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  ]
 },
 "distance": {
  "d": 15,
  "X": {
   "value": 15,
   "confidence": "upper_bound",
   "witness": [
    11,
    13,
    24,
    50,
    52,
    66,
    67,
    85,
    88,
    94,
    100,
    106,
    111,
    117,
    126
   ]
  },
  "Z": {
   "value": 15,
   "confidence": "upper_bound",
   "witness": [
    3,
    12,
    13,
    19,
    27,
    35,
    50,
    51,
    52,
    57,
    88,
    100,
    108,
    114,
    126
   ]
  }
 },
 "provenance": {
  "authors": [
   "@mathysrennela"
  ],
  "construction": "2BGA on cyclic group C64, weight-6 random supports a=[12,13,25,26,44,51] b=[4,22,32,36,38,59]",
  "references": [
   "arXiv:2306.16400"
  ],
  "date": "2026-07-28",
  "model": "Xiaomi MiMo-V2.5",
  "notes": "Found by GAP-enhanced autoresearch (see fieldnotes/2026-07-28-gap-campaign-results.md). 2BGA code on C64, weight-6 random supports. Distance upper bound confirmed flat across 400->2k->8k->60k->1M RIS trials. Literature novelty unverified."
 },
 "family": "generalized-bicycle"
}