Certificate of Authenticity

Seal & signature

Device signature: ⟠ Verified

Blockchain timestamp (OTS): Sealed

Hash chain (sha256)
01c73a76a8f32894a29285d1ee22d85aed7a345bdcababa41cc08e0ca69c8304

Scan the QR to verify this certificate online yourself.

This certificate attests that the creation process (strokes, pressure, timing) of the work above was recorded and sealed by the Sigan recorder. A hash chain and device signature detect tampering, and anyone can re-verify authenticity at the address above.