{
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 "distance": {
  "d": 7,
  "P": {
   "value": 7,
   "confidence": "upper_bound",
   "witness": {
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 "provenance": {
  "authors": [
   "@mrvee-qC-bee"
  ],
  "construction": "Published plain CPM fold: arXiv:2609.30069v1 VII.4, parent codes/104-30-8.json from arXiv:2607.14091. P=13, E=[[0, 0, 0, 0, 0, 0, 0, 0], [0, 7, 11, 5, 2, 12, 6, 3], [0, 2, 7, 9, 1, 5, 4, 8]], D=[[0, 4, 12, 3, 3, 12, 4, 0], [0, 1, 3, 4, 1, 4, 0, 3], [0, 5, 6, 11, 0, 5, 6, 11]], affine map={'sigma': [5, 7, 4, 6, 2, 0, 3, 1], 'rho': [2, 0, 1], 'alpha': [10, 2, 3], 'beta': [11, 12, 1, 2, 12, 2, 11, 1], 'eta': 1}. Parent column ell*P+t; pairs (q,pi(q)) with q<pi(q) ordered by q; use first/second pair component of each X check as X/Z.",
  "origin": "submission",
  "date": "2026-10-01",
  "model": "GPT-6 Astra",
  "notes": "Published [[52,15,7]] plain fold by Jong Yeon Lee, Koki Okada, Nishad Maskara, Kenta Kasai, Hengyun Zhou, arXiv:2609.30069v1 VII.4. Constructed from the exact published 104-qubit parent. Retained trusted-search distance upper bound; no exact certificate.",
  "references": [
   "arXiv:2609.30069v1",
   "arXiv:2607.14091"
  ],
  "novelty": "known_parameters"
 },
 "family": "pair-partition-cpm"
}