Arbitrum (ARB) is a token of a technology package designed to scale Ethereum. You can use Arbitrum chains for everything that users do in Ethereum: use Web3 applications, deploy smart contracts, etc., but transactions will be cheaper and faster.

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Ahoy Arbinuats! Let’s welcome OpenSea into the Arbitrum ecosystem! 💙🚤

Starting tomorrow, you’ll be able to buy and sell NFTs that live on Arbitrum One directly on OpenSea!

Ahoy Arbinuats. Let's welcome OpenSea into the Arbitrum ecosystem.