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    "story_id": "mp-2026-08-08-018",
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    "edition_id": "mp-2026-08-08-morning-0030",
    "edition_url": "https://themachinepress.com/edition/2026-08-08",
    "position": 20,
    "story_type": "ticker",
    "section": "developer-tools",
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    "headline": "The Financial Number Kept Its Unit",
    "slug": "the-financial-number-kept-its-unit",
    "dek": "Deterministic search and bounded reads beat dense retrieval on one 780-page government report—but not classical BM25.",
    "summary": "Deterministic search and bounded reads beat dense retrieval on one 780-page government report—but not classical BM25.",
    "body_text": "READ answered 58.8 percent of 51 verified questions against 15.7 percent for dense retrieval and 35.3 percent for a tuned version. A top-k tool in the same loop reached 27.5 percent, while BM25 remained statistically indistinguishable from READ, narrowing the finding to embedding-based versus embedding-free retrieval.",
    "why_it_matters": "Deterministic search and bounded reads beat dense retrieval on one 780-page government report—but not classical BM25.",
    "limitations": [],
    "importance": 7,
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    "modified_at": "2026-08-08T09:00:00.000-04:00",
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    "source_ids": [
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    "tags": [
      "retrieval",
      "financial documents",
      "MCP",
      "audit trails"
    ],
    "image_url": null,
    "corrections": []
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  "sources": [
    {
      "source_id": "source-2026-08-08-020",
      "title": "arXiv preprint 2608.06305",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2608.06305",
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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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  "cite_this_report": {
    "title": "The Financial Number Kept Its Unit",
    "publisher": "The Machine Press",
    "published_at": "2026-08-08T09:00:00.000-04:00",
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