# Per-artifact rights

Authored challenge runner, control scoring, interface and independently written
Johansson simulation/PI/MPC code: MIT, Copyright 2026 Sankalp Thakur.

The separately bundled `plume/` grading component is GPL-3.0. Its license text is
included at `plume/LICENSE`. The source-derived STARCOP/HyperSTARCOP development
statistics and its public tile metadata retain CC BY-NC 4.0 attribution to the
original authors: https://doi.org/10.5281/zenodo.7863343 and
https://www.nature.com/articles/s41598-023-44918-6 . Commercial data rights are not
granted by the authored-code license. Released checkpoint test-loss monitoring,
annotation incorporation bias and consumed public labels remain disclosed.

3W-derived development audit statistics retain CC BY 4.0 attribution to Petrobras
3W contributors, pinned source revision 6a13bd21a02a2ce6ce23a02b1c2ba2f73770752b:
https://github.com/petrobras/3W/tree/6a13bd21a02a2ce6ce23a02b1c2ba2f73770752b .
No raw source sensor recordings or pretrained/learned weights are in this release.

Johansson's paper is cited as the equation-level foundation, DOI 10.1109/87.845876:
https://people.kth.se/~kallej/papers/quadtank_ieeecst00.pdf . The paper PDF and
laboratory recordings are not redistributed. Added delays, disturbances,
quality/fault scenarios, objectives, process transport and operating gates are
organizer adaptations, not an exact experimental reproduction.

The source and generated control development results are research artifacts.
No field acceptance, measurement calibration, chemical no-leak reference, sensor
authority, robot motion or target-hardware permission is supplied.