What Is Arbitrum

Arbitrum is a Layer 2 scaling solution for Ethereum, designed to improve transaction speed and reduce costs by offloading most computational work off-chain while maintaining Ethereum’s security through rollups. It supports decentralized applications (dApps) and smart contracts with full Ethereum compatibility, enabling faster, cheaper transactions without sacrificing security. Arbitrum uses optimistic rollups, where transactions are assumed valid unless challenged, allowing it to handle more transactions at lower fees while benefiting from Ethereum’s decentralized network.