MintMark® Mobile

MintMark SI™. Before you buy, verify. You can now authenticate your Sunshine Minting (SMI) coins, rounds, and bullion bars using MintMark SI™ mobile technology.

MintMark SI™ gives collectors, investors, dealers, and precious metal owners a simple way to verify SMI products using a standard smartphone camera. Locate the MintMark SI™ circle in the center of your product, scan it with the app, and confirm authenticity in seconds.

Built in collaboration with Graphic Security Systems Corporation, an advanced authentication technology company with decades of experience developing hidden-image security features for governments and high-security applications worldwide.

Scan to Reveal “VALID” for Authentication Quickly confirm authenticity from your smartphone.

Anti-Counterfeit Protection & Hidden-Image Security

Helps protect against fake coins, rounds, and bullion bars.

Designed with GSSC technology that cannot be easily duplicated or reproduced.

No Special Equipment

Authenticate using a standard smartphone camera.

Supports eligible Sunshine Minting coins, rounds, and bullion bars.

Fast and Simple

Locate the MintMark SI™ circle, scan, and verify

Eligible Sunshine Minting Products Supported by MintMark SI™

Gold Products, Au

Gold Bars

1g Gold Bar 2g Gold Bar 2.5g Gold Bar 5g Gold Bar 10g Gold Bar 20g Gold Bar 100g Gold Bar 1/2 oz Gold Bar 1 oz Gold Bar 5 oz Gold Bar Gold Rounds

1/20 oz Gold Round 1/10 oz Gold Round 1/4 oz Gold Round 1/2 oz Gold Round 1 oz Gold Round

Silver Products, Ag

Silver Bars

1/2 oz Silver Bar 1 oz Silver Bar 5 oz Silver Bar 10 oz Silver Bar 1 Kilo Silver Bar 50 oz Silver Bar 100 oz Silver Bar Silver Rounds

1/2 oz Silver Round 1 oz Eagle Silver Round 1 oz Sunshine Silver Round 1 oz Liberty Silver Round 1 oz Buffalo Silver Round 2 oz Sunshine Silver Round 5 oz Silver Round 10 oz Silver Round