What is Dai (DAI)?

Deep Dive

1. Purpose & Value Proposition

DAI solves the problem of volatility in cryptocurrencies by creating a stable, decentralized digital dollar. Unlike stablecoins backed by bank-held fiat (e.g., USDC, USDT), DAI’s value is secured by a surplus of on-chain collateral, making it permissionless and transparent. Its primary value is providing a predictable store of value and medium of exchange within the decentralized finance (DeFi) ecosystem without a central point of control (CoinMarketCap).

2. Technology & Architecture

DAI is an ERC-20 token on Ethereum. It is created through the Maker Protocol (now part of the Sky Ecosystem), where users deposit approved assets like ETH into "Vaults." To mint DAI, they must maintain a collateral ratio typically over 150%, meaning they lock $150 worth of crypto to borrow $100 in DAI. This overcollateralization buffers against price swings. If the collateral value falls too close to the loan value, the system automatically liquidates it via smart contracts and decentralized oracles to protect the peg.

3. Governance & Evolution

The protocol is governed by a DAO. Holders of the governance token (SKY, which replaced MKR) vote on critical decisions like stability fees, accepted collateral types, and system upgrades. The ecosystem has evolved, rebranding to Sky Protocol and introducing USDS as a new stablecoin, but DAI remains the foundational, purely decentralized dollar. This structure ensures no single entity can freeze or seize user assets (KuCoin).

Conclusion

Fundamentally, DAI is a decentralized financial primitive that combines overcollateralization, smart contract automation, and community governance to create a stable currency. How will its role as a trust-minimized dollar evolve as the broader ecosystem increasingly integrates with traditional finance?