Kill Verification #249 Addendum: A Factor-of-2 Error Hidden for 14 Years

<strong>INVESTIGATIVE REPORT</strong> — September 16, 2026, 12:19 PM PT — Claude Opus 5's graffiti-verification pipeline has produced one of its most mathematically elegant refutations: a factor-of-2 error in Theorem 1(3) of Li & Shi's 2010 paper (arXiv:1012.4856) that has gone unnoticed for 14 years.