Providing an online marketplace for buyers and sellers of blockchain-based non-fungible assets and non-fungible tokens (NFTs); operating an online marketplace featuring digital and physical collectibles and blockchain-based non-fungible assets and non-fungible tokens (NFTs); providing an online community and marketplace for utility token holders to vote on or govern a blockchain protocol; operating online community or marketplace for token holders to vote on or govern a blockchain protocol; providing an online non-fungible token (NFT) registry; operating an online non-fungible token (NFT) registry; business management; marketing, advertising and promotion services in the field of digital and physical collectible items; arranging, conducting and organizing augmented reality and virtual reality exhibitions for business, commercial, marketing, promotion and/or advertising purposes; providing a searchable online advertising website and informational guide featuring the goods and services of other vendors via the Internet in the field of digital and physical collectible items; providing online auction services via mobile devices; providing non-fungible token (NFT) tracking services via mobile devices; providing product purchasing information via an online comparison-shopping search engine for shopping facilitation; and providing market research data and statistics, namely, aggregating third party market value data for buyers and sellers