Anchor

The Anchor Protocol is a groundbreaking decentralized finance (DeFi) innovation designed to solve the inherent lack of yield in traditional stablecoins. It introduces Anchor USD, an over-collateralized stablecoin pegged 1:1 to the US dollar. Users can mint Anchor USD by depositing exogenous collateral (specifically ETH or stETH) into Collateralized Debt Position (CDP) vaults.

The protocol utilizes a multi-layered stability mechanism. Directly, it relies on over-collateralization, liquidations, and arbitrage/redemption opportunities to create a hard peg. Indirectly, it uses a soft peg mechanism where parity functions as a Schelling point. Instead of just holding a static asset, stablecoin holders passively earn regular income. The protocol takes the underlying deposited ETH, converts it to stETH, and stakes it via Liquid Staking Derivative (LSD) protocols like Lido Finance to earn PoS rewards. These staking rewards are transparently distributed to Anchor USD holders through an automated rebasing mechanism without requiring additional user actions.

The Anchor Protocol is built natively on the Ethereum blockchain, using advanced smart contracts written in Solidity to handle core operations like minting, burning, and over-collateralization. The protocol architecture is centered around CDP vaults, which manage collateral deposits and calculate the minimum collateral rate of 120% under normal operations.

To optimize capital efficiency and passive yield generation, any deposited ETH is automatically converted to stETH and pooled in Liquid Staking Derivative (LSD) strategies. The rewards generated from Ethereum's proof-of-stake (PoS) mechanism are dynamically funneled back to stablecoin holders. This is executed via an automated rebasing mechanism that adjusts individual token shares while keeping the total supply consistent.

For security and price stability, we integrated decentralized oracles to feed real-time pricing data for peg maintenance and liquidation calculations. System health is preserved through a dual-incentive design:

• Liquidators can activate automated liquidation features to arbitrage under-collateralized debt for a 9% to 10% reward.
• Keepers run programs to monitor system viability and trigger those liquidations in exchange for a 1% asset fee.
• To liquidate rebase vault surplus assets efficiently, a Dutch Auction mechanism is deployed to allow redeemers to purchase accrued yield assets using Anchor USD.