What is Dai (DAI)?

Deep Dive

1. Purpose & Value Proposition

DAI was created to provide a stable, decentralized digital dollar. Unlike centralized stablecoins (e.g., USDT, USDC), no single entity controls DAI or can freeze user funds. This makes it a censorship-resistant base currency for decentralized finance (DeFi), enabling lending, trading, and saving without traditional intermediaries.

2. Technology & Stability Mechanism

DAI is an ERC-20 token on Ethereum. Its $1 peg is maintained through overcollateralization. To mint DAI, a user must deposit approved crypto assets into a smart contract "vault" at a value higher than the DAI they wish to borrow (e.g., $150 in ETH to mint $100 DAI). This buffer protects the system; if the collateral's value falls too close to the debt, it is automatically liquidated to keep DAI fully backed.

3. Governance & Evolution

The protocol is managed by a decentralized autonomous organization (DAO). Governance token holders vote on critical decisions, including collateral types, stability fees, and system upgrades. The ecosystem has evolved, rebranding to Sky Protocol and introducing USDS, but DAI remains a foundational, permissionless stablecoin within it.

Conclusion

DAI is fundamentally a decentralized, algorithmically managed stablecoin that uses overcollateralized crypto assets to provide a stable unit of account for the on-chain economy. How will its role evolve as the broader stablecoin landscape faces increasing regulatory scrutiny?