The completion record for EA-OMEGA-BUILD-01 closes the Ω build program's four workstreams in a single day's build: twelve corpus seats fetched, pinned, normalized, verified, minted, and then repaired to one template after a projection defect was caught and root-caused; the Upstream Unfoldings raised at revelationfirst.com with the first transform-view edition; the Deep Time wing and the Controller raised at provenanceerasure.org, converting the observatory into a feedback instrument with its first closed cycle inscribed and its epistemics stated; and the Operator Registry with the Reception Edges raised at machinemediation.org over live archive data. In the counter-stack's own terms the day built detection's prototype, formalized relation, registered the operators, raised surfaces on two more channels, deepened custody by twelve corpora, and inscribed the controller's first cycle. The record lists the standing next steps — the scheduled controller, the station aligner, the literature audit, the Roman evidence matrix, the Assembly blind round — and closes on the program's continuing rule: every layer pointing backward to its ancestry and forward to its executable rule.