Space and Time (SXT) is a decentralized Layer-1 blockchain and cryptographic data platform purpose-built to connect SQL-based off-chain data to smart contracts through zero-knowledge proofs. It operates as a trustless database for the EVM, enabling verifiable computation at scale. Validators commit fingerprints of every table’s structure and contents, anchoring them on-chain for immutability, while GPU-accelerated Prover nodes run SQL queries off-chain and generate Proof of SQL, compact zero-knowledge proofs that smart contracts can verify in under a second using only about 150,000 gas. This architecture allows developers to join on-chain and off-chain data, publish tamperproof APIs and dashboards, and create verifiable data pipelines for DeFi, gaming, NFTs, and AI. Space and Time indexes data from multiple blockchains, including Ethereum, Bitcoin, Avalanche, Polygon, and ZKsync, supporting both historical queries and real-time logic. The project is governed by the Space and Time Foundation, which supports open development, community governance, and ecosystem growth by funding developers, tools, and educational resources.
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