---
license: cc0-1.0
language:
  - en
tags:
  - hyperliquid
  - blockchain
  - rev
  - chain-data
size_categories:
  - 10B<n<100B
---

# Hyperliquid Chain Captures

Date-partitioned captures of HyperLiquid chain state for research use. Each date partition contains both **raw** node outputs (replica command logs, hourly event dumps, L2 book snapshots) and **processed** Parquet files derived from those raw captures.

The dataset is forward-compatible for additional dates: each date lives under its own top-level directory.

## Layout

```
<date>/                                 # e.g., 2026-03-01/
├── raw/                                # native node outputs, lz4-compressed where applicable
│   ├── replica_cmds/
│   │   └── <capture_timestamp>/
│   │       └── <date>/
│   │           └── <block_number>      # ~2-7 GB per file, block-range chunks
│   ├── asset_ctxs/
│   │   └── <date>.csv.lz4
│   ├── misc_events_by_block/
│   │   └── hourly/<date>/<hour>        # per-hour event bundle
│   └── market_data/
│       └── <date>/<window>/l2Book/<symbol>   # L2 book per symbol per window
└── processed/                          # derived Parquet (zstd-compressed)
    ├── replica_cmds/part-0000.zstd.parquet
    ├── asset_ctxs/part-0000.zstd.parquet
    ├── misc_events_by_block/part-{0000..N}.zstd.parquet
    └── market_data/part-0000.zstd.parquet
```

Each `processed/` directory also contains a `_manifest.json` documenting the row count, schema fingerprint, and source raw files for the Parquet output.

## Loading the processed data

```python
import pandas as pd

# Replica commands for a given date
df = pd.read_parquet(
    "https://huggingface.co/datasets/xylemgroup/hyperliquid-chain-captures/resolve/main/2026-03-01/processed/replica_cmds/part-0000.zstd.parquet"
)
```

Or via `datasets`:

```python
from datasets import load_dataset
ds = load_dataset(
    "xylemgroup/hyperliquid-chain-captures",
    data_files="2026-03-01/processed/replica_cmds/part-0000.zstd.parquet",
)
```

## Available dates

| Date       | Raw size  | Processed size | Block ranges covered (replica_cmds)                   |
|------------|-----------|----------------|-------------------------------------------------------|
| 2026-03-01 | ~29.1 GB  | ~4.6 GB        | 909,310,000–909,330,000 and 909,615,000–909,630,000  |

## Source

HyperLiquid chain replica state, captured via the official replica command logs. The raw `replica_cmds` files are the unmodified node-side output for the indicated block ranges. The `processed` Parquet files are deterministic derivations of the raw inputs — schemas and source-file lineage are recorded per-dataset in the corresponding `_manifest.json`.

## License

Released under **CC0 1.0** (public domain dedication). The underlying chain data is public; this dataset is the captured form of it. No attribution required.