# XHS Scoring Algorithm

XHS is an Adaptive Proof of Humanity scoring system that verifies human identities through a combination of biometric scanning, social graph analysis, and verification at physical events on <https://xname.app>. User privacy is ensured through on-chain Zero-Knowledge Proof (ZKP) verification (Stage 3) and local enclave storage of biometric information.

In stage 3, XStar will generate and publish ZKP proofs for each user's namespace and XHS score on existing Layer 1 (L1) or Layer 2 (L2) blockchain networks. This approach allows users to selectively disclose their verified personal information while maintaining privacy and control over their data.

For facial verification, XSTAR has partnered with Facetec, streamlining the onboarding process with quick and secure facial recognition checks. This integration allows user onboarding, enabling a personalized onboarding journey across any Web3 platform. More information can be found at: <https://www.facetec.com/security>&#x20;

### Adaptive Humanity Score (XHS) Calculation

<figure><img src="/files/DTrwLiF1CoFOb1tyHZMF" alt=""><figcaption><p>XHS Scoring System</p></figcaption></figure>

The calculated XHS falls into one of four ranges, each representing a distinct level of human verification: (Where % is of the total number of users)&#x20;

#### 1. Base Level (0% ≤ XHS < 50%)

#### 2. Bronze Level (50% ≤ XHS < 75%)

#### 3. Silver Level (75% ≤ XHS < 95%)

#### 4. Gold Level (95% ≤ XHS ≤ 100%)

<figure><img src="/files/tCoIWQOSYmd5pejCXzGX" alt=""><figcaption><p>XHS Score Thresholds</p></figcaption></figure>


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