42 Platform as a service (PaaS) and software as a service (SaaS) featuring software platforms for enabling users to electronically create, store, buy, sell, receive, send, trade, and process transactions for digital tokens, digital arts, crypto-collectibles, non-fungible tokens (NFTs), application tokens, and digital currencies; Platform as a service (PaaS) and software as a service (SaaS) featuring software platforms for enabling users to exchange digital tokens for data; Platform as a service (PaaS) and software as a service (SaaS) featuring software platforms for enabling users to exchange digital tokens for goods and services; Providing downloadable game software; Providing downloadable computer software for use as a digital token wallet; Providing downloadable electronic data files featuring non-fungible tokens to represent collectible items, goods or services; Providing downloadable computer software for modifying the appearance and enabling transmission of images, audio-visual and video content of digital tokens based on blockchain technologies; Providing downloadable computer software for downloading, receiving, sending, and storing software, data, links, video files, and image files from the internet; Providing online non-downloadable software for providing access to social media, digital arts, crypto-collectibles, non-fungible tokens (NFTs), application tokens, and digital currencies; Platform as a service (PaaS) and software as a service (SaaS) featuring software platforms for providing access to digital marketplaces, virtual environments and auctions; Platform as a service (PaaS) and software as a service (SaaS) featuring software platforms for managing and validating data, information and transactions using blockchain-based smart contracts; Platform as a service (PaaS) and software as a service (SaaS) featuring software platforms for providing information, communications, and authentications for digital tokens, digital arts, crypto-collectibles, non-fungible tokens (NFTs), application tokens, and digital currencies; Providing digital collectibles in the nature of downloadable multimedia files containing images, videos, audios, texts in the fields of art, domain names, music, photography, sports, trading cards, virtual world, gaming, membership, picture for proof, authenticated by non-fungible tokens (NFTs)