Closes the substantive net-new findings Opus round-2 surfaced. All
fixes are structural or disclosure improvements; no empirical
content changes.
N1 — Denominator inconsistency disclosure: §IV-M.4 per-firm D2 ICCR
listing (line 325) now explains the $n = 19{,}501$ Firm C
denominator versus §IV-J Table XIX's single-firm-only $19{,}122$.
The 379 mixed-firm PDFs all resolve to Firm C under Script 45's
mode-of-firms (majority firm) tie-break — empirically Firm C is
the majority firm in every mixed-firm PDF, not a tie-break
artefact. Footnote reconciles both totals (75,233 vs 74,854).
N2 — §III-M validation table completeness: composition-decomposition
diagnostic (§III-I.4; Scripts 39b–39e) — the foundational v4
evidence cited in Abstract / §I item 4 / §VI item 1 — added as
the first row of the §III-M validation table. Updated:
- §I item 8 (Phase 4 line 57): "nine partial-evidence
diagnostics" → "ten partial-evidence diagnostics (§III-M
Table XXVII)"
- §VI item 8 (Phase 4 line 147): "nine-tool unsupervised-
validation collection (§III-M)" → "ten-tool unsupervised-
validation collection (§III-M Table XXVII)"
- Phase 4 internal draft note still says "nine-tool" but is
internal-strip-at-splice; deliberately not edited.
N3 — Table number assigned: §III-M validation table is now
Table XXVII (continues sequential numbering after §IV-M.6's
Table XXVI). Caption: "Ten-tool unsupervised-validation
collection with disclosed untested assumptions."
N4 — Cross-firm hit matrix assumption row rewritten: replaced the
"None — direct descriptive observation" understatement with the
actual dependency disclosure — same-pair joint event yields
97.0–99.96% within-firm at all four firms versus any-pair
76.7–98.8% — plus the §IV-M.4 mode-of-firms tie-break
cross-reference.
Net result: all three substantive Opus round-2 net-new findings
plus N4 closed. N5 (firm-dependent within-firm violation in §V-H)
and N6 (§IV-I stub cross-reference) deferred as low-priority
optional copy-edits.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
gbanyan
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