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viem

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TypeScript Interface for Ethereum

viem.sh

wevm/viem

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import type { Chain } from '../types/chain.js' /** * Predeploy contracts for OP Stack. * @see https://github.com/ethereum-optimism/optimism/blob/develop/specs/predeploys.md */ export const contracts = { gasPriceOracle: { address: '0x420000000000000000000000000000000000000F' }, l1Block: { address: '0x4200000000000000000000000000000000000015' }, l2CrossDomainMessenger: { address: '0x4200000000000000000000000000000000000007', }, l2Erc721Bridge: { address: '0x4200000000000000000000000000000000000014' }, l2StandardBridge: { address: '0x4200000000000000000000000000000000000010' }, l2ToL1MessagePasser: { address: '0x4200000000000000000000000000000000000016', }, } as const satisfies Chain['contracts']