These bars come with an assay card that not only guarantees weight and purity, but also makes it evident if the packaging has been tampered with. Added security is thrown in with the PAMP’s exclusive Veriscan® technology. This technology uses microscopic topography to identify products in the PAMP Suisse’s database. This topography is as unique as a human fingerprint and is scanned when each bar is manufactured. Gold bars with Veriscan® technology can also be scanned again in the future for verification purposes.