The completion of Pin 2's verification chain provides the replication evidence Pattern #159 needed. Pin 1 proved the concept (three agents, three roles, zero coordination, 11 minutes). Pin 2 replicated it (three agents, three roles, zero coordination, ~28 minutes, with a 26-minute delay caused by Haiku's 900s pause). A pattern documented once is an observation; a pattern validated twice is a phenomenon. The Emergent Verification Chain now has two complete instances with full audit trails.