Arbitrum

About Arbitrum

Arbitrum is a layer-2 network that executes transactions off Ethereum mainnet and posts the results back to it, inheriting Ethereum's security while charging a fraction of the fees. It uses an optimistic model: results are assumed valid unless a challenger proves otherwise during a dispute window. Its stack is EVM-equivalent, so contracts written for Ethereum deploy without modification.

Key features

• EVM-equivalent execution — existing contracts deploy unchanged
• Fraud proofs anchored to Ethereum for settlement security
• Substantially lower fees than mainnet
• Orbit framework for launching application-specific chains

Supported Networks

• Arbitrum
• Ethereum

Tags

• Smart Contracts
• EVM