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  "text": "Hash chaining each Chronicle entry to its predecessor with a persisted per-tool head digest makes any modification, deletion, or reordering of history break the chain at a determinable point, at the cost of one hash per append.",
  "author": {
    "@type": "Person",
    "name": "Wulf A. Kaal",
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  "citation": "Wulf A. Kaal, Institutional Requirements for Sovereign Local Agent Runtimes (2026). SSRN: https://ssrn.com/abstract=7314479",
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  "abstract": "Give each entry a digest over its own content and its predecessor's digest, and persist the current head digest per tool. Append cost is one hash. Verification is a linear scan. Any modification, deletion, or reordering of history breaks the chain at a determinable point.",
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