> For the complete documentation index, see [llms.txt](https://build.intract.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://build.intract.io/ecosystem/applications/proof-of-humanity-and-x.md).

# Proof of Humanity & \[X]

Welcome to the future of digital identity verification.

<figure><img src="https://42113319-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FnifXLj3mve7V0SlLTyvp%2Fuploads%2FTW0K5eRSwRmpWavm2dGV%2F316shots_so.png?alt=media&amp;token=acdc1434-154a-4968-8563-7040b6918370" alt=""><figcaption></figcaption></figure>

Intract’s Proof of Humanity (PoH) is a tool built on Persona Protocol to solve a big problem in web3: proving someone is a real person without invading their privacy.

It uses Persona’s tech to set a new standard for safe, fake-proof identities in decentralized systems.

### How It Works with Persona Protocol

#### 1. **Aggregating Cross-Platform Identities**

PoH uses Persona’s **Data Artifacts** to securely unify a user’s identities (Twitter, Discord, Ethereum wallets, etc.) into a single, private profile.

Raw data remains encrypted in the user’s **Persona Repository**, while PoH accesses only permissioned metadata (e.g., activity patterns, tenure).

#### 2. **Dynamic Humanity Scoring**

PoH developed a proprietary **context model** that analyzes aggregated **Data Artifacts** to compute a “Humanity Score” (0-100). This model runs within Persona’s **Secure Enclave Cluster**, ensuring raw data is never exposed.

The score updates dynamically as new **Data Artifacts** are added (e.g., a user’s new Discord activity raises their score).

#### 3. Minting Verifiable Credentials

Users can mint their Humanity Score as a **soulbound NFT**. This NFT acts as a publicly queryable **Context Artifact.** Projects verify scores via a ZK-proof, ensuring privacy. \*\*\*\*

Users retain full control, deciding who can view their score and having the ability to update or hide it at any time.

### Why It Matters

* **For Developers**: A plug-and-play identity layer. Integrate PoH’s pre-trained model via a 10-line API call or customize it using Persona’s tools.
* **For Users**: Own and selectively share proof of humanity—no KYC, no data leaks.
* **For the Protocol**: PoH’s model is now used by 200+ projects to filter 4M+ monthly sybil attempts, showcasing Persona’s scalability.


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