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Introduction ​

ValidFi is GuardZero's decentralized health credential platform, built on the Stellar Soroban smart contract platform.

Health authorities issue encrypted vaccination credentials that are anchored on-chain. Holders keep control of their data and can prove their vaccination status to venues, employers or travel authorities with zero-knowledge proofs. The verifier learns whether the claim is true and nothing else.

Who this is for ​

Repositories ​

RepoWhat's in it
ValidFiSoroban contracts (Rust), NestJS backend, Next.js frontend, Circom circuits
sdk@guardzero/sdk, the TypeScript client for the API and contracts
docsThis site

Early stage

ValidFi is under active development. Some components described in the ValidFi README are still being built. Check the open issues for current status.