Notes on verification

Multiple independent sources (NDL catalog, publisher Maruzen, and bibliographic database hanmoto.com) converge exactly on the described 13-section structure, appendix, and indexes. [tier=silver indep_score=0.525 clusters=2 claim_tier=everyday | framework convergence=partial on The table-of-contents metadata appears to originate from the publisher-supplied JPRO (Publication Information Registration Center) record, which both NDL Search pages and possibly other retailer sites draw from, though the publisher's own site independently confirms the same content in more granular form (actual entry-level listings), suggesting the structure is genuinely the book's actual content, not just a repeated single metadata string. (upstreams: 出版情報登録センター（JPRO） (Japan's Publication Information Registration Center, which supplies the catalog summary/TOC data used by NDL Search)) — publishers independent, evidence may not be | kind=attributed eligibility=high (extractor: attributed/medium)]