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 "provenance": {
  "authors": [
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  "construction": "Reconstructed from qecdb.org record 6a9e4f39a1dc9c110d5c4e63 (https://qecdb.org/codes/6a9e4f39a1dc9c110d5c4e63); the record's H field is read as binary symplectic rows and split by rowspace (rank(A|B) = rank(A) + rank(B)), keeping the lightest independent basis of each part; n, k and the check weight recomputed here, witnesses from the kit's random search at the trials below. Database description: bivariate bicycle; database distance claim d=15 (lower 15, upper 15).",
  "origin": "submission",
  "date": "2026-09-27",
  "model": "Mimo-V2.6-Free",
  "notes": "Equivalence assessed against the board: no exact stabilizer-group fingerprint match and no Weisfeiler-Leman signature match to any existing entry. Filed as `codes/116-2-15-b.json`, a lighter-check companion to `codes/116-2-15.json` (same [[116,2,15]], max check weight 6 vs 8)."
 },
 "family": "bivariate-bicycle"
}