Certificate of Authenticity

Seal & signature

Device signature: ⟠ Verified

Blockchain timestamp (OTS): Sealed

Hash chain (sha256)
d55a28a0bc82fcfc0eb56114c8c2800a884c37d16ff51afc4982ef7309e42715

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.