Admin EOA signing from new geography/device

Usual (USD0 / bUSD0 / USUAL)'s assessment for RD-F-107 — scored gray on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

Signal requires off-chain signing telemetry (geography/device fingerprint from admin EOA signing patterns). This is an M-tier curator-only signal requiring private feeds (MPC providers, session-key providers, or geographic IP analysis on signing node submissions). No public data source provides this for Usual's three Gnosis Safe multisig signers.

Sources #

Internal
T-09 Real-Time Signals Spec — v2/deferred tableT-09 research/outputs/09-realtime-signals.md §3.3 — F98 deferred: 'If MPC / session-key providers expose device fingerprints publicly'retrieved 2026-05-17

Methodology #

Detect whether an admin/upgrader EOA signs from a geography or device fingerprint inconsistent with prior signing history.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol usual factor RD-F-107 score gray collected_at 2026-05-16 20:39:44