35 Advertising services, namely, promoting the goods and services of others; development of marketing strategies and concepts for others; provision of an online marketplace for buyers and sellers of goods and services; providing office functions in the nature of filing documents, searching for data in computer files for others in the field of blockchain and cryptocurrency consultancy; secretarial services; arranging newspaper subscriptions for others; compilation of statistics; rental of office machinery; management and compilation of computerized databases; telephone answering for unavailable subscribers; business management; business administration; secretarial and clerical services; auctioneering; retail, wholesale, and online store services and mail order services featuring cameras, photographic cameras, televisions, car video recorders, personal video recorders (PVRs), video cassette recorders, video tape recorders, CD players and audio recorders and DVD players and recorders, mp3 players, computers, desktop computers, tablet computers, wearable activity trackers, microphones, loudspeakers, earphones, cell phones, protective covers for cell phones, digital telephones, internet telephones, portable telephones, telephone sets, telephones, video telephones, VoIP telephones, wireless telephones, computer printers for printing documents, 3d scanners, airport X-ray security scanners, bar code scanners, biometric fingerprint scanners, biometric hand scanners, computer scanners, digital input and output scanners, image scanners, laser scanners for industrial inspection, optical scanners, photocopiers, blank magnetic discs, blank magnetic tapes for tape recorders, magnetic labels, magnetically encoded identification bracelets, blank optical disks, optical disc drives, downloadable computer software, namely, cryptocurrency blockchain software for peer-to-peer sharing of financial data, downloadable computer software, namely, software for facilitating commercial transactions utilizing cryptocurrency tokens, computer user manuals in the form of downloadable electronic publications in the field of cryptocurrency, downloadable electronic publications in the nature of magazines in the field of cryptocurrency, downloadable electronic legal publications in the nature of magazines, downloadable electronic medical publications in the nature of magazines, magnetically encoded blank bank cards for issuance by financial institutions, magnetically encoded gift cards, magnetically encoded hotel room key cards, magnetically encoded phone cards, pre-recorded motion picture films about cryptocurrency, downloadable video recordings featuring music, pre-recorded music video-tapes, pre-recorded DVDs featuring music, automatic time switches