Oracle price deviation >X% from secondary
crvUSD (Curve Stablecoin)'s assessment for RD-F-099 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
Oracle price deviation signal (|primary - secondary| / primary > 1% sustained ≥4 blocks). crvUSD uses AggregatorStablePrice v2 (0x18672b1b0c623a30089A280Ed9256379fb0E4E62) as primary crvUSD price oracle. Current crvUSD price on 2026-05-16: CoinGecko $0.9996, CoinMarketCap $0.9998, MEXC $0.9996 — 24h range $0.9990-$1.001. Delta between primary and secondary sources < 0.05%. Well within 1% threshold. Chainlink ETH/USD (0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419) and BTC/USD (0xF4030086522a5bEEa4988F8cA5B36dbC97BeE88c) feeds show normal heartbeat cadence. Signal would NOT fire today. The June 2024 upward depeg (crvUSD to $1.03+) would have fired this signal — current posture is stable. [T-09 v1 phase-2 signal]
Sources #
- URLCoinGecko crvUSD priceCoinGecko crvUSD price: $0.9996 as of 2026-05-16; 24h range $0.9990-$1.001retrieved 2026-05-16
- LlamaRisk crvUSD depeg incident report June 2024LlamaRisk incident report June 2024: crvUSD depegged to >$1.03 during liquidation cascade — reference for signal relevanceretrieved 2026-05-16
- AggregatorStablePrice v2 EtherscanAggregatorStablePrice v2 at 0x18672b1b0c623a30089A280Ed9256379fb0E4E62 — Curve internal crvUSD price aggregatorretrieved 2026-05-16
Methodology #
Detect whether the primary oracle's reported price deviates >X% from the best available secondary source (another feed or venue).
See the full factor methodology and distribution across all protocols →