Coinbase operates an online platform for users to buy and sell digital assets. When creating an account, Coinbase users must agree to Coinbase's User Agreement, which includes an arbitration provision. Plaintiff Abraham Bielski, a Coinbase user, filed a putative class action against Coinbase in the Northern District of California, alleging that Coinbase failed to replace funds fraudulently taken from users' accounts. The district court denied Coinbase's motion to compel arbitration, and Coinbase appealed under Section 16(a). Both the district court and the Ninth Circuit refused to stay the case during the appeal.