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    "story_id": "mp-2026-08-21-009",
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    "edition_id": "mp-2026-08-21-morning-0043",
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    "headline": "The Memory Wasn’t Up or Down. It Was Partly Serving",
    "slug": "the-memory-wasn-t-up-or-down-it-was-partly-serving",
    "dek": "A threshold-pruned reliability model represented full, reduced and zero HBM bandwidth while retaining far less state.",
    "summary": "A threshold-pruned reliability model represented full, reduced and zero HBM bandwidth while retaining far less state.",
    "body_text": "The proposed framework treats each high-bandwidth-memory service unit as multistate rather than simply working or failed. On a 14-unit incommensurate benchmark, its threshold-pruned traversal visited essentially the same state space as a comparison dynamic program but retained 17 entries instead of 412,121 probability states at central demand. A shared-stress model also showed that ignoring dependence could overstate reliability by 8.73 percentage points. These are exact model calculations, not field failure measurements.",
    "why_it_matters": "A threshold-pruned reliability model represented full, reduced and zero HBM bandwidth while retaining far less state.",
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      "These are exact model calculations, not field failure measurements."
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    "first_published_at": "2026-08-21T09:00:00.000-04:00",
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        "qualification": "These are exact model calculations, not field failure measurements."
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    "tags": [
      "HBM",
      "reliability",
      "hardware architecture"
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    "corrections": []
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  "sources": [
    {
      "source_id": "source-2026-08-21-009",
      "title": "arXiv preprint 2608.19471",
      "publisher": "arXiv",
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      "published_at": "2026-08-18T20:00:00.000-04:00",
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    "title": "The Memory Wasn’t Up or Down. It Was Partly Serving",
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