★ Oracle source = spot DEX pool (no TWAP)
Usual (USD0 / bUSD0 / USUAL)'s assessment for RD-F-053 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
No spot DEX pool oracle used. All collateral pricing goes through ClassicalOracle which uses Chainlink IAggregator-compatible interfaces (push-based feeds) or Hashnote custom NAV oracle. USD0 peg in SwapperEngine is hardcoded at $1 (not derived from a DEX pool). DaoCollateral ABI shows no Uniswap/Curve pool calls. TWAP exploitation vector does not apply.
Sources #
- EtherscanDaoCollateral Implementation — EtherscanDaoCollateral implementation ABI — no Uniswap/Curve pool interface calls visible; oracle interaction is via getPrice(address token)retrieved 2026-05-17
- ClassicalOracle | Usual Tech Docstech.usual.money ClassicalOracle: 'fetching the price of external tokens implementing chainlinks IAggregator Interface' — Chainlink push feeds, not DEX poolretrieved 2026-05-17
Methodology #
Determine whether the primary oracle for any asset/market reads spot price from a single DEX pool without a TWAP window or secondary source.
See the full factor methodology and distribution across all protocols →
rubric_version v1.7.0 protocol usual factor RD-F-053 score green collected_at 2026-05-16 20:39:44