Reading Time: < 1 min Arbitrum is a layer-two solution for Ethereum that uses optimistic rollups to improve speed, scalability and cost-efficiency. It has its own governance token called ARB and is developed by Offchain Labs, whose founders are computer science experts
from Princeton University. One of the unique features of Arbitrum is its flexibility, allowing developers to write code in popular programming languages like Rust and C++. It’s also very decentralized, with a network of validators who secure the network and
earn fees. Arbitrum’s growing ecosystem of DApps and protocols has resulted in the highest total value locked among all other Layer 2 ecosystems.