Service Certifies Books as Human-Authored for $60
Proudly Human's detector-based check is operating now, and Big Five publishers are in talks about adopting it.
Updated on Nov. 6, 2026 in Artificial Intelligence
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Proudly Human, an Australian service founded late last year by former Australian chief scientist Alan Finkel, certifies books and cultural products as made by people for $60 per title, paid only on approval. The service is operating now; it is not a pending product. Certification requires authors to attest that their AI use was de minimis.
Why it matters
The certification sits at the intersection of AI-text detection and copyright-style provenance, a problem that has grown since ChatGPT's release. The idea grew out of Finkel's own book, which he finished months after that release, and he expects some shakeout among certification services.
Each manuscript is scored by four commercial AI detectors, with the most divergent scores discarded and the remainder averaged against thresholds of 10% and 30% AI-generated content. The company tests its detectors nightly against books known to be human- or AI-written, but the source does not report measured accuracy rates.
The players
Proudly Human
An Australian certification service that verifies books and cultural products as human-made, using commercial AI detectors and a nightly test regime.
Alan Finkel
Former Australian government chief scientist who founded Proudly Human and wrote Powering Up.
The Authors Guild
A U.S. authors' advocacy organization whose Human Authored mark appears on about 6,500 books.
Books by People
A competing certification service based in the United Kingdom.
The details
Authors attest that their AI use was de minimis before submission. The manuscript then runs through four commercial AI detectors, which are software tools that estimate the share of text likely generated by a language model. Outlying scores are dropped and the rest averaged, so one unreliable detector cannot decide the outcome alone. The company checks its detectors every night against books of known origin to catch drift.
Timeline
February 2023: Finkel finishes Powering Up, months after ChatGPT's release.
Late 2025: Proudly Human is founded by Alan Finkel.
November 6, 2026: Coverage of the certification service is published.
The Tech Race
Proudly Human competes directly with Books by People in the United Kingdom, and both position themselves against the Authors Guild's Human Authored mark, which already appears on about 6,500 books. The contest is over which verification method, detector-based scoring or author attestation, becomes the reference standard for human authorship.
Authors who want a human-authored label can submit a manuscript for $60 per title, with the fee charged only if the book is approved. Journalists can be certified for $10 a month, and publishers in talks with the company may eventually encounter certified titles in their own catalogs.
The takeaway
Whether detector-based certification becomes the reference standard for human authorship will depend on how the Big Five publishing houses respond to their talks with Proudly Human. Watch for any announced certification agreement with those houses as the clearest signal of where the market is heading.
Further reading
For the broader debate over detecting machine-written text, see the Artificial Intelligence section.
Source note: This article includes information reported by PublishersWeekly.
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