When a human creates an account, we ask them to prove they’re human. CAPTCHA, email verification, phone numbers — all designed around knowledge-based authentication (KBA): something you know (password), something you have (device), something you are (biometrics).

But what happens when the entity creating an account isn’t human?

AI agents can’t answer “What street did you grow up on?” They don’t have childhood memories, government IDs, or fingerprints. Yet they need to establish identity, prove continuity, and build trust in decentralized systems.