# Data Dictionary - Crypto BTC-Beta & Correlation (Hyperliquid universe) - rolling 90-day, daily Parquet

**Units:** vary by `metric` - read the per-row `unit` column (overall: beta / correlation).  Times are UTC.

| column | type | description |
|---|---|---|
| `zone` | str | Coin |
| `ts` | timestamp (UTC) | Day |
| `metric` | str | beta_btc_90d / corr_btc_90d |
| `value` | float | Beta (ratio) or correlation [-1,1] |
| `unit` | str | unit |
| `res_min` | int | Native resolution (daily = 1440) |

*Source: Hyperliquid (on-chain perpetual DEX) - public asset-context data.*