{
 "schema_version": "0.2",
 "name": "[[6,4,2]]",
 "code_type": "CSS",
 "n": 6,
 "k": 4,
 "checks": {
  "X": [
   [
    0,
    1,
    2,
    3,
    4,
    5
   ]
  ],
  "Z": [
   [
    0,
    1,
    2,
    3,
    4,
    5
   ]
  ]
 },
 "distance": {
  "d": 2,
  "X": {
   "value": 2,
   "confidence": "upper_bound",
   "witness": [
    0,
    1
   ]
  },
  "Z": {
   "value": 2,
   "confidence": "upper_bound",
   "witness": [
    0,
    1
   ]
  }
 },
 "provenance": {
  "authors": [
   "@MathysRennela"
  ],
  "construction": "error-detecting CSS code (H_X = H_Z = the all-ones row on 6 qubits; reproduced from the Error Correction Zoo entry stab_6_4_2, https://errorcorrectionzoo.org/c/stab_6_4_2)",
  "origin": "submission",
  "date": "2026-09-27",
  "model": "Mimo-V2.6-Flash",
  "notes": "Reproduced from the Error Correction Zoo entry stab_6_4_2 (https://errorcorrectionzoo.org/c/stab_6_4_2); gate found no exact or WL-equivalent board entry."
 },
 "family": "other",
 "locality": {
  "coordinates": [
   [
    2.0,
    1.0
   ],
   [
    1.0,
    0.0
   ],
   [
    1.0,
    1.0
   ],
   [
    0.0,
    1.0
   ],
   [
    2.0,
    0.0
   ],
   [
    0.0,
    0.0
   ]
  ],
  "layers": 1,
  "interaction_radius": 2.2361,
  "contributed_by": {
   "by": [
    "@dorakingx"
   ],
   "date": "2026-10-04",
   "method": "Simulated annealing over site assignments on an integer grid with the repo's own research/local2d/fold_layout.search_layout (max-diameter objective, several bounding boxes and seeds); single layer at radius 4 tried first, then two layers at 7. Radius and per-site occupancy re-measured with the verifier's rule."
  }
 }
}