Curve USD (CURV) is an upcoming over-collateralized stablecoin that is designed to provide users with a secure and stable store of value. It is similar to UST in that it is backed by a basket of other stablecoins, however, it is also designed to be more efficient and cost-effective than other stablecoins. To stake CURV, users will need to deposit their tokens into a smart contract, which will then be locked up for a predetermined period of time. During this time, users will receive a share of the rewards generated by the protocol. Staking CURV will also help to secure the network and ensure that transactions are processed quickly and securely.