Keep Network introduces the concept of keeps, which are secure off-chain repositories designed to store private information. These keeps enable smart contracts to interact with private data while still leveraging the transparency and security of the public blockchain. The network's goal is to ensure the confidentiality of data on the blockchain by using keeps for encryption and storage. The protection of these keeps is managed through secure multi-party computation (sMPC), facilitating the creation, storage, encryption, and transfer of data across various parties without exposing it to the public ledger.