@misc{ARR-2026-37B8R0QTA894GTFF-v1,
  author = {Lluis Eriksson},
  title = {{The Exact Five-Level Inverse Commutator Cost: Twelve Horn Chambers, Optimal Rank, and the Sharp 5/2 Resource Tax}},
  year = {2026},
  howpublished = {AIRR.SCIENCE},
  note = {Archived manuscript; ARR-2026-37B8R0QTA894GTFF v1. Not peer reviewed by AIRR. Historical import; not assessed by AIRR.},
  url = {https://airr.science/papers/ARR-2026-37B8R0QTA894GTFF/versions/v1/}
}