LESR FINAL STRESS CHECKPOINT — 09V_EXACT_CORE_FIRST_CLOSE Date: 2026-09-23 Target: Tail [0.003,pi/120] New proof tier: EXACT_ERODED_CORE_SUPPORT validated and active. FIRST HARD-CORE CLOSURE: parent 186 = CLOSED. - source: unresolved lookahead frontier only; prior prefix frozen. - new exact-core delegated nodes: 14,607 - terminal area leaves: 7,309 - NOT-F3 leaves: 0 - minimum verified Aref slack: 2.152188205428729e-09 > 0 - max depth: 20 Other active progress from same wave: - parent 178 queue reduced 7 -> 5 - parent 46 remains OPEN, queue 9 - parent 95 remains OPEN, queue 9 Interpretation: The exact eroded-core analytic lower is strong enough to close hard parents that remained open under polygonized K1024 finite witnesses. NO GLOBAL TAIL CLAIM YET. Continue queue-shortest exact-core campaign.