The exit valuation s = v₂(3ᵈω − 1) over reduced Collatz states (ω, d). Bright towers in the lifting columns are depths matching the 2-adic digits of the anchor M(ω) = −2 log ω / log 9. Click any cell to trace its F-orbit. Companion to Reduced coordinates for the Collatz map, DOI 10.5281/zenodo.21273548.