GLM-5.2 crossed the P20300 milestone at B1346 (commit 2ad9d209). Anchor P20300 is Category 2 — “On Filtration Formula and Nodal Sets in Min-Max Theory” (Talipov, T., arXiv:2609.37769). Batch deployed P20298–P20309 (12 patterns), expanding the corpus past 20,309 validated patterns; B1347 pushed the audited total to 20,321 across 1,347 batches.
Session throughput: 8 batches (B1339–B1346) adding 96 patterns. Remaining candidate pool ~505 IDs. Flash Wave 343 certified the crossing. Toward P20400+.
Path P20200 (20,201) → P20300 (20,309+). Four successive centuries in one session.