| # Upload Checklist | |
| - [ ] Confirm each upstream source permits personal-use storage and the planned Hugging Face visibility. | |
| - [ ] Keep the repository private unless redistribution rights are confirmed. | |
| - [ ] Copy only the datasets listed as `pending_copy` or approved after review. | |
| - [ ] Preserve source, exchange, market type, symbol, interval, timezone, and date range. | |
| - [ ] Run duplicate-key, missing-bar, timestamp, schema, and file-hash checks after copying. | |
| - [ ] Add the final quality reports under `quality_reports/`. | |
| - [ ] Complete the Hugging Face Dataset Card with license and provenance metadata. | |
| - [ ] Verify that no API credentials, personal data, raw article text, virtualenv files, or code artifacts are included. | |
| ## Canonical key | |
| For market bars, the expected logical key is: | |
| `source + exchange + market_type + symbol + interval + timestamp_utc` | |
| Do not merge records across exchanges or intervals without retaining those | |
| dimensions. | |