# PDF visual review

Status: **PASS**

Reviewed file: `deliverables/490d_Chronological_Families_Explanation_C1431_Print.pdf`

- Page count: 26.
- Byte count: 747912.
- SHA-256: `3921e065f43bda0b67b2c5501412adeb2535cf0e21d98221fd860045fd86be68`.

All 26 pages were rendered with PyMuPDF and inspected at layout level in contact sheets. Detailed inspection covered the new Noah subsection on pages 16–17 and the Babylonian chapter on pages 19–20, including its transition to page 21. The final rerender changed only pages 19–20; every other rendered page was pixel-identical to its already inspected predecessor.

The Noah subsection begins on page 16 (“Noah’s lifespan explains a second common refinement”) and concludes on page 17. Its original-word and inverse-head tables are complete; the 1550/600/950 equations and 13636 equality remain legible without clipping or overlap.

The Babylonian chapter begins on page 19. The original orphaned subheading “The Covenant comparison occupies the same field” is corrected: it now starts page 20 with its explanatory paragraph and ordered chain. The two-stage table, both anchored-Key equations, common-70-unit table, and Exodus/Enochian relation are intact.

No actionable layout defects remain. Tables and displayed equations are whole; headings have following content; no off-page text spans, clipped labels, overlapping text, or unreadable glyphs were found. Ordinary prose crosses some page boundaries without loss.

Scope: visual and pagination QA only, not independent arithmetic or source validation. No manuscript, PDF, renderer, research journal, or research-step numbering was edited. Rendered review images are in `prep/pdfqa/`.