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Entrepreneur Gideon Nweze, founder of a blockchain start-up for managing digital currencies, uses the massage chair at Node, a blockchain members club in San Francisco, Calif., on August 9, 2018. Node is a member's club for the blockchain and crypto-currency community and the club functions as a community gathering space and co-working office.

Entrepreneur Gideon Nweze, founder of a blockchain start-up for managing digital currencies, uses the massage chair at Node, a blockchain members club in San Francisco, Calif., on August 9, 2018. Node is a member's club for the blockchain and crypto-currency community and the club functions as a community gathering space and co-working office.