Eligible observations
Only production observations tied to cryptographically attributable signature or purchase-binding failures are eligible. Ordinary budget, allowlist, replay or heuristic prompt findings are excluded.
Privacy and namespace
Merchant identifiers are normalized with the source protocol, transformed with a keyed HMAC and never published. A signal appears only after three independent accounts contribute within a rolling 90-day window.
Decision effect
A qualifying signal can move an otherwise clear result to REVIEW. It can never create an automatic BLOCK and cannot override stronger local evidence.