Arbitrum Layer Two Solutions

Architecture

Arbitrum functions as an Optimistic Rollup designed to extend the computational capacity of the Ethereum mainnet. This infrastructure processes transaction data off-chain before submitting compressed state transitions to the primary ledger, thereby mitigating congestion and reducing per-transaction overhead. By utilizing a multi-round fraud proof mechanism, the protocol ensures that execution remains consistent with the underlying layer one security model while significantly improving throughput for decentralized finance applications.