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    "fixed": "Warm public Engine calls, N execution callers within a process affinity set of N distinct physical cores; callers may migrate within that set, joined per phase. Fixed total work regardless of workers. No HTTP/client serialization. Request preparation is outside timing; Engine validation/serialization/commit is inside. Every response and reopen record checked outside timing. Encrypted durable WAL/receipts in both variants. Logical and physical storage reported separately.",
    "sustained": "Public Engine. Encrypted durability in every variant. Read phases run for two seconds with immediate exact response validation. Call latency excludes clone/check work; wall throughput and worker CPU include it. Writes have fixed total work. One/eight OS callers within N distinct physical cores, no dedicated per-thread pin. This is not the server executor or network load balancer. Per-worker complete raw call latency samples and CPU ticks retained."
  },
  "excluded": "Earlier laptop measurements and the aborted tmpfs run are excluded from performance acceptance and public claims."
}