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What Exactly is USDD?
At its core, USDD is a decentralized stablecoin pegged 1:1 to the US Dollar. Unlike centralized stablecoins like USDT (Tether) or USDC (Circle)—which are managed by corporate entities and backed by traditional bank deposits—USDD lives entirely on the blockchain.
Over-Collateralization: To ensure the price stays at exactly $1.00, USDD maintains a collateralization ratio well above 100% (often exceeding 200%). If you hold 1 USDD, there is mathematically more than $1 worth of Bitcoin, TRX, and other stablecoins locked in a smart contract backing it up.
The TRON DAO Reserve (TDR): This is the decentralized "central bank" for USDD. The TDR manages the reserve assets, sets risk-free interest rates, and executes monetary policy transparently on the blockchain.
The Peg Stability Module (PSM): This is a specialized smart contract that allows users to swap USDD for other major stablecoins (like USDT or USDC) at a strict 1:1 ratio with zero slippage, ensuring the peg remains incredibly tight.