What does Arbitrum do?

Arbitrum is a Layer 2 blockchain scaling platform built on Ethereum, designed to enhance transaction speed and reduce costs for decentralized applications (DApps). Utilizing optimistic rollups, Arbitrum processes transactions off-chain and settles proofs on Ethereum, achieving throughput of up to 40,000 transactions per second while maintaining Ethereum's security. Developed by Offchain Labs, Arbitrum offers a range of services including Arbitrum One, its primary rollup chain, and Arbitrum Nova, optimized for gaming and social applications. The platform also features Arbitrum Orbit, which allows for the creation of custom chains, and Arbitrum Stylus, enabling smart contract development in multiple programming languages. Governed by the Arbitrum DAO, the platform supports a diverse ecosystem of nearly 500 protocols and billions in total value locked, making it a significant player in the Ethereum landscape.