Downloadable image files containing trading cards, artwork, memes, and sneakers authenticated by non-fungible tokens (NFTs); Downloadable software for creating, managing, exchanging, and authenticating non-fungible tokens, avatars, cryptocurrencies, and digital images and assets based on blockchain technology; Downloadable computer software for managing cryptocurrency transactions using blockchain technology; internet browser software; software for blocking ads in websites; browser extension software for automatically deleting cookies; browser extension software for implementing HTTPS on all websites