{
  "asset_id": "PUMP-101",
  "signal_id": "DE_BEARING_TEMP_PREDICTED",
  "correlation_id": "9f2c1b74-0e35-4a8d-9c21-7b6e0a4d5f13",
  "source_timestamp": 1752960000.0,
  "inference_timestamp": 1752960002.4,
  "input_quality": "good",
  "output_quality": "good",
  "value": 78.4,
  "value_kind": "predicted",
  "model_name": "pump101_bearing_thermal_soft_sensor",
  "model_version": "2.3.1",
  "feature_pipeline_version": "fp-2026.05",
  "calibration_version": "cal-2026-06-18",
  "valid_until": 1752960302.0,
  "sync_state": "synchronized",
  "service_health": "healthy",
  "fallback_state": "installed RTD remains the operator's temperature source",
  "requested_authority": 2,
  "action_type": "advisory_maintenance_notification",
  "uncertainty": 3.1,
  "prediction_horizon_s": 1800.0,
  "audit_identity": "twin-service/pump101"
}