Technological consulting in the field of cryptocurrency; Authenticating coins; File sharing services, namely, providing a website featuring technology enabling users to upload and download electronic files; Planning, design and management of information technology systems; Providing a secure electronic online system featuring technology which allows vendors to submit electronic invoices to sales representative agencies for importing and processing of electronic invoices to save time and improve accuracy; Providing a web site featuring technology that enables internet users to create, bookmark, annotate, and publicly share data; Providing a web site featuring technology that enables internet users to submit comments of personal recognition; Providing a web site featuring technology that enables users to create a chronological schedule of events; Providing a website featuring technology that enables subscribers to transfer files to and from a file transfer protocol server; Providing a website featuring technology that enables users to use a blockchain to enter into contracts and smart contracts, buy, sell and trade cryptocurrency, and buy, sell and pay for goods and services using cryptocurrency and currency; Providing a website that gives computer users the ability to use a blockchain to enter into contracts and smart contracts, buy, sell and trade cryptocurrency, and buy, sell and pay for goods and services using cryptocurrency and currency; Providing an interactive website featuring technology that allows users to use a blockchain to enter into contracts and smart contracts, buy, sell and trade cryptocurrency, and buy, sell and pay for goods and services using cryptocurrency and currency; Providing an online non-downloadable Internet-based system application featuring technology enabling users to use a blockchain to enter into contracts and smart contracts, buy, sell and trade cryptocurrency, and buy, sell and pay for goods and services using cryptocurrency and currency