{
 "schema_version": "0.2",
 "name": "[[38,10,3]]",
 "code_type": "CSS",
 "n": 38,
 "k": 10,
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   [
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 },
 "distance": {
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  "X": {
   "value": 3,
   "confidence": "upper_bound",
   "witness": [
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    18,
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  },
  "Z": {
   "value": 3,
   "confidence": "upper_bound",
   "witness": [
    12,
    29,
    36
   ]
  }
 },
 "provenance": {
  "authors": [
   "@mathysrennela"
  ],
  "construction": "Check deletion and degree-one r=1 removal from board [[40,10,4]]: drop qubits 19 and 31 plus one X and one Z stabilizer; found and reconstructed by MiMo-V2.6-Flash.",
  "origin": "submission",
  "date": "2026-09-26",
  "model": "MiMo-V2.6-Flash",
  "notes": "Found and reconstructed by MiMo-V2.6-Flash."
 },
 "locality": {
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  "layers": 1
 },
 "circuit": {
  "d_circ": {
   "Z": {
    "value": 2,
    "confidence": "upper_bound",
    "witness": [
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   },
   "X": {
    "value": 2,
    "confidence": "upper_bound",
    "witness": [
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    ]
   }
  },
  "rounds": 3,
  "stim_version": "1.16.0",
  "notes": "Generic sequential two-block extraction: one ancilla per check, X checks then Z checks each round with joint reset and measurement layers; CX layers are a proper edge coloring of each Tanner graph (6 X + 5 Z CX layers per round, coloring candidate 0); generated by qldpc submit (research/circuit_autogen.py, seed 0), the first of up to 6 candidates whose RIS screen at 2 rounds found nothing below d; witnesses from RIS on ker(H_dem) at twice the gate's trial budget, validated in GF(2)"
 }
}