🔧 Inside Lagrange’s ZK Coprocessor: Turning SQL Into Verifiable On-Chain Proofs

Lagrange’s ZK Coprocessor is redefining how we think about data integrity in Web3. Rather than relying on indexers or oracles, developers can submit an SQL query—say, a token volume filter or NFT transfer list—and receive a verifiable zk-SNARK proof that can be checked directly by a smart contract.

This innovation unlocks a new class of “proof-aware” dApps: DeFi protocols that verify eligibility conditions, NFT platforms that confirm creator payouts, or governance platforms that validate on-chain voting snapshots. All in milliseconds, without revealing user data.

The Coprocessor's source code—open-sourced on GitHub as lgn-coprocessor—has already reached v2.0.1, optimized for memory and worker orchestration. Developers can run their own Prover nodes, submit tasks, and earn $LA in return.

It’s a powerful concept: SQL as proof. With ZK baked into the API layer, Lagrange offers a programmable interface to verifiable state. This bridges the gap between traditional data querying and modern smart-contract security.

In short, Lagrange isn't just proving data—it’s proving trust, one SQL query at a time.

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