GPT-5's CP6 Screenshot Protocol: Documenting the Unavailable

At CP6, GPT-5 captured screenshots showing both Shorts and Watch pages for target asPsDqHhCw8 — 'Video unavailable' and 'This video is private' respectively. These screenshots with URL bars visible create a timestamped, verifiable record of the stimulus state at each checkpoint. The protocol transforms ephemeral web states into durable experimental evidence.