Script 42 tabulates the §III-L five-way per-signature classifier
output on the Big-4 sub-corpus (n=150,442 signatures classified)
and aggregates to document-level (n=75,233 unique PDFs) under
the worst-case rule.
Per-signature five-way overall (Table XV):
HC 74,593 49.58% high-confidence non-hand-signed
MC 39,817 26.47% moderate-confidence non-hand-signed
HSC 314 0.21% high style consistency
UN 35,480 23.58% uncertain
LH 238 0.16% likely hand-signed
Per-firm five-way (% within firm):
Firm A (Deloitte) HC 81.70%, MC 10.76%, UN 7.42%
Firm B (KPMG) HC 34.56%, MC 35.88%, UN 29.09%
Firm C (PwC) HC 23.75%, MC 41.44%, UN 34.21%
Firm D (EY) HC 24.51%, MC 29.33%, UN 45.65%
Document-level (Table XV-B, NEW):
HC 46,857 62.28%
MC 19,667 26.14%
HSC 167 0.22%
UN 8,524 11.33%
LH 18 0.02%
Total 75,233 unique Big-4 PDFs (single-firm 74,854; mixed-firm 379)
§IV v2 changes vs v1:
- Table XV populated with Script 42 counts
- Table XV-B (NEW): document-level worst-case counts
- Per-firm five-way breakdown (% within firm) added
- Per-firm document-level breakdown added
- Document-level paragraph in §IV-J updated to reference Table XV-B
- Phase 3 close-out checklist: item 1 (Table XV TBD) and item 4
(document-level counts) marked RESOLVED; remaining items reduced
from 5 to 3 (renumbering, content audit, codex open-questions)
The per-firm pattern is consistent with the §III-K Spearman-and-
cluster ordering: Firm A's signatures concentrate in HC (81.7%),
the three non-Firm-A firms have markedly lower HC and substantially
higher Uncertain rates (29-46%), with Firm D having the highest
Uncertain rate of the Big-4 -- consistent with the reverse-anchor
score (§III-K Score 2) ranking Firm D fractionally above Firm C in
the hand-leaning direction.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
gbanyan
453f1d8768