{
  "capability_id": "engineering.measurement.error",
  "calculation_version": "1.0.1",
  "protocol_version": "1.0.0-proposed",
  "protocol_document_status": "proposed",
  "verification_revision": "2026-09-25.o2-o3",
  "claim_scope": "O2: signed measurement error vs a separate-module subtraction (≤2 ULP). Not percent error, not En, and not a z-score. ≤2 ULP vs O3 applies only to the published tabulated measurement-error vectors. Not percent error.",
  "oracle": {
    "class": "O3",
    "library": "mpmath 1.4.1",
    "mpmath_dps": 80,
    "backend": null,
    "rounding": null,
    "independent_of_iut": true,
    "generator_id": "measurement-error-mpmath-o3",
    "generator_version": "1.0.0",
    "generator_sha256": "a9a9edcde648e1f5b706211a65eb0d44d8e977a8e8712e9e5d50cecc720a2686",
    "table_sha256": "46eeec218bb2d8ff4460d6d43dfa6cbb0e7ae6b9a3cb255180569e910821c551"
  },
  "result_summary": {
    "passed": 8,
    "total": 8,
    "failed": 0,
    "max_error_ulp": 0,
    "threshold_ulp": 2,
    "max_threshold_ulp": 2
  },
  "public_files": {
    "manifest": "/evidence/engineering.measurement.error/1.0.1.cvp.json",
    "this_file": "/evidence/engineering.measurement.error/reproduce.json"
  },
  "vectors": [],
  "disclosure": {
    "policy": "calculatorx-public-evidence-v1",
    "full_validation": "private",
    "representation": "summary",
    "kind": "reproduce"
  }
}