Release statement.

statement.{ The $C_2$/constant-slot selected-sector coefficient is constructed under the stated root compactness and wavefront hypotheses, for a fixed subtraction function and moment.

Its central tensor tables have explicit algebraic proofs and an included exact-arithmetic reproduction procedure. No unavailable local script is a premise.

The complete two-edge interaction, its retarded interpretation, and BRST/BV observability remain outside the proved result. }