# World Chain data apps

> World Chain is an OP Stack layer 2 that gives verified humans priority blockspace. Its apps cover World ID verifications, activity and the World App wallets on it.

Markdown copy of https://voltfincrypto.com/chains/world-chain

## Ethereum

- [Multicall3, Permit2 and EntryPoint Addresses by Chain](https://voltfincrypto.com/apps/multicall3-permit2-entrypoint-addresses) (table, planned): Is Multicall3, Permit2 or an ERC-4337 EntryPoint deployed on a given chain, at its usual address and with the expected code?

## Layer 2s

- [EVM Chain List: Chain IDs, Native Tokens and RPC Support](https://voltfincrypto.com/apps/evm-chain-list) (table, planned): What is the chain ID and native token of each EVM chain, and which RPC methods do its public endpoints support?
- [World Chain Stats: Activity, Gas and Priority Blockspace for Humans](https://voltfincrypto.com/apps/world-chain-stats) (dashboard, planned): How busy is World Chain, and how much of its block space goes to verified humans through priority blockspace?
- [L2 Bridge Flows: Net Deposits from Ethereum by Chain](https://voltfincrypto.com/apps/l2-bridge-flows) (dashboard, planned): Which layer 2s are gaining or losing assets through their canonical bridges with Ethereum?
- [L2 Withdrawal Times to Ethereum by Rollup](https://voltfincrypto.com/apps/l2-withdrawal-times) (dashboard, planned): How long does a native withdrawal from each layer 2 to Ethereum take right now?
- [OP Stack Chains: The Superchain List Compared](https://voltfincrypto.com/apps/op-stack-superchain-chains) (table, planned): Which chains run on the OP Stack, which belong to the Superchain and how do they compare?
- [WETH and Wrapped BTC Token Addresses by Chain](https://voltfincrypto.com/apps/wrapped-btc-eth-token-addresses) (table, planned): What is the WETH, WBTC or cbBTC contract address on each chain, and who issues or backs each one?
- [Rollup Decentralization: Upgrade Keys and Exit Windows](https://voltfincrypto.com/apps/rollup-decentralization) (table, planned): Who can upgrade each rollup's bridge contracts, and how much notice do users get before an upgrade?
- [L2 Sequencer Uptime: Block Production Gaps by Chain](https://voltfincrypto.com/apps/l2-sequencer-uptime) (dashboard, planned): Is each Ethereum layer 2 producing blocks on schedule, and when did block production last stall?

## Layer 1 chains

- [World ID Verified Humans and World Chain Activity](https://voltfincrypto.com/apps/world-id-verified-humans) (dashboard, planned): How many people have been verified with World ID, and how active are they on-chain?

## DeFi

- [Uniswap v4 Hooks: Volume and Liquidity by Hook](https://voltfincrypto.com/apps/uniswap-v4-hooks) (table, planned): Which Uniswap v4 hooks attract the most volume and liquidity?