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Authentication of branded products and collectibles, namely, works of art, electronics, watches, jewelry, apparel, footwear, headwear, bags, collectible coins, trading cards, publications, video games, toys, land vehicles, and watercraft; providing an authentication service for branded products and collectibles, namely, works of art, electronics, watches, jewelry, apparel, footwear, headwear, bags, collectible coins, trading cards, publications, video games, toys, land vehicles, and watercraft that may be traded through blockchain-based tokens, non-fungible tokens used with blockchain technology, and non-fungible tokens used with blockchain technology to represent a collectible item; providing on-line non-downloadable computer programs and computer software for electronic transfer of digital tokens; providing on-line non-downloadable computer software for use as a digital token wallet; providing on-line non-downloadable computer software for enabling users to electronically create, exchange, store, send, receive, accept, and transmit digital tokens based on the blockchain technology; providing on-line non-downloadable computer software for enabling users to exchange digital tokens for data; providing online non-downloadable computer software for creating digital tokens using blockchain technology to facilitate the transfer of data between users, to allow users to post digital content, and to allow users to view digital content