Certificate of Authenticity

Seal & signature

Device signature: ⟠ Verified

Blockchain timestamp (OTS): Sealed

Hash chain (sha256)
f229a4e7357c3292a0f3d62d926fa49224a99507aa568e8afeaad5ff6bc6553a

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.