Commit graph

2 commits

Author SHA1 Message Date
jedarden
e6bf3dd290 feat(pdftract-3s2i): implement Phase 5.5.2 validation filter
Implement per-word validation filter for assisted-OCR BrokenVector path.

Changes:
- Add SpanSource::OcrAssisted variant to hybrid.rs
- Add Span::ocr_assisted() helper method
- Implement validate_ocr_with_position_hints() in ocr.rs
  - 5pt distance threshold for position validation
  - 0.4 confidence cap for rejected words
  - Linear scan for nearest-neighbor lookup
- Add unit tests for validation filter

Closes: pdftract-3s2i

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-24 04:57:17 -04:00
jedarden
7566ab0f0f feat(pdftract-36wlt): implement verify-receipt subcommand + verifier protocol
Implement the pdftract verify-receipt subcommand and the underlying verifier
protocol. The verifier validates receipts against original PDFs by checking:
(1) PDF fingerprint matches, (2) at least one span has bbox overlap >= 90% IoU,
(3) that span's NFC-normalized SHA-256 equals the receipt's content_hash.

Modules:
- crates/pdftract-core/src/receipts/verifier.rs: verifier protocol logic
- crates/pdftract-cli/src/verify_receipt.rs: CLI integration
- crates/pdftract-core/src/document.rs: PDF parsing helpers

Exit codes:
- 0: success
- 10: fingerprint mismatch
- 11: bbox mismatch (no span meets 90% IoU threshold)
- 12: content hash mismatch
- 1: extraction failed

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-23 04:00:15 -04:00