New Book Number
Every book deserves its own number.
New Book Number (NBN) gives every book a permanent number, with a public record anyone can verify. Leave your email to hear when registration opens.
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The promise
What a number promises
Permanent
Once issued, a number never changes and is never reused.
Verifiable
Every number has a public record that anyone can check.
Independent
NBN is a private registry, separate from ISBN.
Open to agents
Publishers will register on the web, or through their AI agents.