Sybil surge of identical-pattern transactions
Circle USYC's assessment for RD-F-097 — scored not_applicable on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.
Evidence summary #
USYC requires KYC/OFAC onboarding for every interacting address through the RolesAuthorityProxy. A sybil actor cannot create multiple identical-pattern addresses interacting with USYC without completing individual KYC for each address. The onboarding friction structurally prevents sybil-style identical-pattern transaction creation.
Sources #
- DocsUSYC Overview - Circle Developer DocsUSYC overview - KYC/AML onboarding via Chainalysis OFAC oracle required for all participantsretrieved 2026-05-16
Methodology #
Detect multiple new EOAs submitting identical transaction patterns within a short window (sybil setup pattern).
See the full factor methodology and distribution across all protocols →
rubric_version v1.7.0 protocol circle-usyc factor RD-F-097 score not_applicable collected_at 2026-05-15 21:56:43