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Blockchain-based payment verification services; Cryptocurrency exchange services; Cryptocurrency exchange services featuring blockchain; Cryptocurrency trading services; Electronic transfer of virtual currencies; Financial brokerage services for cryptocurrency trading; Financial consultation in the field of cryptocurrency; Financial exchange of virtual currency; Financial services, namely, providing a virtual currency for use by members of an on-line community via a global computer network; Financial services, namely, providing electronic transfer of a virtual currency for use by members of an on-line community via a global computer network