Space and Time is a blockchain supported by Microsoft that focuses on data verified through zero-knowledge (ZK) proofs. It utilizes Proof of SQL, a ZK coprocessor capable of operating in under one second, to let AI agents, smart contracts, and onchain applications query both offchain and onchain data at scale while confirming the outcomes with cryptographic proofs. The system rests on a decentralized layer 1 blockchain where validators check every data entry, sign cryptographic commitments regarding that data, and record them onchain. By using Proof of SQL, developers can access this information and obtain results that are tamperproof and trustless directly onchain. This setup permits smart contracts to verifiably search through the complete history of major blockchains and external sources, fostering a new wave of complex, data-centric onchain applications.
The SXT token exists as an ERC-20 asset on Ethereum and serves as the native utility token for the network. Its uses include staking, paying for data processing, managing access control, and providing incentives to those who contribute data.