defirisk.co
rubric v1.7.0

Bytecode similarity to audited upstream with behavior deviation

Usual (USD0 / bUSD0 / USUAL)'s assessment for RD-F-171 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

Usual is an original design with no meaningful upstream to compare against. Contracts use OZ standard library patterns (expected). No AI-copy risk pattern detectable. Private repo limits this assessment but the protocol's original architecture and 7-firm audit program would surface AI-copy bytecode deviations.

Sources #

  • Etherscan
    USD0 Implementation — EtherscanUSD0 impl — OZ standard pattern, original designretrieved 2026-05-17
  • Internal
    00-profile.md §5 fork lineageProfile §5 — original design confirmedretrieved 2026-05-17

Methodology #

Determine whether the bytecode has high structural similarity to an audited upstream but deviates in state-mutation ordering (AI-generated copy risk pattern).

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol usual factor RD-F-171 score green collected_at 2026-05-16 20:39:44