1. Method of identifying of a product, comprising: providing a product having a cut surface with at least one optically recognizable surface feature as a result of cutting thereof; using a processor for implementing the steps of: obtaining at least one first images of an identification surface comprising at least a portion of the cut surface and containing the at least one optically-recognizable surface feature; storing the first images in a database; obtaining at least one second images of the identification surface at a later time; comparing the first images and the second images to identify the product.