How verification works

ZYKAY uses zero-knowledge proofs so partner websites can verify required attributes (for example isAdult) without receiving your personal identity data.

Current user flow

1. Partner starts a verification session

A partner website asks for one or more attributes (for example: adult status, nationality, uniqueness).

2. You open ZYKAY on your phone

• On desktop: scan the QR code
• On mobile: tap the continue button

3. You approve in the ZYKAY app

The app runs the verification flow on your device and generates the proof.

4. Result is sent back to the partner

You are redirected back to the partner website with a valid verification result.

First verification vs returning verification

First verification

The app may require additional identity checks before issuing the first proof.

Returning verification

If your device already has the required cryptographic material, verification is much faster and can be near-instant.

What partners can request

Common attributes include:

• isAdult
• isFrench
• isEU
• isUnique

The partner chooses which attributes are needed for its own policy.

Important notes

• No browser wallet is required for this flow
• No PDF upload is required for this flow
• Your verification identity is tied to your device key, not a browser wallet address