The first cryptocurrency matter to come up at the high court isn’t directly about digital assets but is a dispute over how courts should handle scuffles over arbitration. Coinbase (COIN) argued at the U.S. Supreme Court on Tuesday that its disputes over forcing customers into arbitration should freeze the courts while the arguments play out – a moment that breaks legal ground for crypto with the industry’s first high court appearance. The case itself has little direct effect on the business o...