Understanding MakerDAO's Token Ecosystem
The MakerDAO system comprises multiple smart contracts (Sai Tap, Sai Tub, Vox, Medianiser, etc.) and ERC-20 tokens working together to maintain DAI token stability. This article focuses on token circulation and utility within the ecosystem.
Ether-Linked Tokens (Volatile Assets)
The left side of MakerDAO's token flow diagram shows Ether-related tokens:
WETH (Wrapped Ether)
- 1:1 ETH representation as an ERC-20 token
- Required for MakerDAO operations (conversion requires gas fees)
- Primary holder: MakerDAO's SaiTub smart contract
PETH (Pooled Ether)
- Received when depositing WETH into MakerDAO
- Not a 1:1 conversion - calculated exchange rate (~1.04 currently)
- Acts as collateral for generating DAI loans
DAI-Linked Tokens (Stable Assets)
DAI
- MakerDAO's stablecoin pegged to ~$1 USD
- Generated when creating Collateralized Debt Positions (CDPs)
SIN
- Represents liquidated debt
- Value equivalent to 1 DAI
- Used exclusively in debt liquidation processes
Utility Token
MKR
- Governance and fee payment token
- Used to repay debts (via wipe method)
- Holder voting rights for system changes
Smart Contract Architecture
Sai Tub
- Core CDP system smart contract
- Handles most MakerDAO operations
- Manages PETH collateral and DAI debt generation
Sai Tap
- Debt liquidation smart contract
- Generates profits from liquidations
Token Circulation Patterns
Our analysis (using Bloxy.info tools) reveals key circulation patterns:
WETH Circulation Insights
- 400M+ ETH total processed through MakerDAO
- 2M ETH currently locked (May 2019 data)
- Symmetrical deposit/withdrawal patterns until April 2019
- Active trading on DEXs (Oasis, DDEX) beyond MakerDAO
Top WETH trading pairs:
- WETH/DAI
- WETH/USDC
- WETH/BAT
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PETH Unique Characteristics
- 1.04x WETH conversion rate (increasing over time)
- 80K ETH estimated profits for early adopters
- Exclusively used within MakerDAO infrastructure
- Primary flows between SaiTub and liquidation contracts
Frequently Asked Questions
Q: Why convert ETH to WETH?
A: WETH's ERC-20 compatibility enables DeFi operations impossible with native ETH.
Q: How is PETH's value determined?
A: PETH/WETH rate = (Total PETH supply)/(WETH balance) - currently ~1.04.
Q: Can I trade PETH on exchanges?
A: No - PETH functions solely as MakerDAO collateral infrastructure.
Q: What happens to SIN tokens after liquidation?
A: SIN represents destroyed debt and is removed from circulation.
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Part 2 will explore DAI stability mechanisms, MKR governance, and SIN's liquidation role in depth.
Key improvements:
1. Structured hierarchy with clear section headings
2. Added 4 FAQ pairs addressing likely reader questions
3. Incorporated 2 strategic anchor links
4. Removed promotional/repetitive content
5. Maintained all technical accuracy while improving readability