# Gataca Vouch

Gataca Vouch is a product within Gataca Studio that provides secure user authentication via delegated Single Sign-On (SSO) using standard OpenID Connect (OIDC) protocols. 

Clients can define authentication scopes, and users provide information through ID Wallets and verifiable credentials. Standard scopes include email-based SSO and age verification.

Unlike other federated identity systems (Google, Facebook, X, LinkedIn), Vouch does **not** store user information. Users control, manage, and store their own identity data. 

### Gataca Vouch for Age Verification

Gataca Vouch offers an age verification solution that confirms a user’s legal age **without revealing personal information**. It is suitable for sites with age restrictions, such as adult platforms, dating services, online games, social networks, and e-commerce.

Two age assurance methods are available:

* **Age Verification with Gataca App (ID Wallet)**: Users verify their age once in the Gataca App and receive a reusable +18/21 credential for instant access to any site supporting ID Wallets. No repetitive checks required.

<figure><img src="/files/R9OSmyTPPL65wxxEMxIU" alt="" width="375"><figcaption></figcaption></figure>

* **Facial Age Estimation (FAE)**

  Users take a selfie on their phone. In seconds, our AI estimates their age and detects liveness (anti-spoofing), blocking masks, 2D images, or bots. No images stored or IDs required. Unlike the wallet-based approach, this process must be repeated each time the user accesses the site.

<figure><img src="/files/X3bL55RguWGv9Ph5CdPY" alt="" width="375"><figcaption></figcaption></figure>

**Passkeys Integration**\
In addition, Vouch can store age verification results using device-bound passkeys. Once a user completes a check (via ID Wallet or FAE), the result can be saved to their device.

Users can then re-access the service instantly using their device’s fingerprint, face scan, or PIN. Verification results remain valid for up to two weeks.


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