Abstract: A system, a method, and a device for authentication of a product includes one or more databases configured to store data of one or more products, and a user device communicatively coupled to the databases via a network. The user device includes at least one memory configured to store computer executable instructions, and at least one processor configured to execute the computer-executable instructions to receive, from an authenticator, product search data of the product, and to search the product in the databases based on the product search data. The product is listed by a user for authentication, and the product is authenticated by scanning an authentication tag attached to the product. The authentication tag is pre-programmed and becomes inactive when detached from the product. There is also a dual-purpose device for authenticating a commercial product and associating a brand with the authentication of the product.

Abstract: In various example embodiments, a system and method for managing products at a physical marketplace is described. A method includes receiving an image and a category of a product for sale by a merchant at a physical marketplace, including the image in a list of images for the category, providing the list of images to customers of the physical marketplace, retrieving additional information regarding the product in response to a request by one of the customers, and generating a listing for the product using the image, the category, and the additional information received from the merchant.