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Downloadable computer application software for mobile devices, namely, a data management platform secured by blockchain whereby users opt in to sell their first-party data to data purchasers, namely, advertisers, brands, market researchers, banks, and data management platforms

Online trading services, namely, operating online marketplace via downloadable computer application software secured by blockchain for mobile devices; online trading services in which seller opts in to sell their first-party data to data purchasers, namely, advertisers, brands, market researchers, banks and data management platforms via downloadable computer application software for mobile devices, namely, a data management platform secured by blockchain