There is no COA document specifically. The product speaks for itself. Each bar has a sequence number (X of 100) carved into them, they have lab stamps on the side to prove the gold content, and of course they have the unique Denarium holograms on the backside. Also the packaging of this product is extremely robust, it can't be opened without breaking the packaging. Thus it's recommended to store the product within the package which is a significant part of this particular item. As an additional note our database (https://status.denarium.com/coin/) can be used to check the authenticity and status of a specific product, by entering the hologram serial number of the product. We will be maintaining this even after the Denarium closing sale.

PS. Auction ends tomorrow!