Twenty firms signed up for the Depository Trust & Clearing Corporation's Tokenization Service at launch, including Morgan Stanley, J.P. Morgan, Citi, Bank of America, Fidelity, and Citadel Securities

Traditional assets like treasuries, funds, stocks and real estate brought onto blockchains as tradable tokens.

Moving stocks, bonds, and other securities onto blockchains as tokenized assets, and the debates over investor protection, trading hours, and settlement.