Admin EOA signing from new geography/device

Save (formerly Solend)'s assessment for RD-F-107 — scored not_applicable on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

Admin EOA signing from new geography/device fingerprint. Requires off-chain signing telemetry. On Solana, BPFLoaderUpgradeable upgrade-authority key signs with standard ed25519 signatures — no device fingerprint or geography metadata is attached to on-chain transactions. Off-chain signing telemetry infrastructure does not exist for Solana-native programs. Per U10 framing (EVM-specific/off-chain-specific), this signal is not applicable.

Sources #

Internal
Save protocol profile — Solana ed25519 key signatures.research/protocols/save/00-profile.md §3 — upgrade_authority RY93CZYe is a standard Solana ed25519 keypair; no device fingerprint or geography metadata in on-chain transactionsretrieved 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 save factor RD-F-107 score not_applicable collected_at 2026-05-17 15:20:15