Signet – Same Block

# Signet > Signet is a pragmatic Ethereum rollup with sustainable economic incentives. Signet is an Ethereum rollup that enables cross-chain settlement in the same block. For complete documentation with full page content, see: https://signet.sh/llms-full.txt ## Network Configuration (Testnet: Parmigiana Testnet) - Chain ID: 88888 - RPC URL: https://rpc.parmigiana.signet.sh - Host RPC URL: https://host-rpc.parmigiana.signet.sh - Explorer: https://explorer.parmigiana.signet.sh ### Key Contracts (Host Chain) - Zenith: `0x143A5BE4E559cA49Dbf0966d4B9C398425C5Fc19` - HostOrders: `0x96f44ddc3Bc8892371305531F1a6d8ca2331fE6C` - Passage: `0x28524D2a753925Ef000C3f0F811cDf452C6256aF` - Transactor: `0x0B4fc18e78c585687E01c172a1087Ea687943db9` ### Key Contracts (Rollup) - RollupOrders: `0x000000000000007369676e65742d6f7264657273` - RollupPassage: `0x0000000000007369676e65742d70617373616765` - WUSD: `0x0000000000000000007369676e65742D77757364` ## Key Constraints & Requirements - Signet is an EVM-compatible Ethereum L2 rollup — all standard Solidity contracts and EVM tooling work without modification - Uses based sequencing: the Ethereum L1 host chain proposes and validates rollup blocks via the Zenith contract - Cross-chain operations (bridging, orders) require interaction with host chain system contracts (Passage, HostOrders, Transactor) - Settlement is atomic with Ethereum — rollup state transitions are finalized in the same L1 block - The native currency on the rollup is USD (wrapped as WUSD); the host chain uses ETH - All system contracts are predeployed at deterministic addresses (see contract addresses above) ## Integrations - **Ethereum tooling**: viem, ethers.js, web3.js, and wagmi work out of the box — connect to Signet RPC like any EVM chain - **Wallets**: MetaMask and any EVM-compatible wallet can be configured with the Signet RPC URL and chain ID - **Smart contracts**: Deploy and interact with Solidity or Vyper contracts using Hardhat, Foundry, or Rem