To earn interest on TerraClassicUSD (USTC) holdings, you can follow these steps:1. Look for crypto platforms offering staking or savings accounts for USTC. These could be centralized exchanges (CEXs), DEXs, DeFi platforms, or other crypto financial services.2. Compare the Annual Percentage Yield (APY), platform reliability, and other terms like lock-up periods and fees.3. Sign up on your chosen platform and complete any necessary verification processes.4. Buy USTC on KuCoin and transfer it to your wallet. Connect your wallet to the platform. 5. Follow the platform's process to stake or deposit your USTC into a savings account to start earning interest.6. Regularly check your earnings and adjust your strategy as needed.