Coinbase has rolled out a new lending facility that allows U. S. customers to borrow up to $100,000 in USD Coin against holdings in XRP, Dogecoin (DOGE), Cardano (ADA), and Litecoin (LTC). The move significantly expands Coinbase’s crypto-backed lending services beyond bitcoin and ether, bringing some of the most widely held altcoins into its borrowing ecosystem. …