Hey guys, this is a big step forward for my art. The pieces will now have certificates not only timestamped on the Bitcoin blockchain but also combined with the artwork itself. If you'd like, I can place a hologram on the front. It has a QR code, so it could work, but traditionally, it's placed on the back. I’m thinking the lower-left corner on the front would be fine, though.
It took me some time to make this decision, but with the help of Bitcointalk community member @Owlcatz, I believe it's the right choice. Thank you!