{
  "chain": "arbitrum",
  "date": "2026-03-25",
  "updated_through": "2026-03-25",
  "methodology_version": "v1.2",
  "status": {
    "label": "HEATING",
    "one_liner": "Activity is firming relative to recent chain norms but not yet congested."
  },
  "publish_confidence": {
    "threshold": 0.4
  },
  "confidence": {
    "confidence_score": 0.732,
    "lag_days_vs_utc_today": 0,
    "data_quality_score": 0.81,
    "label_confidence_score": 0.66
  },
  "regime": {
    "label": "HEATING",
    "asof_date": "2026-03-25",
    "ruleset_id": "arb_v1",
    "window_days": 180,
    "determinism_hash": "da96a075f205",
    "drivers": [
      {
        "axis": "demand",
        "metric": "tx_count_daily",
        "trend": "high",
        "z_robust": 1.36,
        "pct_90d": 0.83,
        "momentum_7d_vs_30d": 0.17,
        "current": 1182403
      },
      {
        "axis": "friction",
        "metric": "median_tx_fee_native",
        "trend": "stable",
        "z_robust": 0.74,
        "pct_90d": 0.62,
        "momentum_7d_vs_30d": 0.05,
        "current": 0.00021
      }
    ]
  }
}