Coinbase has placed PayPal’s new stablecoin on its listing roadmap, meaning the exchange’s users could soon trade the digital asset. The stablecoin, called PayPal USD (PYUSD), aims to maintain a 1:1 peg with the US dollar and is built on Ethereum (ETH). PayPal unveiled the asset earlier this month and said it is “backed by secure and highly liquid assets.” The payment giant’s customers can buy and sell PYUSD through the PayPal app and website and convert it to other crypto assets like Bitcoin (BTC). The blockchain-focused firm Paxos Trust…