---
license: cc0-1.0
doi: 10.5281/zenodo.23076180
pretty_name: "LEI Test Data"
tags:
  - test-data
  - synthetic
  - lei
configs:
  - config_name: default
    data_files:
      - split: train
        path: "lei-small.csv"
---

# LEI Test Data

Twenty-character LEIs with a correctly computed ISO 7064 MOD-97-10 check-digit pair. Synthetic entities; not registered organisations.

Free to use under **CC0-1.0** — public domain dedication, no attribution required.

## Files

- `lei-small.json` / `lei-small.csv` — 100 rows (documents: 25)
- `lei-medium.json` / `lei-medium.csv` — 2,000 rows (documents: 250)
- `lei-large.json` / `lei-large.csv` — 20,000 rows (documents: 2,500)

Deterministic: the same size always produces the same rows.

## Source

Generated by StanzaAPI from <https://stanzaapi.com/datasets/lei>.

## Citation

```
StanzaAPI. (2026). LEI Test Data. CC0-1.0.
DOI: 10.5281/zenodo.23076180
https://stanzaapi.com/datasets/lei
```

## Security: adversarial corpus

This dataset ships a catalogued **adversarial corpus** of 12 hostile inputs
(injection, XXE, resource exhaustion, encoding attacks, validation bypass, structural confusion,
and prompt injection for AI agents) with the safe expected behaviour. See
[`adversarial/`](adversarial/) or the [hub](https://stanzaapi.com/datasets/adversarial).