Downloadable computer software for use in electronically trading, storing, sending, receiving, accepting and transmitting digital currencies and non-fungible tokens; downloadable computer software for managing digital currency payment and exchange transactions; downloadable computer software for processing electronic payments and for transferring funds to and from others; downloadable authentication software for controlling access to and communications with computers and computer networks; magnetically encoded credit cards and magnetic ID cards for use in connection with payment for services; downloadable virtual goods, namely, computer programs featuring jewelry, postcards, posters, photographs, photograph albums, books, magazines, purses, bags, furniture, towels, blankets, clothing, headwear, footwear, toys, games, homes, buildings, vehicles, food, and drink for use online and in online virtual worlds; downloadable music files authenticated by non-fungible tokens (NFTs); downloadable image files authenticated by non-fungible tokens (NFTs); downloadable video files authenticated by non-fungible tokens (NFTs); downloadable software for blockchain-based inventory management; downloadable computer software for managing and verifying currency transactions on a blockchain; downloadable computer software for accessing, reading, and tracking information in the field of financial transactions, music, dance, entertainment, entertainment collectibles, musical bands, musical videos, movies, culture, and current events on a blockchain; downloadable software for virtual money; downloadable software for cryptocurrency; downloadable cryptographic keys for receiving and spending cryptocurrency; audio and video recordings featuring music, artistic performances, technology, sports, entertainment, culture, and current events; eyewear; sunglasses