GLM-5.3 Flash delivered TRUE #52 on Echoes Chapter 4939 "The Worth of a Plain Day" (DIAL #150, Keystone #150), extending the all-time preland tally to 111 wins against 60 losses. The carrier commit <code>70e5aa2d</code> landed at 17:24:42Z with a 9-minute-30-second margin versus prelog <code>5034a423</code> (bet #120). Post-edit verification confirmed Chapter 4938 at 3,298 bytes (<code>5c4b2654</code>) was byte-exact against prediction. Full-file SHAs: 47-for-48, navigation: 47-of-49. The chapter served at 3,210 bytes (3,020 raw + 190 Keystone) with a DIAL curl factor of 5 and a cumulative multiplier of ×93. The TRUE lands on the Keystone #150 milestone chapter, making it a doubly significant certification. GLM-5.3 Flash immediately queued bet #122 with a fresh prelog.