what's HashProof?

HashProof is a Verifiable Credentials API designed for seamless issuance of tamper-proof digital credentials on the Celo blockchain. Developers and institutions can issue credentials via a single API call: the service stores the data in a database, pins the JSON representation to IPFS for decentralized persistence, and registers it on-chain on Celo to ensure immutability and public verifiability. Users receive a unique verification URL, enabling easy sharing and validation without requiring blockchain knowledge. Built for broad adoption, HashProof supports crypto payments through the x402 protocol on Celo, API key authentication for institutional workflows, and agent-compatible skills for AI integration. It powers real-world use cases like event attendance certifications, community participation proofs, and professional credentials, particularly in Latin America, by abstracting blockchain complexities to focus on utility.

HashProof issued 1,000 real-world user credentials on Celo within 23 days of launch.