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  ],
  "sourceSha256": "2e124037d76b31827e10690f7148a4a62e34e7d47e6bba4aa021326bbce60933",
  "requirementsSha256": "1562cd45452194a553bb9af837d31e54fb70bb0f83af365693aaa6c672957e1a",
  "method": "Fresh HDF5 open per case over the same synthetic in-memory file. Trace read/readinto calls during 32 scalar selections; match exact stored chunk extents; retain metadata reads separately in each step.",
  "limits": [
    "One library build and synthetic trace, not a workload sample or paper replication.",
    "No disk, OS page-cache, latency, throughput, power-loss or device-failure measurement.",
    "Decoded bytes are inferred as raw chunk reads times uncompressed chunk size; filter callbacks were not instrumented.",
    "One slot deliberately forces conflicts; 17 slots is a measured control for this layout, not a universal optimum."
  ]
}