So I imagine.
Photo credit: Dana Barak
One side will bear the imprint of the Hechsher (e.g., Badatz Eidah Hacharedis) re-assuming Beis Din’s currently shirked obligation of ensuring accurate weights and measures, per Shulchan Aruch C.M. 231.
The other side will bear the logo of a private minting and warehousing company employing third-party auditors, of course.
For the halachic obligation of reinstating the gold standard, see here.