Key Takeaways Financial giant Citi tapped Coinbase to handle blockchain payments for corporate clients, with fiat settlement. Citi already processes roughly $1 billion daily through its tokenized-deposit platform. Citi and Coinbase have not disclosed a launch date, participating clients or supported stablecoins. A Wall Street Giant Hands Coinbase the Crypto Plumbing A corporate customer pays in stablecoins: Coinbase handles the blockchain transaction, Citi turns the incoming tokens into ordinary money, and the merchant gets paid through its bank. That’s the arrangement the Wall Street Journal (WSJ) disclosed on Monday, Sept. 28, in an exclusive report, bringing America’s largest cryptocurrency exchange …