This is a Solid Gold Prunity Card

A gold-backed cryptocurrency is a derivative digital asset whose value is supposedly underwritten by the equivalent price in gold. ... The biggest advantage that digital versions of gold hold over their physical counterparts is that they can be divided into any small unit or amount and transferred to another party.

Did you know? A Gold (Au) atom has 79 protons and 79 electrons. A typical gold atom has 118 neutrons, though there are 18 other radioisotopes discovered so far.