# orchid-project.org

Website and released data of **ORCHID** (Open Repository for CALPHAD Hypotheses, Intelligence, and Discovery),
served by GitHub Pages at https://orchid-project.org. Releases are archived on Zenodo (one DOI per version).

- `index.html`, `catalog/`, `best-practices.html` — static, self-contained pages (generated in the ORCHID tooling).
- `data/` — released data: catalog, redistributable TDB files, convex hulls. Licences: `data/LICENSES.md`, `data/NOTICE.md`.
- `llms.txt`, `data/croissant.json`, `CITATION.cff`, `.zenodo.json` — machine-readable metadata.

Only data with clear redistribution rights are published. Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes (https://orchid-project.org/#releases).

## Zenodo release

Release v2026.10 is archived as five citable datasets plus an umbrella record (metadata and file manifests in the
`zenodo/` folder of `orchid-calphad/orchid-data`). `tools/zenodo_release.py plan | bundle | writeback` checks the
records, builds one deterministic zip per record into the ignored `dist/`, and writes the reserved DOIs back into
both repositories; every builder reads the DOIs from `zenodo/dois.json` through `tools/orchid_cite.py`.

## Funding

This work was supported by the U.S. National Science Foundation under awards [OAC-2608825](https://www.nsf.gov/awardsearch/showAward?AWD_ID=2608825) (CSSI Elements: PhaseForge) and [2534344](https://www.nsf.gov/awardsearch/showAward?AWD_ID=2534344) (Autonomous Robotic Metallurgist: An NSF Materials Innovation Platform, ARM-MIP).

## Software and data credits

See [papers and repositories](CITATIONS.md) for pycalphad, ESPEI, PhaseForge, PhaseForge+, Materials Project, and OQMD. [Machine-readable citations](CITATIONS.json) are also provided.