- corpus-licensing.md: OQ-01 resolution - all fixtures are synthetic with no external licensing
- font-fingerprinting.md: OQ-02 resolution - Level 3 fingerprint database methodology and curation pipeline
- ocr-accuracy.md: PB-3 fallback plan - Tesseract WER targets (3% primary, 5% fallback) with methodology
- pdf-2-coverage.md: PB-10/R10 analysis - PDF 2.0 feature compatibility matrix
All four files are required phase sign-off artifacts referenced in the plan.
Resolves OQ-01, OQ-02, PB-3, PB-10.
