Intent-bound
The proof includes the exact action being authorised, preventing reuse in another context.
Technology
A short-lived cryptographic proof binds human presence, device integrity, clear intent and the application challenge.
Every proof is scoped to one interaction. Presence-only mode proves a real human is present without transmitting personal data. When identity is required, FaceDNI adds on-device document matching and AI-powered liveness detection designed to resist deepfakes.
Application challenge
Presence or optional FaceDNI
AI liveness + device attestation
Signed proof
API decisionProperties
The protocol proves presence for a bounded action without identifying the person by default. Identity-document matching is added only when the use case requires it.
The proof includes the exact action being authorised, preventing reuse in another context.
Fresh challenges and tight expiry windows reduce replay risk.
Applications receive the verification result they need, not an identity dossier.
Private keys remain protected by modern secure device capabilities.
Security model
Human Link Project separates device trust, presence confirmation, application intent and verification policy. Each boundary can be inspected and improved independently.