DTCC, a core Wall Street institution, has launched its tokenization service, with 20 institutions including JPMorgan Chase, Citi, and Morgan Stanley participating, aiming to bring $30 trillion in securities onto the blockchain. The service is already running on the Canton Network and DTCC's private Besu blockchain, initially supporting selected large-cap stocks from the Russell 1000 Index, ETFs, and U.S. Treasuries, with a market value of approximately $30 trillion.