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 "provenance": {
  "authors": [
   "@FarLab"
  ],
  "origin": "submission",
  "novelty": "known_parameters",
  "construction": "Bivariate bicycle on Z_12 x Z_5, A=[[9, 2], [2, 4], [11, 0]], B=[[7, 4], [4, 2], [0, 3]]. Generated by automated random search over the bivariate-bicycle family (autoresearch pilot). The surrogate distance is an UPPER BOUND that converged and stayed stable through 16k random-restart trials. confidence=upper_bound: distance is NOT exactly certified. Known-parameter status is recorded in provenance.notes.",
  "references": [
   "arXiv:2308.07915"
  ],
  "date": "2026-06-26",
  "notes": "The [[120,8,12]] parameter set is already published: a weight-8 self-dual bivariate-bicycle code (arXiv:2510.05211), and twisted-torus / generalized-toric codes (arXiv:2503.03827, arXiv:2606.17268). This entry is weight-6, so it improves on the weight-8 version, but the parameters are not novel; a code-equivalence audit is pending. Do not present it as a novel-parameter discovery.",
  "model": "Claude Opus 4.8"
 },
 "family": "bivariate-bicycle"
}