{
  "summary": {
    "date": "2025-09-23",
    "path": "/Users/lutherbot/.openclaw/workspace/data/cbbo_spread_cache/spread_cache_2025-09-23.parquet",
    "seconds": 23397,
    "expected_seconds": 23397,
    "completeness_ok": true,
    "full_session_coverage_ok": true,
    "first_ts": 1758634203,
    "last_ts": 1758657599,
    "used_in_cbbo_study": true,
    "source_type": "extra_raw_cache",
    "both_spikes_raw": 21,
    "both_clusters": 4
  },
  "clusters": [
    {
      "date": "2025-09-23",
      "cluster_id": 1,
      "ts": 1758635100,
      "time_et": "09:45:00",
      "time_pt": "06:45:00",
      "cluster_size": 10,
      "density_2p_30s": 1,
      "density_3p_30s": 1,
      "density_4p_60s": 1,
      "max_ratio": 3.75,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 3.428571428571428,
      "wide_secs_60": 10,
      "persist_10": 10,
      "persist_20": 10,
      "persist_30": 10,
      "persist_60": 10
    },
    {
      "date": "2025-09-23",
      "cluster_id": 2,
      "ts": 1758645303,
      "time_et": "12:35:03",
      "time_pt": "09:35:03",
      "cluster_size": 7,
      "density_2p_30s": 1,
      "density_3p_30s": 1,
      "density_4p_60s": 1,
      "max_ratio": 16.4,
      "p_ratio_t0": 11.0,
      "c_ratio_t0": 3.25,
      "wide_secs_60": 12,
      "persist_10": 7,
      "persist_20": 11,
      "persist_30": 12,
      "persist_60": 12
    },
    {
      "date": "2025-09-23",
      "cluster_id": 3,
      "ts": 1758648252,
      "time_et": "13:24:12",
      "time_pt": "10:24:12",
      "cluster_size": 1,
      "density_2p_30s": 0,
      "density_3p_30s": 0,
      "density_4p_60s": 0,
      "max_ratio": 2.0,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.0,
      "wide_secs_60": 1,
      "persist_10": 1,
      "persist_20": 1,
      "persist_30": 1,
      "persist_60": 1
    },
    {
      "date": "2025-09-23",
      "cluster_id": 4,
      "ts": 1758657236,
      "time_et": "15:53:56",
      "time_pt": "12:53:56",
      "cluster_size": 3,
      "density_2p_30s": 1,
      "density_3p_30s": 1,
      "density_4p_60s": 0,
      "max_ratio": 6.533333333333334,
      "p_ratio_t0": 2.8000000000000003,
      "c_ratio_t0": 2.0,
      "wide_secs_60": 3,
      "persist_10": 2,
      "persist_20": 2,
      "persist_30": 2,
      "persist_60": 3
    }
  ]
}