# Why World Chain?

**World Chain** is the first *human-centric* chain, purpose-built to prioritize real users over bots, and unlock the next billion in on-chain activity. Developed by the team behind Worldcoin and built on the OP Stack, World Chain is designed to be a permissionless public network that leverages biometric proof-of-personhood, real-world incentives, and a user-first execution layer.

## What Makes World Chain Unique?

World Chain is a Layer 2 network on Ethereum built by Tools for Humanity (TFH), leveraging three core innovations:

### 1. **Proof of Personhood (via World ID)**

World Chain uses biometric verification (via World ID and the Orb) to determine whether an address is operated by a real human. This enables:

* **Human-only airdrops**
* **Sybil-resistant voting and governance**
* **Prioritized blockspace for verified users**
* **Spam/bot-resistant social applications**

World ID is already being used by **over 5 million people across 160+ countries** (as of May 2025), and growing rapidly.

### 2. **Priority for Real Users**

In a typical L2, bots and MEV traders often dominate the blockspace. On World Chain:

* Verified users get **priority gas access** and **fee subsidies**
* Spam is deprioritized or blocked
* Builders can design apps knowing their users are real

This structure incentivizes the creation of real, useful apps instead of ponzi-style games optimized for bot farming.

### 3. **Local Blockspace + Shared Sequencer**

World Chain combines the decentralization and open access of Ethereum L2s with localized optimizations for verified users. Key points:

* Built using the **OP Stack** (the same tech behind Base and Optimism)
* Uses a **shared sequencer** model for greater interoperability and shared liquidity
* Can integrate future AI-native infrastructure for agent-based UX

## Key Stats (as of Sep 2025)

| Metric                    | Value                                  |
| ------------------------- | -------------------------------------- |
| Verified Users (World ID) | 12M+                                   |
| Daily Active Wallets      | \~M                                    |
| Gas Subsidy Pool          | $25M+                                  |
| Number of dApps Deployed  | 300+                                   |
| Partner Projects          | Holdstation, Symbiotic, UniswapX, etc. |

World Chain is now one of the **top 3 fastest-growing L2s by DAUs** and **#1 by verified user activity per transaction**.

## Why Builders Are Choosing World Chain

| Feature                             | Benefit for Builders                                    |
| ----------------------------------- | ------------------------------------------------------- |
| Verified user base                  | Real engagement, fewer bots                             |
| Gasless transactions                | Onboarding frictionless for new users                   |
| Native support for sybil-resistance | Run fair airdrops, voting, quests, and social apps      |
| OP Stack compatibility              | Easily port over apps from Optimism/Base                |
| Aligned with Worldcoin              | Exposure to the largest biometric web3 identity network |

## Ecosystem Highlights

World Chain already has early adoption from some of the most user-focused and forward-thinking projects:

* **Holdstation** – AI + DeFi wallet with gasless UX, AION agent, Eggs Vault (gamified yield)
* **Symbiotic** – Native restaking layer for aligned security and liquidity
* **WLDPay** – Real-world payment rail with verified wallets
* **SoulWallet** – AA wallet infra for frictionless onboarding

With the Orb as a physical access point and the World App acting as a wallet gateway, World Chain is uniquely positioned to drive **Web2 → Web3 conversion at scale**.

## What World Chain Is Building For

World Chain is not for degens chasing pump-and-dumps. It is for:

* SocialFi builders seeking verified users
* DeFi protocols needing fair distribution
* Governments and NGOs looking to issue UBI, subsidies, or identity credentials
* AI + onchain agent networks that require real human feedback
* Builders who believe in a **user-first web3** future

## TL;DR: Why World Chain

| Criteria   | World Chain Advantage                               |
| ---------- | --------------------------------------------------- |
| Users      | Verified, sybil-resistant, real-world scale         |
| Tech       | OP Stack, shared sequencer, local blockspace        |
| Onboarding | Gasless, seedless, social login (via World App)     |
| Ecosystem  | Backed by TFH & Worldcoin, native user access layer |
| Growth     | Explosive DAU growth, real user activity metrics    |

> **World Chain isn’t just an L2. It’s the human layer of Ethereum.**
>
> Builders who care about users—not just addresses—are building here.