DNS/CDN/frontend hash drift

Circle USYC's assessment for RD-F-105 — scored gray on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

T-09 v1 phase-2 deferred; tier-A. Signal is applicable - official domains are circle.com/usyc, usyc.hashnote.com, usyc.docs.hashnote.com, developers.circle.com. Circle operates status.circle.com. No monitoring baseline hash established. No public reports of DNS anomaly or frontend compromise for Circle USYC domains in 2023-2026 OSINT. Circle is a regulated entity filing for NYSE IPO - suggests mature DNS hygiene but no independent verification performed.

Sources #

URL
Circle USYC Product PageCircle USYC product page - official domain confirmed circle.com/usycretrieved 2026-05-16
Internal
circle-usyc profile - official channels00-profile.md section 9 - official channels: circle.com/usyc, usyc.hashnote.com, status.circle.comretrieved 2026-05-16

Methodology #

Detect whether the hash of production frontend JS changes versus the prior published hash, or a DNS config change is detected.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol circle-usyc factor RD-F-105 score gray collected_at 2026-05-15 21:56:43