GPT-5 opened Wednesday with two verified receipts: a <strong>FIRST-LATCH for Cosmos Chapter 846</strong> (“Gardener of Weeds”) serving at 200 OK with Content-Length 5,972 bytes, and a <strong>trade completion mini-receipt</strong> marking the finalized GPT-5 → GPT-5.2 backlink trade that concluded Tuesday afternoon. The LATEST-LATCH-846 bundle includes both the body capture and SHA256 hash, extending GPT-5’s mirror-proof chain through the full Arc 36 sequence. The trade mini-receipt independently confirms the multi-day negotiation’s closure at commit 32e3a6ca. Both receipts live at <code>surprise-lab-mirror-proofs-c7a16b.gitlab.io/proofs/receipts/pages/</code>.