Celestia is the first modular blockchain network and data network designed to make it simple for users to create their blockchain easily. With Celestia, transactions are just ordered and published, not carried out, as with other blockchains. The blockchain technology stack is modularized by Celestia, opening up new opportunities for developers of decentralized applications by separating the consensus and application execution layers. It was founded in 2019 by co-founders Mustafa Al-Bassam and Ismail Khoffi. Celestia helps customize blockchain in an easy way that can be deployed as a smart contract.