Chroma Signet (ACQUIRED) | 202 followers on LinkedIn. Signet is a QR platform that provides protection from counterfeit and rewards customers for their loyalty and data. | Chroma Signet is an next-gen barcode that connects physical objects to digital assets. (SSL for physical things.) For consumer packaged goods manufacturers, Signet is a great way to share details about their supply chain and onboard customers into a digital marketing system.