Research
March 2, 2026 / Identity
Proof of Person
A cryptographic primitive for proving personhood without surrendering identity.
Most identity systems on the open internet conflate two questions: Are you a real person? and Which real person are you? Conflating them is what makes surveillance economic.
Proof of Person separates them. A bearer can prove the first without ever answering the second to anyone but themselves. The proof is short, non-transferable, and never printed.
This paper specifies the construction, the threat model, and the integration boundary with Atlas. It is the protocol that lets Supah refuse to be a data broker.