All the participation certificates issued by the Luxembourg Art Prize have an electronic signature in the form of a QR code that can be easily checked using a smartphone.
This QR code can be used to verify the authenticity of the certificate at any time.
The QR code leads to a page on the Luxembourg Art Prize website, located at the domain name luxembourgartprize.com
If the QR code takes you to a site with an address on a different domain name, then the certificate you are checking is not genuine and is a forgery.
If you are in the presence of a certificate that does not have a verifiable QR code, then it is a fraudulent certificate and a forgery.
All annual certificates issued since the very first 2015 edition of the Luxembourg Art Prize have a verifiable QR code, no exceptions.