No independent (third-party) confirmation of the Atheist Bible's existence or scale has surfaced despite a genuine search

Following up on claim-suchanek-yago-cocreator-wrote-atheist-bible, which rests entirely on Fabian Suchanek's own description of his self-published "Atheist Bible," a targeted search for third-party confirmation of the book's existence or scale returned nothing. WorldCat returned an HTTP 403 (a blocked check, not a confirmed absence). Searches across Goodreads, Amazon, OpenLibrary, Google Books, Zenodo/DOI/HAL, secular-humanism blogs, press coverage, and Google Scholar's "cited by" index each surfaced either nothing about this specific title or unrelated books that happen to share the phrase "Atheist Bible" — Joan Konner's The Atheist's Bible and Georges Minois's The Atheist's Bible: The Most Dangerous Book That Never Existed are different, unrelated titles. Every hit actually about Suchanek's book traced back to suchanek.name itself.

The book's own page states "ISBN 9798184552996" (exact quote, Tier 1). That number does not resolve in any bookseller, library, or ISBN-registry search performed. A separate, earlier automated web-search summary had reported a different ISBN (978-1-291-72074-7) for the same book — also unverifiable against any registry — suggesting that number was a stale or erroneous search-engine synthesis rather than something drawn from the live page. [unverified-quant — needs primary: neither ISBN could be checked against an actual registry/retailer record]

The absence of a hit is not proof the book lacks independent standing: self-published works routinely sit outside library and retail indexing, and WorldCat's 403 blocks a direct check rather than returning a negative result. Tracked, with further next-steps (a direct ISBN-agency/Bowker lookup, a retry of WorldCat via a different access path), at question-verify-atheist-bible-independent-confirmation.