Marcus Bacchi-Howard will be the London-based prime broker's director of institutional sales.
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Smart contracts could arm musicians against labels, he says.
The Sharia-compliant currency means Indonesia's majority Islamic population can transact on a debt- and interest-free platform.
The long-time Wall Street bear will advise xbullion as they shop the stablecoin around to U.S.-based exchanges.
It will be among the largest blockchain-based REITs when launched.