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  "source_harness": "unmodified PerformanceTest",
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  "upstream_headers_sha256_verified": true,
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  "client_date": "2026-10-12",
  "schema": "one configuration per candidate_id per stage; three throughput and three latency trials retained",
  "workflow_archive_sha256": "e4161dea9922a29170e6d360678f4eb7edf2dedb8a60681b2f6427bc11289499",
  "html_checks": "all tables have seven columns; complete parameter dictionaries; local links valid; native metrics identical across the three reports",
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}