## Dataset Artifact Plan

Candidate contents:
- frozen `RRUFF-473` benchmark files
- frozen `RRUFF-325` benchmark files
- benchmark ID lists / checksums
- reviewer subset matching the GitHub reviewer docs
- compact aggregate extinction-group prior used for calibration
- dataset card text

Candidate exclusions:
- files already kept only for the PRX archival release
- large unrelated training corpora
- raw ICSD structures, raw diffraction records, and per-structure synthetic
  training records
- private intermediate curation outputs