Certificate of Authenticity
Alejandro Castro
The Happy Face
Details
Production year
2023
Object type
Collectible
Edition
Edition 1/1
Dimensions
10 × 6 × 0.5 cm
Medium
Paper
Certificate of Authenticity
Our patented certificates are designed to evolve over time, unlike paper certificates. All changes to the certificate are registered on the blockchain, proving a clear and trusted timeline of the certificate’s evolution.
Verified issuer
Creator authorized
Physical link
Created by
Alejandro Castro, 1994
Signed by
Certificate Signature
Issued by
Alejandro Castro
Owned by
Private
History
Transferred
Feb 28 2023 16:04:40 UTC
Upgraded
Feb 28 2023 14:01:47 UTC
Transferred
Feb 28 2023 01:05:43 UTC
Transferred
Feb 28 2023 01:02:24 UTC
Created
Feb 27 2023 23:14:24 UTC