The example embodiments herein relate to the field of electronic registration (ER) of purchased products and, more particularly, to an improved electronic registration system which enables online buyers and sellers (e.g. those participating in online auctions) to take advantage of the benefits associated with ER systems. The ER techniques enable buyers to determine whether the product for sale, for example, has been purchased through authorized channels, was stolen, is covered under a warranty, etc. Such techniques may be used with existing brick-and-mortar stores as well as online stores. Value may be added for buyers, sellers, auction houses, manufacturers, and/or contract service partners.