With the increased quality of camera and scanning technology now available, artist copyright and authenticity of a print are becoming an ever-important issue. Therefore when you are creating a limited edition print run it is advisable to hand sign and date the edition. Using a Hologram system will give you added security. There are selected companies who supply these hologram sets and certificates. A set is comprised of 2 holograms per pint in the edition, one for the back of the print and the other for the certificate of authenticity. Each pair of holograms will have the same alphanumeric value and this can be registered with the company supplying them, enabling artists and buyers to certify that their prints are genuine.