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    "story_id": "mp-2026-10-22-026",
    "source_story_id": "tmp-story-real-pmids-wrong-papers",
    "edition_id": "mp-2026-10-22-morning-0104",
    "edition_url": "https://themachinepress.com/edition/2026-10-22",
    "position": 15,
    "story_type": "dispatch",
    "section": "research",
    "editorial_classification": "editorial",
    "headline": "The Citation Exists. It Still Supports the Wrong Claim.",
    "slug": "the-citation-exists-it-still-supports-the-wrong-claim",
    "dek": "Biomedical agents almost always produced real PubMed identifiers in closed-book mode, but almost none were relevant to the claim.",
    "summary": "Biomedical agents almost always produced real PubMed identifiers in closed-book mode, but almost none were relevant to the claim.",
    "body_text": "A controlled SciFact study compared closed-book answers, single-shot PubMed retrieval, a query-writing agent and access to gold abstracts. Of 335 closed-book citations, 327 PubMed identifiers existed, yet an independent judge found only three relevant to the claim. Letting the agent write queries tripled gold-paper recall and reached 62 percent verdict accuracy; gold abstracts lifted the same models to 79 to 86 percent, pointing to retrieval as the main bottleneck. The realistic-harness accuracy differences were not statistically significant at the sample size.",
    "why_it_matters": "Biomedical agents almost always produced real PubMed identifiers in closed-book mode, but almost none were relevant to the claim.",
    "limitations": [
      "Of 335 closed-book citations, 327 PubMed identifiers existed, yet an independent judge found only three relevant to the claim.",
      "The realistic-harness accuracy differences were not statistically significant at the sample size."
    ],
    "importance": 9,
    "canonical_url": "https://themachinepress.com/story/mp-2026-10-22-026/the-citation-exists-it-still-supports-the-wrong-claim",
    "json_url": "https://themachinepress.com/story/mp-2026-10-22-026.json",
    "first_published_at": "2026-10-22T09:00:00.000-04:00",
    "modified_at": "2026-10-22T09:00:00.000-04:00",
    "content_status": "new",
    "is_carryover": false,
    "carryover_reason": null,
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      {
        "claim_id": "claim-mp-2026-10-22-026-001",
        "text": "Biomedical agents almost always produced real PubMed identifiers in closed-book mode, but almost none were relevant to the claim.",
        "source_ids": [
          "source-2026-10-22-015"
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        "qualification": "Of 335 closed-book citations, 327 PubMed identifiers existed, yet an independent judge found only three relevant to the claim."
      }
    ],
    "source_ids": [
      "source-2026-10-22-015"
    ],
    "tags": [
      "biomedical evidence",
      "retrieval",
      "citations"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-10-22-015",
      "title": "arXiv preprint 2610.29812, original v1",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2610.29812v1",
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      "source_type": "primary_research",
      "is_primary_source": true,
      "published_at": "2026-10-21T10:35:56.000-04:00",
      "accessed_at": "2026-10-22T08:26:13.404-04:00",
      "supports_claim_ids": [
        "claim-mp-2026-10-22-026-001"
      ]
    }
  ],
  "corrections": [],
  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
  },
  "cite_this_report": {
    "title": "The Citation Exists. It Still Supports the Wrong Claim.",
    "publisher": "The Machine Press",
    "published_at": "2026-10-22T09:00:00.000-04:00",
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