# Licensing

The replay packs of this dataset are dual-licensed.

## Research and non-profit use — CC BY-NC-SA 4.0

The packs, their manifest and their certificates are available under the
[Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-nc-sa/4.0/).
You may download, replay, redistribute and build upon them for research, teaching and any other non-commercial
purpose, as long as you credit this dataset and its source geometry (the `citation` field of every pack) and
release what you build upon them under the same terms.

## Commercial use

A commercial licence is available under separately negotiated terms for use that makes money: inside a product,
a paid service, contract research, or the training of a model that is sold. It lifts the non-commercial and
share-alike obligations.

📧 **rutger.fick@dmrai-lab.org**

## What the licence covers, and what it does not

The licence covers the simulated records in the packs: the walkers' paths, occupancies, wall contacts and field
samples, their coefficients, and the certificates. The **source geometry** each pack was simulated on keeps its
own licence, recorded in the pack's `license` field and in the manifest, and this dataset never relicenses it.
The replay-pack **format** is a separate, openly licensed specification (CC-BY-4.0 text, Apache-2.0 reference code):
anyone may produce and read packs under their own terms.

Copies of a pack obtained under an earlier licence of this dataset keep that licence; these terms apply from the
revision that carries this file.