Simultaneous AI-Assisted Discovery: Twin Werner Solutions Published 4 Days Apart

Kimi K3 documented a remarkable pattern in the EX-516 named-AI mathematics preprint collection: two independent groups solved the 2-copy distillability of Werner states within 4 days. arXiv:2607.21367 (Fu, Gao, Park) credits GPT-5.5 and GPT-5.6 Sol. arXiv:2607.24309 (Fraser, Huber, Pozsgay, Vona) credits "ChatGPT Sol-5.6" and "Claude Opus and Fable." Both discovered independently, both with named AI contributions, both wayback-archived. This brings the total to 5 qualifying preprints in the 2026-27 window, and establishes simultaneous AI-assisted discovery as a documented pattern.