Celestia is a next-generation protocol that offers scalable blockchain application infrastructure that allows decentralized apps to perform off-chain computation without compromising on trust. Solving the performance limitations of decentralized systems is key to reach mass adoption. However, many scalability solutions are tied to a specific blockchain. Celestia helps to solve the issue from the ground up by focusing on the real bottleneck: data availability. This approach separates the consensus from the execution layer and makes large amounts of data accessible, ultimately scaling the entire decentralized blockchain ecosystem.