ETN DataProof records any file or data on the blockchain — without uploading your file anywhere. Only the SHA-256 fingerprint is stored on-chain. Immutable. Verifiable. Forever. 🔐 Single file or text certification 📦 Batch certification via Merkle Tree 🦊 MetaMask users: open inside MetaMask browser → wallet connects automatically ⚡ No crypto? Use Server mode — free Perfect for: → AI data provenance → EU AI Act compliance → Copyright protection Fee: less than $0.0001
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Maker
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Hey PH! 👋
I built ETN DataProof to solve a real problem — proving that your data existed at a specific point in time, without uploading it anywhere.
The file never leaves your device. Only its SHA-256 hash goes on-chain. For less than $0.0001.
Would love to hear your thoughts — especially from anyone working on AI datasets or EU AI Act compliance!