Technology

Presence becomes
verifiable.

A short-lived cryptographic proof binds human presence, device integrity, clear intent and the application challenge.

The verification flow.

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.

An application issuing a unique challengeApplication challenge
A smartphone verifying live human presencePresence or optional FaceDNI
Human liveness and device attestation convergingAI liveness + device attestation
A tamper-evident cryptographic proofSigned proof
A verification decision returned to an applicationAPI decision

Properties

Strong signals.
Small footprint.

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.

Intent-bound

The proof includes the exact action being authorised, preventing reuse in another context.

Short-lived

Fresh challenges and tight expiry windows reduce replay risk.

Privacy-preserving

Applications receive the verification result they need, not an identity dossier.

Hardware-backed

Private keys remain protected by modern secure device capabilities.

Security model

Designed for scrutiny.

Human Link Project separates device trust, presence confirmation, application intent and verification policy. Each boundary can be inspected and improved independently.

Read the technical whitepaper →