SigilloProtect your idea with proof of existence
From € 4.90
Who uses it
A use case for everyone
💡 Protect your idea
Document, draft, screenshot, voice memo — certify any file representing your idea on blockchain. In 8 seconds you have the proof.
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Photographers
Certify before publishing. Proof of priority for copyright.
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Tenants
Document the apartment's condition. Proof of date against false damage claims.
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Consultants
Certify sent business proposals. Proof of idea priority.
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Comic Artists
Certify pages and character designs. Proof of authorship for your creations.
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Developers
Certify source code. Proof of priority for proprietary algorithms.
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Gold Dealers
Satisfies Art. 6 D.M. — data integrity and non-alterability for 10 years.
Learn more →Free trial
Drag a file below. Your browser computes the fingerprint — the file never leaves your device. The first certification is free.
Drop your file here
PDF · Photo · Video · Code · Anything
🔒Your file is NOT uploaded. Only its digital fingerprint.
I miei certificati
How it works
Three steps. Mathematically certain.
Step 1
Digital fingerprint
Your file is never uploaded. The browser computes its unique SHA-256 fingerprint.
Step 2
Immutable blockchain
The fingerprint is anchored on Algorand using a Merkle tree. One TX for thousands of files.
Step 3
Proof forever
You receive a PDF certificate + JSON receipt. Anyone can verify independently of us.
Verify
Verify a Sigillo
Upload the original file to verify it has not been modified.
SUPPORT · FLORENCEEGI
Questions about Sigillo?
Our team is here to help. Contact us for any questions about certifications, plans or technical aspects.
Reply guaranteed within 24 hours on working days.