9 Software; interfaces for computers; audio interfaces; data sets, recorded or downloadable; magnetic data media; optical data media; computer game software, recorded; computer software, recorded; computer software platforms, recorded or downloadable; personal digital assistants [PDAs]; computer software applications, downloadable; computer programs, recorded; computer screen saver software, recorded or downloadable; computer game software, downloadable; computer programs, downloadable; computer operating programs, recorded; data processing apparatus; downloadable image files; downloadable music files; computer software for virtual currency; computer hardware for electronic trading of currency; computer programs for electronic trading of currency; computer hardware and software for digital currencies; computer software for electronic trading of currency; computer software for electronic trading of virtual currency; downloadable software for spending and trading digital currency; downloadable computer software for virtual currency; downloadable computer software for digital currency; computer hardware for electronic trading of virtual currency; computer hardware and software for virtual currencies; computer programs for electronic trading of virtual currency; downloadable software for receiving and accessing digital currency; cryptocurrency hardware wallets; downloadable e-wallets; computer software for blockchain mobile applications and wallets; downloadable computer software for use as an e-wallet; downloadable computer software for use as a digital wallet; computer software for blockchain technology; computer software for cross blockchain transfers; computer software for interacting with blockchain platforms; computer software for blockchain data mining; computer software for blockchain technology and cryptocurrency; computer hardware and software for blockchain technology; computer software for aiding the development of blockchain-based applications; computer software for developing, building, and operating consumer blockchain applications; downloadable computer software for managing cryptocurrency transactions using blockchain technology; cryptocurrency exchange software; software for cryptocurrency exchange; computer software for cryptocurrency