Historical usage-statement integrity test

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{
  "schemaVersion": 1,
  "publicSummaryVersion": "2026-09-30",
  "classification": "PUBLIC",
  "title": "Historical usage-statement integrity test",
  "summary": "On 31 August 2026, a test on hosted hardware verified that a downloadable usage statement matched its source statement and priced lines, retained a verifiable relationship to the prior statement and detected alteration. It was explicitly a usage statement, not a tax receipt. A 17 September amendment changed how the test account was funded after customer credit-changing operations were closed. This version says the amended rerun was still pending an authorized test window. The original passing result does not establish a completed amended production rerun.",
  "date": "31 August 2026",
  "scope": "Historical record; any production observation is limited to the dated test described below.",
  "result": "On 31 August 2026, a test on hosted hardware verified that a downloadable usage statement matched its source statement and priced lines, retained a verifiable relationship to the prior statement and detected alteration. It was explicitly a usage statement, not a tax receipt. A 17 September amendment changed how the test account was funded after customer credit-changing operations were closed. This version says the amended rerun was still pending an authorized test window. The original passing result does not establish a completed amended production rerun.",
  "sections": [],
  "currentDeployment": "Not independently verified by this historical evidence.",
  "canonical": "/evidence/phase-cp-c4"
}

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SHA-256 6894c7cff44a269405d171482ebf7342ca2c3fe00f03d4b36a3b44065e7b8289