Recorded and downloadable media featuring music files authenticated by non-fungible tokens (NFTs); Recorded and downloadable media featuring audio and video recordings featuring children's education, entertainment and entertainment of general interest to children, parents, and families authenticated by non-fungible tokens (NFTs); Recorded and downloadable media featuring image files of clothing, footwear, headwear, jewelry, hair accessories, shoe accessories, and clothing accessories for use online and in virtual worlds, authenticated by non-fungible tokens (NFTs); Downloadable computer software that enables individuals, groups, companies, and brands to create and maintain an online presence and interact with online communities for marketing purposes; Downloadable computer software for integrating electronic data with real world environments for the purposes of entertainment, education, gaming, communicating, and social networking; Downloadable computer software for use in electronically trading, storing, sending, receiving, accepting and transmitting digital tokens; Downloadable computer software for use in electronically trading, storing, sending, receiving, accepting and transmitting digital currency, and managing digital currency payment and exchange transactions