$USDC USDC is a compliant stablecoin jointly launched by Circle and Coinbase, pegged 1:1 to the US dollar and fully backed by US dollar assets held in custody by regulated financial institutions. Compared to USDT, USDC has advantages in transparency and audit compliance, making it widely used in institutional payments, DeFi protocols, and cross-border settlements. Especially in the context of the United States promoting stablecoin legislation, USDC is expected to become the 'official preferred' digital version of the US dollar. Although its market share once declined, Circle continues to expand its collaborative ecosystem with Visa, Solana, and others, focusing on cross-border payments and CBDC-compatible scenarios. Whether USDC can become a core player in global digital payments in the future is worth ongoing attention.