# Credits and license

Authors: Sitian Qian (<sitian.qian@cern.ch>),
[Chirayu Gupta (@Chirayu18)](https://github.com/Chirayu18), and
[Alexandre De Moor (@AlexDeMoor)](https://github.com/AlexDeMoor).
AI co-authors: OpenAI Codex and Anthropic Claude.

FlashJet is distributed under GPL-3.0-or-later: GNU GPL version 3 or, at your
option, any later version. The full GPL v3 text is included in the source and
wheel. The original snapshot declared GPL-2.0-or-later; this release elects
version 3 or later. FastJet's upstream license remains GPL-2.0-or-later, and
its attribution is retained.
Its clustering algorithm derives from [FastJet](https://fastjet.fr).
Please cite the FastJet papers listed on that project's site when using these
algorithms in a physics publication.

This publication starts from FlastJetDemo commit
`81f3693c7c2a80ac8e9780b0f03583774798ed6b`, including the local guide edits present
at snapshot time. `snapshot-source.json` records hashes of the copied input
files. It describes the source snapshot, before publication edits.