cryptocurrency hardware wallets; cryptocurrency cold storage in the nature of cryptocurrency hardware wallets, namely, providing offline cryptocurrency wallets; downloadable computer software for use as a cryptocurrency wallet ; downloadable computer software for managing and verifying cryptocurrency transactions on a blockchain ; downloadable computer software for cryptographically signing cryptocurrency transactions; downloadable computer software for cryptographically signing messages or blockchain data; downloadable computer software for cryptographically signing blockchain asset transactions, with or without metadata; downloadable computer software for relaying cryptocurrency transaction information to a cryptocurrency wallet without any connection to the internet or blockchain network; downloadable computer software for relaying blockchain asset information to a cryptocurrency wallet without any connection to the internet or blockchain network; downloadable computer software for managing cryptocurrency transactions using blockchain technology; downloadable software for generating cryptographic keys for receiving and spending cryptocurrency

software as a service (SAAS) services featuring software for use as a cryptocurrency wallet; providing online non-downloadable computer software for use as a cryptocurrency "watch only" wallet; providing online non-downloadable computer software to generate cryptocurrency transaction information for offline signing; providing online non-downloadable computer software to generate blockchain asset transaction information for offline signing; providing a website featuring technology that enables users to access a cryptocurrency wallet; providing user authentication services using blockchain based software technology for cryptocurrency transactions; providing online non-downloadable software for generating, broadcasting and receiving cryptocurrency and blockchain assets