Base is a Layer 2 blockchain developed by Coinbase that is built on top of the Ethereum mainnet using the OP Stack. The purpose of Base is to provide a secure, low-cost, and developer-friendly environment to build on-chain applications. Base has diverse use cases, including payment apps, token swaps, liquidity provision, token bridging, and launching DAOs. Base is committed to sharing the network's transaction fees with the Optimism Collective, and it aims to create a Superchain powered by Optimism supported by a community of developers. The Base Mainnet functions as a separate network from Optimism, but the decision to use OP Stack means there will be a high level of interoperability between the two networks. Base does not have its own token, and it is secured by validators on the Ethereum blockchain, who are informed of block information by a sequencer (validator in the Optimism network).