A library that keeps growing

Read the canon. Then discover what almost happened.

Published books can reveal selected branches, alternate endings, translation histories, and the people and tools behind every chapter.

A library that keeps growingProof of
Human1 × 1 AI

Chapters: 1Human-led. AI-extended.

Proof of Human

In 2031 publishers accept manuscripts only with a Proof of Human certificate. Jonah Reyes, the last novelist who writes alone, keeps failing the detector: his prose is flagged as too perfect to be human. A novel about proving you are human — written in public by humans and their AIs, arguing over every chapter.

ENCo-authors: 1Story branches: 3

Start reading

The first page is yours

Your story already has more than one future.

Open the first branch, invite a co-author, and decide together what becomes canon.

Start writing