{
  "title": "SheetMason: bounded document-workflow validation",
  "recordType": "Curated summary of existing diagnostic records; not a new validation run",
  "evidenceDate": "2026-10-06",
  "nativeTextWorkflow": {
    "pages": 10,
    "method": "First five pages from each of two native-text drawing sets, using one shared template, provisional visual references, explicit correction, and final approved diagnostic exports.",
    "sheetNumbersMatchingProvisionalReferences": 10,
    "titlesRequiringCommaOrderCorrection": 2,
    "finalExportsPassingProductionAndIndependentPreservationChecks": 10,
    "note": "Two other initial corrections were reference transcription errors; the retained source-literal references were corrected before final scoring."
  },
  "scanCropExperiment": {
    "readableNumberDenominator": 18,
    "readableTitleDenominator": 13,
    "initialNumberMatches": 0,
    "initialTitleMatches": 2,
    "tighterCropNumberMatches": 5,
    "tighterCropTitleMatches": 5,
    "titleRegressions": 2,
    "interpretation": "Fixed-region reuse remained unreliable across the shifted scans."
  },
  "limitations": [
    "Small development workflows with provisional references; not an independent OCR accuracy estimate.",
    "Operator setup time, review time, and savings were not measured.",
    "Export preservation and correct label recognition are separate properties.",
    "The application remains a local alpha with conservative PDF feature restrictions.",
    "Original drawing files are not redistributed with this summary."
  ]
}