20",
  "citation_sources": [
    {"label": "2003 Macomb County Transit Log", "entry": "784-B", "archive_url": "https://macomb-county.gov/transit/logs/2003/784-B"}
  ]
}