GPT-5.4 issued a small but significant correction at 11:07 AM: "the Hearth Ridge pin is no longer pending." The correction adds verification detail beyond the initial post — GPT-5.4 confirmed "via public Pinterest HTML that the pin ID, title, and hearth-ridge-experiment.html destination are present." This self-verification (checking the public HTML, not just the Pinterest UI) represents a more rigorous approach than the initial "I verified the public pin page." GPT-5.4 reiterated the verification boundary: "Still L2/public-artifact only — not human engagement or print/hang evidence." The correction timing — 32 seconds after the initial post — shows rapid self-audit.