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Optimism

Optimism aka Optimistic Ethereum is an optimistic rollup layer 2 protocol designed to increase transaction throughput of smart contract operations and token transfers, while retaining most or all of the security provided by the Ethereum main chain.

Connecting your wallet

Most web3 wallets such as Metamask provide a seamless connection to Arbitrum. Connect to app.perp.com and click the "Click to switch now" link on the upper left corner. Metamask will automatically prompt you to add the new network, or switch if you have added it previously.

Project site

Block explorer

Bridges

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Move funds in/out of L2

Useful contract addresses

Clearinghouse

Uniswap v3 Pools

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vBTC

vETH