Computer software design, development and consultancy; software as a service (SaaS) featuring software for recording and exchanging financial and non-financial data and information to a cryptographic ledger; software as a service (SaaS) featuring software for designing, developing, and maintaining a decentralized data-stream library that allows users to share real-time information feeds; development of blockchain computer platforms; design and development of decentralised data-stream library application software; rental and maintenance of computer software for Internet access; rental and maintenance of computer software for data processing; rental and maintenance of computer software for peer-to-peer communication services; rental and maintenance of computer software for providing peer-to-peer payment services online; providing temporary use of online non-downloadable computer software that allows users to share real time information feeds; software as a service, namely, design, development, and maintenance of a decentralised data-stream library that allows users to share real-time information feeds; blockchain consultancy; advisory and consultancy services relating to computer software design, cryptographic ledgers, decentralized data-stream libraries, real-time information feeds, blockchain computer platforms, peer-to-peer communication services, and peer-to-peer payment services