9 Downloadable software for software development; Downloadable software development tools, namely, software development kits (SDKs) and application programming interface (API) software; Downloadable software for developing and running web3 decentralized applications (dApps); Downloadable software for developing and running software for user login, identification, authentication, and verification and for single sign-on for web3; Downloadable software for developing and running widgets for user login, identification, authentication, and verification; Downloadable software and mobile applications for user login, identification, authentication, and verification, and for single sign-on for web3; Downloadable software for developing and running software for cryptocurrency wallet creation and management, for blockchain-based financial transactions, and for use of a cryptocurrency wallet to purchase cryptocurrency, blockchain-based property, web3 media, crypto collectibles, and digital art and content authenticated by NFTs; Downloadable software for developing and running widgets for cryptocurrency wallets; Downloadable software and mobile applications for cryptocurrency wallet creation and management and for blockchain-based financial transactions including multi-chain and cross-dApp support; Downloadable software and mobile applications for using a cryptocurrency wallet to purchase cryptocurrency, blockchain-based property, web3 media, crypto collectibles, and digital art and content authenticated by NFTs and for managing and verifying cryptocurrency transactions using blockchain technology