Arbitrum One operates using the Rollup protocol. Here are some of its aspects: Batch Processing: Transactions are batched together and processed as a single unit on the Ethereum mainnet. This is done to minimize the gas fees and enhance scalability. Data Availability: All transaction data is stored on the Ethereum blockchain, ensuring trustlessness and security. Validator Nodes: Validators process transactions and submit proofs to the Ethereum mainnet. They play a crucial role in ensuring the accuracy and integrity of transactions. Smart Contracts: Developers can deploy smart contracts on Arbitrum One, with the advantage of reduced gas fees compared to deploying directly on Ethereum. To learn more about how rollups operate check out DeFi Teller’s video explainer on this essential blockchain technology: