Remark: Family 209. Integral counterexamples to Gersten’s conjecture

Disproves unrestricted integral Gersten injectivity in degrees $3$ and $5$. Two explicit two-dimensional ramified regular local rings of mixed characteristic $(0,5)$ have nonzero integral $K$-theory classes that vanish over their fraction fields.

The authors are OpenAI. This companion does not verify the proof. The claim is not a theorem of the Enter series and not a premise of any registered sheet. It does not close O.1. O.1 stays NOT_CLOSED. It is not a de Sitter state and not the QdS external-leg scheme. No quantum coefficient is admitted. No compilation is asserted.