◈ Learning Center
Five interactive lessons on fingerprints and timestamps.
No cryptography background needed. Drop a file, change a sentence, and watch the comparisons happen. The live demos are all local to your browser — the file or text you try is not sent to us.
Learning Center demos process your input locally and do not emit analytics events for files, text, fingerprints, edits, or verdicts. Optional video players connect to YouTube only when you load them.
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Understand the concept · 5:30
See the product in action · 6:16
Watch on YouTube: Quantum Notary product walkthrough (opens in a new tab)
Illustrative agreement · Recorded on Base mainnet
Verify without Quantum Notary · 3:03
- A fingerprint for a fileSee where the 64-character result comes from, why its length stays fixed, and what a match can support.
- Change one byte, change the fingerprintMake a small edit and compare the two SHA-256 results. The page measures the difference for real.
- What a fingerprint can't tell youIt can support an integrity and chronology check. It cannot identify an author, establish ownership, or make the contents true.
- The stamp and the dateFollow a browser-computed digest into a Base transaction, see what later blocks do to it, and separate acceptance, submission, receipt observation, and settlement.
- Check it without usAn illustrative dispute shows how a real receipt, the retained file, and Base access support an independent check.