Akashi Notari – On-chain Proof of Existence for any file in 60s for

Show HN: Akashi Notari – On-chain Proof of Existence for any file in 60s for <$1

Akashi Notari – On-chain Proof of Existence for any file in 60s for is active in the show hn launch space.

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Hi HN,I built a simple tool to solve a problem I've faced as a developer and freelancer: how can you definitively prove a file (like code, a contract, or a design) existed at a specific time?It's called Akashi Notari, and it’s a simple utility for creating an on-chain "Proof of Existence." It lets you anchor any file's cryptographic hash on the blockchain (supports Base, Ethereum, Optimism). And costs less than a dollar.The main focus is privacy and simplicity:- *100% Private:* Hashing (SHA-256) is done entirely in your browser. The file never leaves your computer. Only the calculated hash is sent to the blockchain. - *Fast:* The whole process, from file drag-and-drop to a confirmed transact

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Website: akashi-notari.com