Legacy Case A supporting view. At each populated checkpoint, the original instrument sampled M=64 continuations and projected the resulting finite field four ways. The bands show the reported sequence under that declared instrument: residue, scaffold family, parameter, then answer.
How to read. Each band is a different push-forward of the same sampled future-field measure μπK,B through a coarsening map. Endpoint evaluation only sees L4. The earlier layers show a sampled target-excluding concentration before the answer projection concentrates. At 25%, the M=64 readout is family-concentrated and parameter-diverse; by 50%, the answer projection is concentrated. These are finite-sample observations under the declared instrument, not a proof that all continuations are impossible. Data: Qwen/Qwen2.5-Math-7B-Instruct on floor-sum target Σn=1..40 ⌊(3n+7)/5⌋ = 532. This page preserves the original 64-rollout Case A morphology; the 0% prompt-root state is not populated here. Use the current RC18 case page and RC18 evidence archive for current prompt-root and higher-M tables.