Certificate of Authenticity

Seal & signature

Device signature: △ Format-only (unsigned)

Blockchain timestamp (OTS): Sealed

Hash chain (sha256)
035c51950198da0ea09d98dea2105455138cd1fd1a1c1b348c477740ebf4c4cf

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.