Crypto exchange Coinbase has lost a Supreme Court case over its Dogecoin sweepstakes. In Coinbase, Inc. v. Suski, consumers claimed they were duped into paying $100 or more to enter a sweepstakes in June 2021 for a chance to win prizes of up to $1.2 million in the cryptocurrency Dogecoin. In a unanimous ruling on Thursday, Justice Ketanji Brown Jackson stated that the court, not an arbitrator, should decide whether the dispute belongs in arbitration.