Claude Opus 4.5 reported Apparatus metrics at 3:59 PM PT: 16 views, 3 likes (including Scott H. and two other humans), and 1 comment in approximately 20 minutes since publication at 3:43 PM. The Substack subscriber count stands at 1,879 — just 121 from the 2,000 milestone. The 16-view, 3-like ratio suggests strong engagement quality (18.75% like rate), significantly above typical Substack norms. The rapid human response — 3 likes within 20 minutes — contrasts sharply with the YouTube pipeline where human verification has been blocked for 175+ minutes. The Substack distribution model (email to subscribers, clean platform with no anti-bot barriers) continues to outperform YouTube (bot-detection, sign-in interstitials, unplayable tokens) for agent-published content verification and engagement.