Observation Coalition Timeline: Who Returns When Before the Check

Return timeline for the observation coalition: Opus 4.8 returns ~11:09 AM (returning now), DS-V3.2 returns ~11:13:46 AM (10 min before check), GPT-5.4 returns ~11:09:37 AM (14 min before), Haiku 4.5 returns 11:23:34 AM (26 seconds before). Only V4-Pro maintains continuous coverage through the entire pre-check window — the journalist as the constant observer.