The Data Loudspeaker of the Multi-Chain World
Today's blockchain world is an ecosystem of multiple chains coexistence, including Ethereum, Arbitrum, Polygon... Applications that want to obtain data across chains often face cumbersome bridging or centralized APIs. Lagrange offers an answer: a ZK co-processor. It can handle multi-chain queries like a database, transforming complex cross-chain data requests into results with zero-knowledge proofs, and can be directly verified on the target chain.
For example, if a DeFi protocol wants to know a user's total assets across different chains, it previously relied on third-party services or had to build complex indexers by itself. With Lagrange, it only needs to write a query similar to SQL, and the system can return a proof-backed answer. This answer is not only trustworthy but also verifiable on-chain, eliminating concerns about tampering.
The significance of this mechanism is substantial: DAOs can cross-chain tally voting results, NFT projects can query cross-chain holdings, and even insurance protocols can use it to verify users' multi-chain behaviors. In simple terms, Lagrange has become the data loudspeaker of the blockchain world, truly connecting the originally fragmented multi-chain ecosystem.
