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 in online environments and online virtual worlds; downloadable music files authenticated by non-fungible tokens (NFTs); downloadable image files containing music, dance, musical entertainment, musical videos, Korean culture, style, fashion, jewelry, postcards, posters, photographs, photograph albums, books, magazines, purses, bags, furniture, towels, blankets, clothing, headwear, footwear, toys, games, homes, buildings, vehicles, food, and drink authenticated by non-fungible tokens (NFTs); downloadable video files relating to music, dance, musical entertainment, musical videos, Korean culture, style, fashion, jewelry, postcards, posters, photographs, photograph albums, books, magazines, purses, bags, furniture, towels, blankets, clothing, headwear, footwear, toys, games, homes, buildings, vehicles, food, and drink 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 use as a cryptocurrency wallet for virtual money and for use in managing, converting, tracking, issuing, collecting and trading virtual money; downloadable software for use as a cryptocurrency wallet for cryptocurrency and for use in managing, converting, tracking, issuing, collecting and trading cryptocurrency; downloadable software for generating and verifying cryptographic keys for receiving and spending cryptocurrency