On January 9, Eric Conner, a co-author of the Ethereum EIP-1559 proposal, disclosed that the Commodity Futures Trading Commission (CFTC) has issued a subpoena to Coinbase regarding the Polymarket case, requesting Coinbase to provide information related to certain customers. Coinbase stated in an email sent to customers: "You do not need to take any action, but Coinbase may need to send information related to your account to the Commodity Futures Trading Commission in response to the subpoena, unless Coinbase formally receives a motion to withdraw the subpoena or other legal documents preventing Coinbase from sharing such information before the end of business on January 15, 2025."