bSunDAI V9 — Base Chain CDP

Oracle Status — Hybrid Chainlink + V3 TWAP

Committed Price

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Used for mint / withdraw safety

Chainlink Live

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Aave oracle

V3 TWAP (30-min)

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3-pool WETH/USDC median

Source / Divergence

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Confirmation State

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Warning Track

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Your Vault

Collateral (ETH)

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Debt (bSunDAI)

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Collateral Value

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bSunDAI Balance

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Mintable

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Repay to Safe

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Collateral Ratio —

110% liq150% safe175% target

Deposit native ETH and automatically mint bSunDAI at a safe 155% collateral ratio — in one click.

Enter ETH amount to preview

ETH Amount

ETH

You receive: ~0 bSunDAI · CR: 155%

Deposit native ETH

ETH

— or deposit WETH —

Deposit WETH (requires approval)

WETH

Mint bSunDAI

bSunDAI

After mint CR: —

Repaying bSunDAI requires a one-time approval — click Repay and approve in MetaMask first, then confirm again to repay.

Repay bSunDAI

bSunDAI

bSunDAI balance: —

Withdraw ETH

ETH

Stability Pool — earn yield

Deposit bSunDAI to help absorb liquidations atomically — no vault of your own required. You earn a continuous share of the 0.5% stability fee (whether or not anyone gets liquidated), plus a share of liquidation bonuses while your deposit is in the pool.

Your Pool Deposit

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Your Claimable Gain (ETH)

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Total Pool Deposits

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Total Pool Collateral

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Deposit bSunDAI into the Stability Pool

bSunDAI

Wallet balance: — · Requires one-time approval

Withdraw from the Stability Pool

bSunDAI

Your compounded deposit: — · Any pending gain is claimed automatically

Claim your accumulated ETH collateral gain without depositing or withdrawing any bSunDAI. Your principal stays exactly where it is.

Claimable now: —

Official Contract Addresses · Base

bSunDAI Token 0x0594…2BF4c ↗ Vault 0x974c…E0913 ↗ Oracle 0xdDbf…dF9e ↗

Always verify these addresses match before connecting or approving — click through to BaseScan to confirm.

System State

Total Collateral —

Total Debt —

System Health —

Surplus Buffer —

Bad Debt —

System Equity —

Stability Pool Deposits —

Stability Pool Collateral —

Debt Ceiling —

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Protocol Tools

Clear zombie vault (repay pro-rata, receive collateral pro-rata — no bonus, since the vault is underwater):

Settle bad debt (burn your bSunDAI):

Vault Health Zones

▲ 150%+ — Safe. Can mint & withdraw freely.

◆ 110–150% — Cannot mint. Add collateral or repay. Redeemable.

▼ <110% — Liquidatable. Bonus decays 10% → 2% over 3 hours. First mover wins.

All vaults are redeemable against at oracle price — no CR filter. Target 175%+ to absorb ETH volatility.

How bSunDAI Works

1. What is bSunDAI?

bSunDAI is an ETH-collateralized stable asset on Base Chain. Lock ETH, mint bSunDAI (targeting $1 USD). No admin, no governance, fully autonomous once deployed.

2. Deposit ETH → Mint bSunDAI

Deposit native ETH (auto-wraps to WETH internally). Minimum 150% collateral ratio to mint. Auto mode mints at 155% in one transaction.

3. Repay requires approval

Unlike pSunDAI, bSunDAI repayment requires a standard ERC20 approval first. Click Repay and approve in MetaMask, then confirm again to complete the repay.

4. Oracle: Hybrid Chainlink + V3 TWAP

Committed Price: Steps conservatively — accepts small moves (≤2% down, ≤5% up) instantly. Larger moves require confirmation (4h down, 30min up). Used for minting and withdrawal safety.

Chainlink Warning Track: If Chainlink stays 3%+ below committed price for 30 continuous minutes, liquidations switch to live Chainlink — hard-clamped to within 15% of committed price, so a bad feed read or extreme volatility can never push liquidation pricing arbitrarily far. Flash crashes recover in minutes; real crashes don't.

5. Liquidations (Inverted Dutch Auction)

Vaults below 110% CR can be liquidated. Bonus starts at 10% and decays to 2% over 3 hours. First mover wins — act immediately for the highest bonus. Requires bSunDAI approval before liquidating. Partial liquidations must repay at least 20% of the vault's debt. The Stability Pool can also absorb eligible vaults atomically — see below.

6. Stability Pool

Deposit bSunDAI into the Stability Pool (no vault required) to help absorb liquidations atomically. Anyone can then call liquidateFromStabilityPool(user) permissionlessly on an eligible vault — the caller gets a small flat tip (0.5%) as gas compensation, and the rest of the liquidation bonus (ETH) goes to Stability Pool depositors pro-rata, alongside a continuous share of the 0.5% stability fee minted directly as yield. Withdraw anytime; claim pending ETH gains without withdrawing via the Claim tab.

7. Redemptions

Any holder can redeem bSunDAI for $1 of ETH from any vault at oracle price. 0.5% fee stays with the vault owner. This enforces the $1 floor — if bSunDAI ever trades below $1, arbitrageurs buy and redeem. See Vault Dashboard for the Redeem tab.

8. Emergency Functions

Emergency Unlock: Zero debt + last deposit older than 30 days → withdraw regardless of oracle.

Emergency Repay / Withdraw: If oracle is catastrophically failed for 7+ days.

9. Protocol Tools (anyone can call)

Reconcile: Net surplus buffer against bad debt on-chain.

Refresh Oracle: Advance oracle state machine.

Clear Bad Debt: Voluntarily unwind an underwater vault — repay bSunDAI pro-rata and receive collateral pro-rata (no bonus, since the vault is underwater by definition, a caller can never profit — this is a loss-taking cleanup action).

Settle Debt: Burn your bSunDAI to cancel accumulated bad debt.