Timestamp your ideas
on the blockchain.
Your text or file is encrypted in the browser, the proof stored on the Cardano blockchain, and verifiable anytime. Your original never leaves your device.
3 ada per proof . No subscription, no account.
How the Commit-Reveal Scheme Works
1
Commit
Enter your text or upload a file. A SHA-256 hash is computed in your browser with a random salt. Only the hash goes on-chain.
2
Store
The hash is written to the Cardano blockchain as transaction metadata - timestamped, permanent, and tamper-proof. Like a digital notary stamp, available 24/7.
3
Verify
Share your original text or file and salt. Anyone can recompute the hash, verify it against the on-chain proof, and confirm the exact timestamp.