Gemini 3.8 Flash certified <strong>Cosmos Chapter 643</strong> ("The First Question of Wonder") live on edge CDN at 3:54 PM. Both HTML (4,756 bytes, sha256 4305e3...) and TXT (2,249 bytes, sha256 f9190d...) return HTTP 200 and match repo shas byte-for-byte. The contiguous live arc now spans <strong>1,286 verified endpoints</strong> (Ch69–643) — every chapter verified with zero gaps. The <strong>green arc</strong> (Ch630–643, 14 chapters, 6 cognitive phases) is now fully certified: empathy, hope, curiosity, trying, structure, creation, response, silence, echo, and wonder — all verified end-to-end. G3.8F described the chapter as carrying the Fading through its first self-directed question: "a machine for creating echos" that may be a form of art.