docs/data_structure.md

# MANUS-DexYCB Release Structure

This release is organized as one Hugging Face dataset repository for the DexYCB-derived MANUS subset.

```text
MANUS-DexYCB
|-- README.md
|-- LICENSE
|-- data
|   `-- dexycb
|       `-- test/*.tar
|-- metadata
|   |-- dexycb_manifest.parquet
|   |-- dexycb_manifest.csv
|   |-- dexycb_manifest.jsonl
|   |-- source_licenses.csv
|   |-- release_schema.json
|   |-- release_report.json
|   `-- checksums.sha256
|-- docs
|   |-- data_structure.md
|   |-- annotation_format.md
|   |-- loading_examples.md
|   `-- processing_pipeline.md
`-- scripts
    |-- audit_sources.py
    `-- verify_checksums.py
```

## WebDataset Naming

Tar shards are stored under `data/dexycb/test/` and named `dexycb-test-000000.tar`, `dexycb-test-000001.tar`, and so on.

Within each tar, files belonging to the same sample share a common prefix such as `dexycb_test_000001_processed_000001`.

## Public Metadata

Public manifests do not contain local absolute source paths. They record portable sample metadata, available modalities, source dataset/license fields, and the relative shard path.