9 Computer and mobile downloadable software, namely, software for enabling users to securely create, trade, clear, settle and authenticate securities transactions; Computer software for providing a cryptographic application that creates a secure, electronic space for cryptographic communications and the encrypted transfer and review of files and documents, as well as access control functionality for the secure, electronic space; Downloadable software for use in verifying a chain of custody; software for enabling users to electronically create, exchange, store, send, receive, accept and transmit digital tokens based on the blockchain technology; computer software platform for providing cryptographic communications and the encrypted transfer and review of files and documents