35 Advertising, marketing and public relations services; organization of exhibitions and trade fairs for commercial and advertising purposes; development of advertising concepts; providing an on-line marketplace for buyers and sellers of goods and services; providing office functions; secretarial services; arranging newspaper subscriptions for others; compilation of statistics; rental of office machines; systemization of information into computer databases; telephone answering for unavailable subscribers; business management, business administration, and business consultancy; book-keeping and accounting services related thereto; personnel recruitment; personnel placement; personnel selection; employment agencies; import-export agencies; temporary personnel placement services; billing; advisory services relating to tax preparation; auctioneering; the bringing together, for the benefit of others, of a variety of goods, namely, computer application software for blockchain-based platforms, software platforms for distributed applications and software using a consensus engine incorporating blockchain technology for securing data with cryptographic information, computer software platforms for developing and building of distributed software applications and distributed computing platforms, computer software platforms for blockchains, software for providing an electronic financial platform that facilitates the transaction of payments and financial transactions over a computer network, apparatus for recording, transmission or reproduction of sound and images, cameras, photographic cameras, television apparatus, videos, CD-DVD recorders and players, mp3 players, computers, desktop-tablet computers, wearable technological devices in the nature of smart watches, wrist bands, and head-mounted devices, microphones, loudspeakers, earphones, devices for communication and reproduction purposes and computer peripheral devices, mobile phones and covers thereof, fixed telephones, telephone exchanges, computer printers, scanners, photocopiers, magnetic and optic data carriers, and computer programs and software recorded thereto, electronic publications downloadable via computer networks and recordable in magnetic and optic media, magnetic and optic card readers, exposed cinema films, TV series and music video clips recorded in magnetic, optic and electronic media, ticket dispensers, and automatic teller machines (ATM), enabling customers to conveniently view and purchase these goods, such services provided via retail stores, wholesale outlets, by means of electronic media and through mail order catalogs