`@eth-optimism/contracts` contains the various Solidity smart contracts used within the Optimistic Ethereum system. Some of these contracts are deployed on Ethereum ("Layer 1"), while others are meant to be deployed to Optimistic Ethereum ("Layer 2").

[![codecov](https://codecov.io/gh/ethereum-optimism/optimism/branch/master/graph/badge.svg?token=0VTG7PG7YR&flag=contracts)](https://codecov.io/gh/ethereum-optimism/optimism)

[![codecov](https://codecov.io/gh/ethereum-optimism/optimism/branch/master/graph/badge.svg?token=0VTG7PG7YR&flag=core-utils)](https://codecov.io/gh/ethereum-optimism/optimism)

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