Fecha de publicación: -- Fuente: Wipo "digitalization" In embodiments of the present invention, methods are provided for maintaining a plurality of public addresses and a plurality of virtual representations and digital tokens of a plurality of items where each digital token is cryptographically linked to a respective instance of the item represented by the virtual representation. A request may be received to participate in a transaction for an item represented by a specific virtual representation and a transfer request received to transfer the specific digital token to a different user, where the transfer request includes a digital-token identifier that identifies the specific digital token and a public address of the different user, and a token validation and redemption process is completed.