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EarnUSDT is SuperEarn’s yield-bearing USDT share position on Kaia.
Each EarnUSDT represents a share of the SuperEarn stablecoin portfolio, which is aggregated in the Super Vault and deployed across Kaia-native and multichain strategies. From a user or integrator’s perspective, EarnUSDT represents shares that naturally accrue value over time.

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Overview

When a user deposits Kaia USDT through the SuperEarn app (via SuperEarnRouter):
  • Funds enter the Cooldown Vault (not directly callable by users), which enforces withdrawal cooldowns and loss limits.
  • In return, the user receives EarnUSDT shares that track their pro‑rata share of the overall SuperEarn portfolio.
  • Behind the scenes, this portfolio is managed by the Super Vault and its connected cross‑chain vaults; users see a single share balance and a single yield stream.
You can think of EarnUSDT as one share position that bundles many strategies: lending, RWA, and other risk‑managed positions, without users needing to handle any of those integrations directly.

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Value Accrual Model

EarnUSDT uses a price‑per‑share model instead of rebasing balances:
  • Your EarnUSDT share balance stays constant in your wallet.
  • As the underlying portfolio earns yield, the USDT value of each EarnUSDT increases.
  • This is reflected in the share price (vault assets ÷ total shares), which is determined by the SuperEarn vault stack.
On deposit:
  • The user receives EarnUSDT based on the current exchange rate.
  • Example: deposit 1,000 USDT → receive ~1,000 EarnUSDT (exact amount depends on the current share price).
Over time:
  • If the portfolio earns yield, 1 EarnUSDT may later be redeemable for, say, 1.03 USDT, subject to protocol policies and loss limits.
This model makes EarnUSDT:
  • Easy to integrate through the documented Super Vault share flow,
  • Easy to account for (no rebasing), and
  • Naturally composable with other DeFi protocols.

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Lifecycle: Mint → Use → Redeem

Mint
  • Deposit Kaia USDT via the SuperEarn interface or by integrating with the protocol.
  • The protocol mints EarnUSDT shares to the depositor at the current price‑per‑share.
Use
  • Hold EarnUSDT shares to accrue yield.
  • Use EarnUSDT shares in compatible DeFi integrations when those integrations explicitly support the Super Vault share model.
  • Track your position: most portfolio and wallet UIs can treat EarnUSDT like “interest‑bearing USDT”.
Redeem
  • To exit, users return EarnUSDT through the SuperEarn withdrawal flow via SuperEarnRouter (no direct user calls to CooldownVault).
  • EarnUSDT shares are burned, and the user receives Kaia USDT based on the latest share price.
  • Redemptions are subject to protocol‑level rules:
    • cooldown periods,
    • liquidity management, and
    • loss‑limiting / risk controls in the vault stack.
For the detailed mechanics of how the vaults source and manage liquidity for redemptions, see the Super Vault and How SuperEarn Works pages.

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Integrations

EarnUSDT is designed to be:
  • Composable – compatible with integrations that support the Super Vault share flow.
  • Portfolio‑backed – each share represents a claim on a diversified, risk‑managed stablecoin portfolio.
  • Chain‑local – on Kaia, it behaves like a normal Kaia‑native asset.
For exact contract addresses and integration examples, see the Integrate EarnUSDT docs in the Developers section.

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Risk Considerations

Holding or integrating EarnUSDT exposes users to the risks of the SuperEarn architecture and its underlying strategies, including:
  • Smart contract risk in SuperEarn and integrated DeFi/RWA protocols
  • Counterparty and credit risk where RWAs or off‑chain components are involved
  • Liquidity and slippage risk during large redemptions or market stress
  • Operational and messaging risk around bridging and cross‑chain execution
External protocols that integrate EarnUSDT are encouraged to surface these points in their own documentation and user interfaces.