Citing JETCARP

If JETCARP helps your research, please cite it. The citation metadata is in CITATION.cff in the repository, which GitHub’s Cite this repository button reads.

The software

Rodgers, J. (2026). JETCARP: Jimmie’s Euclidean Tilings and Cellular Automata Research Program (Version 0.4.0) [Computer software]. https://github.com/jprodgers/jetcarp

In BibTeX (the @software entry type needs biblatex; with a classic BibTeX style, use @misc with the same fields):

@software{rodgers2026jetcarp,
  author  = {Rodgers, Jimmie},
  title   = {{JETCARP}: Jimmie's Euclidean Tilings and Cellular Automata Research Program},
  version = {0.4.0},
  year    = {2026},
  url     = {https://github.com/jprodgers/jetcarp},
  license = {Unlicense OR MIT},
  note    = {Zenodo DOI pending}
}

A paper describing JETCARP is planned. Until it appears, please cite the software.

Results made with JETCARP

When you report something you ran or found with JETCARP, the most useful citation also says exactly what was run:

• The version, since a rule or tiling can change between releases before 1.0 (see Reproducibility).
• The scene, which lets anyone replay the run, and its state hash, which lets them check they got the same result (jetcarp verify). A scene file is small enough to publish as supplementary material.
• For catalogued patterns, the pattern’s id, which is computed from how the pattern evolves, not from the rule it was found in, together with its tiling and rule range.

If you use one of the results on the Findings page, please credit it as “found with JETCARP by Jimmie Rodgers”, and check the claims and flags there before calling it new.

The work JETCARP builds on

Most of what JETCARP runs is other people’s work, and a paper that uses it should cite them too: the rule family’s authors, the tiling’s discoverers, and the authors of any data. Each encyclopedia page gives its references, and the bibliography collects them all. Three cases in particular:

• James Edmond’s priority tables, Spectre glider and evolutionary glider search (Edmond 2026).
• The hat and spectre tilings, by David Smith, Joseph Samuel Myers, Craig S. Kaplan and Chaim Goodman-Strauss (Smith et al. 2023; 2023b).
• The k-uniform tilings, Brian Galebach’s catalogue in the encoding of J. E. Soto Sánchez and co-authors, which JETCARP uses under the Creative Commons Attribution 4.0 licence; that licence asks for attribution when the data are used (see Licence and k-uniform tilings).