How Does Rings Protocol Work?
Rings Protocol (now rebranded to Trevee) is a yield-bearing stablecoin protocol native to the Sonic blockchain. Users deposit stablecoins like USDC to mint scUSD, which maintains a 1:1 peg to USD. The protocol's key feature is that your deposited collateral does not sit idle — it is automatically deployed into DeFi yield strategies on Ethereum (via Veda BoringVaults) earning yield from protocols like Aave, Convex, and Morpho. This yield is then distributed to users who stake their scUSD to receive stkscUSD. The protocol also features a governance layer where users can lock staked tokens to earn bribes from other DeFi protocols competing for scUSD liquidity. Rings reached a peak TVL of $111M in February 2025 before contracting to approximately $54M. In November 2025, the protocol rebranded to Trevee and suffered a $14M loss from exposure to the Stream Finance fraud, which forced shutdown of its rehypothecation feature. Unlike traditional CDPs like MakerDAO, Rings does not use a liquidation engine — instead relying on 1:1 collateral backing. This simplicity removes liquidation cascades as a risk but means any collateral loss directly reduces scUSD backing. Key contracts are protected by a 3/5 multisig and a 24-hour timelock. Security audits on the underlying Veda BoringVault were conducted by Spearbit and 0xMacro.
TVL
$54M
Sector
CDP
Risk Grade
C-
Value Grade
B-
Core Mechanisms
Collateral-Backed Stablecoin
Yield-bearing meta-stablecoin: scUSD backed 1:1 by stablecoin collateral deployed in Veda BoringVaults on Ethereum; yield is distributed to stkscUSD stakers on Sonic
Not a traditional overcollateralized CDP — no liquidation engine; instead relies on 1:1 backing with yield-farming collateral deployed across Aave, Convex, Morpho
Cross-Chain Asset Bridge
NovelNative minting bridge: collateral deposited on either Ethereum or Sonic triggers cross-chain transfer; scUSD is minted and lives on Sonic while underlying assets reside on Ethereum in Veda vaults
Novel architecture for a stablecoin: peg integrity depends on cross-chain bridge liveness and finality guarantees between Sonic and Ethereum
Yield Aggregation Vault
Veda BoringVault: pluggable strategy vault on Ethereum that deploys collateral across blue-chip protocols (Aave, Convex, Morpho, Curve) and auto-compounds yield, then mints new scUSD once per epoch
Veda vault applies Merkle-proof-gated strategy execution and requires protocols to have TVL >$100M and 6-month track record before deployment
Vote-Escrowed Governance (ve)
Novelve(3,3) model adapted from Solidly/Thena: stakers lock stkscUSD to receive veNFTs granting gauge voting rights; voters earn bribes from competing DeFi protocols seeking scUSD liquidity allocation
Three-tier structure (scUSD → stkscUSD → veNFT) creates distinct yield and governance layers; ve model applied to a stablecoin collateral protocol rather than a DEX is a relatively novel application
Staking / Yield Distribution
stkscUSD vault: staking scUSD generates yield from Sonic ecosystem DeFi protocol rewards; Veda vault epoch yield is distributed pro-rata to stakers
Yield derives from both Ethereum mainnet Veda strategy returns and Sonic ecosystem protocol incentives
Gauge / Liquidity Incentive System
NovelveNFT-governed gauge: protocols bribe veNFT holders to direct scUSD liquidity to their pools; creates competitive marketplace for stablecoin liquidity allocation across Sonic
Gauge system incentivizes scUSD adoption across Sonic DeFi but creates mercenary liquidity dynamics where gauge votes follow bribe flows rather than protocol fundamentals
Multi-Asset Collateral
Accepts USDC, USDT, GHO, DAI, USDS (for scUSD) and ETH, stETH, weETH (for scETH); also scBTC backed by BTC derivatives; each asset class has dedicated Veda vault strategies
Multi-collateral expansion increases TVL potential but also diversifies smart contract surface across multiple asset contracts
How the Pieces Interact
Bridge liveness risk: if the Sonic ↔ Ethereum bridge halts or is compromised, scUSD collateral becomes inaccessible while scUSD continues to circulate on Sonic, creating a ghost-backed stablecoin with no redemption path
Strategy counterparty cascades: if a Veda vault strategy suffers a loss (e.g., Aave insolvency, Convex exploit), collateral backing for scUSD decreases below 1:1 without a liquidation engine to recapitalize, resulting in an undercollateralized stablecoin
Yield compression under rehypothecation: Trevee previously re-deployed staked scUSD into lending protocols for additional yield; the Stream Finance fraud ($14M loss) revealed that compounded yield strategies multiply counterparty exposure, forcing shutdown of this feature
Bribe-driven liquidity misallocation: veNFT holders optimizing for bribe income may direct scUSD to high-yield but low-quality protocols, concentrating systemic risk in fragile integrations and reducing peg support in the broader Sonic ecosystem
Epoch settlement delay: Veda vaults distribute yield by minting new scUSD once per epoch; if the bridge is slow or congested during epoch settlement, yield accrual lags behind stkscUSD staker expectations, creating redemption queuing pressure
What Could Go Wrong
- Cross-chain collateral architecture creates bridge dependency: all user collateral is held in Veda BoringVaults on Ethereum mainnet while scUSD circulates on Sonic, exposing users to bridge failure, relay manipulation, or cross-chain settlement delays
- Counterparty concentration risk demonstrated: $14M exposure to Stream Finance fraud (Nov 2025) forced shutdown of rehypothecation feature and triggered legal proceedings, revealing yield strategy fragility in adversarial market conditions
- 5-day redemption cooldown for scAssets limits exit liquidity during stress events, and peg stability during market dislocations relies on third-party DeFi integration depth rather than direct redemption arbitrage
- ve(3,3) governance incentive model concentrates voting power among bribe-motivated veNFT holders, creating potential misalignment between gauge allocations and protocol safety
Bridge Failure Triggers Ghost-Backed Stablecoin
TailTrigger: The Sonic ↔ Ethereum bridge used to relay collateral and yield settlements is exploited or halted for an extended period (days or longer)
- 1.Bridge exploit or governance-ordered halt — Collateral held in Veda vaults on Ethereum becomes inaccessible to scUSD redemption contracts on Sonic
- 2.Redemption requests via withdraw queue fail or freeze — 5-day cooldown turns into indefinite wait; scUSD holders cannot redeem for underlying collateral
- 3.scUSD secondary market price collapses as confidence in backing evaporates — Sonic DeFi protocols using scUSD as collateral face cascading liquidations; integrations unwind
- 4.ve(3,3) gauge vote bribes drop to zero; stkscUSD stakers mass unstake — Liquidity pools drain; scUSD loses all ecosystem utility; permanent debasement below $1
Risk Profile at a Glance
Overall: C- (53/100)
Lower score = safer