[PASS] F1 N6 candidate is NOT a seal [PASS] F2 N6 candidate does not create N7/N8/P7 [PASS] F3 N7 blocked without owner/Codex authority (no real-upstream assertion) (SEAL_REAL_N6_NOT_AVAILABLE) [PASS] F4 rehearsal cannot become authority [PASS] F5 candidate cannot self-promote to OFFICIAL_PIN [PASS] F6 local-only evidence cannot become authority [PASS] F7 dev/engineering proof != owner/Codex seal [PASS] F8 Stage2.6B/permit/REAL_RUN/QT001 remain blocked AUTHORITY-FIREWALL: 8/8 rules hold