Providing temporary use of on-line non-downloadable software for invoicing and processing electronic payments; electronic storage of cryptocurrency for others; Providing temporary use of on-line non-downloadable software for use in electronic storage of cryptocurrency for others; Providing temporary use of on-line non-downloadable software for purchasing, sending, receiving, managing, storing and spending cryptocurrency; Providing temporary use of on-line non-downloadable software for use in online banking services; Providing temporary use of on-line non-downloadable software for banking services using blockchain based financial protocols; Providing temporary use of on-line non-downloadable software for cryptocurrency transaction processing services; Providing temporary use of on-line non-downloadable software for use as a cryptocurrency wallet to allow users to store and transfer digital currency; Providing temporary use of on-line non-downloadable software for managing, reporting, and reconciling payment transactions made online and offline; providing temporary use of on-line non-downloadable computer software for allowing users to perform electronic business transactions via a global computer network