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built-on-base

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sparshsam / openproof

Privacy-first proof-of-existence app for timestamping local SHA-256 file hashes on Base Sepolia.

cryptography typescript nextjs ethereum solidity web3 base agplv3 proof-of-existence tailwindcss privacy-first onchain vercel wagmi rainbowkit viem base-sepolia built-on-base

Updated May 31, 2026
TypeScript

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