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    "story_id": "mp-2026-10-25-018",
    "source_story_id": "tmp-brief-conqec-concolic-testing",
    "edition_id": "mp-2026-10-25-morning-0107",
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    "section": "developer-tools",
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    "headline": "Quantum Error Correction Gets a Replayable Bug Witness",
    "slug": "quantum-error-correction-gets-a-replayable-bug-witness",
    "dek": "ConQEC combines concrete Pauli faults with symbolic repair paths to report the first divergent decoder or recovery stage.",
    "summary": "ConQEC combines concrete Pauli faults with symbolic repair paths to report the first divergent decoder or recovery stage.",
    "body_text": "ConQEC generates fault-syndrome-decoder-recovery traces instead of reporting only a final logical failure. On generated families and public artifacts reaching thousands of qubits, it found every seeded bug and returned a replay-valid witness. Seeded experimental cases do not establish completeness for all quantum-error-correction implementations.",
    "why_it_matters": "ConQEC combines concrete Pauli faults with symbolic repair paths to report the first divergent decoder or recovery stage.",
    "limitations": [
      "ConQEC generates fault-syndrome-decoder-recovery traces instead of reporting only a final logical failure.",
      "Seeded experimental cases do not establish completeness for all quantum-error-correction implementations."
    ],
    "importance": 8,
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    "first_published_at": "2026-10-25T09:00:00.000-04:00",
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        "text": "ConQEC combines concrete Pauli faults with symbolic repair paths to report the first divergent decoder or recovery stage.",
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        "qualification": "ConQEC generates fault-syndrome-decoder-recovery traces instead of reporting only a final logical failure."
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    "tags": [
      "quantum software",
      "testing",
      "error correction"
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    "corrections": []
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  "sources": [
    {
      "source_id": "source-2026-10-25-020",
      "title": "arXiv preprint 2610.31443, original v1",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2610.31443v1",
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      "published_at": "2026-10-22T11:40:04.000-04:00",
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  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
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    "title": "Quantum Error Correction Gets a Replayable Bug Witness",
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