U.S. bank Citi is taking a decisive step into digital payments by joining forces with Coinbase to pilot stablecoin transactions. The partnership marks a turning point in Wall Street’s embrace of blockchain-based money, following the U.S. GENIUS Act's approval earlier this year. As the stablecoin market heads toward a projected $4 trillion valuation by 2030, Citi’s move positions it at the forefront of institutional adoption.