Audit firm tier

Across Protocol's assessment for RD-F-005 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

OpenZeppelin is a Tier-1 firm (listed explicitly in taxonomy: OpenZeppelin).

Sources #

URL
https://www.openzeppelin.com/customer-stories/acrossretrieved 2026-04-28

Methodology #

Classify each auditing firm into: Tier-1 (Trail of Bits / OpenZeppelin / ConsenSys Diligence / Certora / Sigma Prime / Spearbit / Zellic) / Tier-2 (established, named firm with public track record) / boutique / unknown.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol across-protocol factor RD-F-005 score green collected_at 2026-04-30 21:19:18