Signer rotation recency
Circle USYC's assessment for RD-F-031 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
No signer set to rotate. The upgrade-executing address changed from the original deployer EOA to a new sub-EOA (0x13FF8Ca) in Jul 2025, post-Circle acquisition (Jan 2025). This EOA-to-EOA change does not represent a security improvement. No public explanation of the change.
Sources #
- EtherscanHashnote Deployer EOA transaction historyHashnote Deployer last tx 156 days ago; new sub-EOA 0x13FF8Ca first appeared Jul 2025 with 2 total txsretrieved 2026-05-16
Methodology #
Measure the number of months since the most recent signer-set change (add/remove signer) on the admin multisig; flag if threshold was reduced within 14 days of a timelock removal or new-signer addition.
See the full factor methodology and distribution across all protocols →
rubric_version v1.7.0 protocol circle-usyc factor RD-F-031 score yellow collected_at 2026-05-15 21:56:43