Description: Optimistic Rollup is a layer 2 scaling solution designed to enhance the efficiency and speed of transactions on blockchains. Its operation is based on the premise that transactions are valid by default, meaning that transactions sent to the network are assumed to be correct unless proven otherwise. This feature allows transactions to be processed more quickly and cost-effectively, as it reduces the need for exhaustive validations on each operation. Instead of requiring every transaction to be verified by all nodes in the network, Optimistic Rollup groups multiple transactions into a single batch, which is then sent to the main chain. This not only alleviates the load on the main network but also allows users to enjoy lower transaction fees and faster confirmation times. Additionally, Optimistic Rollup employs a fraud-proof mechanism, where participants can challenge suspicious transactions, thus ensuring the integrity of the network. This combination of efficiency and security makes it an attractive option for DeFi (decentralized finance) applications that require a high volume of transactions and a smooth user experience.
