## Model Artifact Plan

Candidate contents:
- four ViT checkpoints used as NeurIPS case studies
- one 1D residual CNN control checkpoint (`pxrd_cnn_control_checkpoint.pt`)
- per-checkpoint role notes
- model card text

Candidate exclusions:
- unused PRX checkpoints
- optimizer states or broad training-history dumps unless needed
- unrelated ablation checkpoints not discussed in the NeurIPS paper