Celestia (TIA) is the first modular blockchain network that enables anyone to easily deploy their own blockchain with minimal overhead. Celestia scales by rethinking blockchain architecture from the ground up. It is a minimal blockchain that decouples execution from consensus by introducing a new primitive, data availability sampling. Since Celestia does not impose any execution or settlement constraints, developers are free to define their own execution and settlement environments. This unlocks new, unrealized possibilities for builders and developers.