[Solstice Selects Ondo's OUSG as Collateral for Its USX Stablecoin] BlockBeats News, December 17, Solana synthetic stablecoin protocol Solstice has chosen Ondo's OUSG as collateral for its USX stablecoin. OUSG holds a diversified institutional tokenized U.S. Treasury fund portfolio from the world's most trusted asset management companies, including BlackRock, Fidelity, Franklin Templeton, State Street, WisdomTree, and Wellington Management Company.