Algebraic α as a Diagnostic Reference for Fundamental Metrology

If the algebraic fine structure constant α⁻¹ = 137.035999177 (Carpenter, 2026s) is treated as exact — the source of truth, not a prediction to be validated — then every deviation in a measured constant becomes a diagnosable systematic with a traceable root cause. This paper demonstrates the method and applies it to the full variance register. We recompute every α-dependent CODATA 2018 fundamental constant using the algebraic α, holding all α-independent inputs at their CODATA values. Every α-dependent constant shows a coherent ~4.4σ offset. Every α-independent constant agrees to