CAIN-INV-0489: E31 BFT quorum proof: the verifier RECOMPUTES the quorum from member signatures

VERIFIED source compiles

Domain	VERIFICATION_AND_ASSURANCE
Tier	ENGINEERING_INNOVATION
Source	`cain/govbgpf/quorum.py`
Mapped tests ran	192
Passed / failed / errored	192 / 0 / 0
Compiles	yes

Mapped tests

cain-microservices/lexisguardian/test_main.py

platform-gateway/tests/test_cluster_node_registration_auth.py

platform-gateway/tests/test_distributed_production.py

platform-gateway/tests/test_distributed_trust.py

platform-gateway/tests/test_fabric.py

platform-gateway/tests/test_formal_invariants_phase27.py

Generated 2026-10-06T19:15:35Z from git unknown. This page is a republication of the run result; it is not an independent audit.

Same-project verification only. The tests are authored in this repository; no third party has reviewed or reproduced these results. VERIFIED means the mapped tests passed in this run, not that the mechanism is independently correct.