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    "story_id": "mp-2026-11-08-014",
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    "position": 14,
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    "headline": "Proof Structure Carries a Signal of AI Assistance",
    "slug": "proof-structure-carries-a-signal-of-ai-assistance",
    "dek": "ProofTrace maps immediate support relationships and finds signatures that survive rewording better than text detectors.",
    "summary": "ProofTrace maps immediate support relationships and finds signatures that survive rewording better than text detectors.",
    "body_text": "The study assembles five cohorts totaling 8,281 mathematics papers, including historical work, disclosures of substantive AI use, generated manuscripts and matched problem pairs. ProofTrace represents each proof as a graph of immediate support and extracts features of mathematical organization. AI-generated cohorts relied on fewer external results, more intermediate conclusions and different graph connectivity; disclosed papers occupied intermediate positions that shifted over time. In a separate detector, the structural features remained stable under AI rewording while text-based detectors weakened. Incomplete disclosure and cohort construction remain limitations, so the signal is not proof about any individual paper.",
    "why_it_matters": "ProofTrace maps immediate support relationships and finds signatures that survive rewording better than text detectors.",
    "limitations": [
      "Incomplete disclosure and cohort construction remain limitations, so the signal is not proof about any individual paper."
    ],
    "importance": 8,
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    "first_published_at": "2026-11-08T09:00:00.000-05:00",
    "modified_at": "2026-11-08T09:00:00.000-05:00",
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        "text": "ProofTrace maps immediate support relationships and finds signatures that survive rewording better than text detectors.",
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        "qualification": "Incomplete disclosure and cohort construction remain limitations, so the signal is not proof about any individual paper."
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    "tags": [
      "AI for mathematics",
      "proof structure",
      "provenance"
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    "corrections": []
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  "sources": [
    {
      "source_id": "source-2026-11-08-014",
      "title": "arXiv preprint 2611.08412, original v1",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2611.08412v1",
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      "published_at": "2026-11-05T13:17:18.000-05:00",
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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": "Proof Structure Carries a Signal of AI Assistance",
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