Abstract: The information surrounding the manufacturing of a product is called a manufacturing context. The manufacturing context of a product provides details about the source and quality of raw material together with the detail of manufacturing and quality assurance throughout the manufacturing process. A product identifier is a unique identifier generated from a manufacturing context to uniquely identify one or more products manufactured under the same condition. Information about a retailer and its environment is called a retailer context. A retailer identifier is a unique identifier that identifies a retailer context. A product's authenticity context is comprised of the authenticity of a product and the authenticity of a retailer. The production identifier and the retailer identifier are made available to consumers at the point of sale so that the authenticity context can be determined.