A revised book's cover author does not establish who wrote each updated passage.
Section credits identify editorial responsibility without proving that every sentence in that section is new.
Record edition, original authorship and explicitly credited section updates; do not infer sentence-level authorship when revision history is unavailable.
Idea
A revised book's cover author does not establish who wrote each updated passage. Preserve the edition and credited update responsibilities, and leave unresolved sentence-level provenance unresolved.
Case
The 2017 Whiskey retains Michael Jackson's name while crediting section updates to other writers. Printed p. 7 / PDF 9 identifies Roskrow's “Understanding Whiskey” update; p. 288 distinguishes 2005 original text and 2017 new text. This supports edition-level and section-level attribution, not a reconstruction of individual edits.
Implication
When comparing this book with Paterson and Smith's Goodness Nose, notice shared contributors and possible source overlap before counting repeated claims as independent corroboration.
