Verify
Verify a Quantum Seal
Drop a Seal image to see what it certifies: when it was made, with which algorithms, and the file’s fingerprint. Nothing is uploaded.
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A Seal is a receipt: it shows what was sealed and how. Its signature is checked when you open the envelope it goes with.
Verify
Read a Seal.
A Seal is a receipt: version, timestamp, algorithm and the SHA-256 of the envelope it goes with. Metadata stays on this device.
Drop Quantum Seal PNG to verify
PNG only · metadata stays on this device