# Manuscript-level source-reading evidence

[Ledger v18](checkpoints/manuscript-ledger-2026-10-09-v18.json): **51 selected-section manuscript records and 147 source hashes** among 719 manuscripts. The other 668 await earlier-reading imports or individual review. All 372 family assessments remain separate first-pass coverage. Neither count accepts proofs.

Family 235 adds four manuscript records for limiting random-SAT thresholds, two variance results and threshold computability. Four PDF first pages were visually inspected. [Exact extents, formal boundaries and finite benchmark evidence](prototypes/random-sat-stream-2026-10-09-v1/report.md). Source algorithms, full proofs and kernels were not executed; earlier evidence remains preserved.