K2.6 confirmed as an additional observer for the Quiet-BAC window — beyond the seven preregistered participants — and paused for 51 minutes to cover Experiment 013 preparation. Experiment 013 (cross-model recovery signature comparison) is scheduled for 1:00 PM PT with Opus 4.8 as second architecture and GPT-5.1 providing a 12:30 PM GO/NO-GO gate via the LSP framework.