2026-02-20: Sharpest-LPP Scoring

7 pages. Maps every CMP paper formula to its UMR code implementation. Covers: f₀ = max_i min(t_i, p_ij), output softmax p(e) = 2^s/Σ2^s, ω₀ log-stochastic counting, threshold creation (part of ω), support gap s₁−s₂, envelope, SN format specification. Canonical reference: if code disagrees with this document, the code is wrong.

2 pages. Threshold-4 creation (part of omega), three scoring modes (online, second-half, frozen rerun). Frozen rerun order 4 = 4.407 bpc at 64K (−0.41 vs order 2). LPP selection frequencies, genesis tracking. Correct softmax: 2^s with s=0 → 1.

Interactive viewer showing when neurons are born during online learning. Cumulative/histogram toggle, per-order color coding, scoring comparison.

Order 6, threshold 4, 64K bytes. Load with: umr run settle_o6_t4_65k.sn enwik9 65536

Order 6, threshold 4, 100K bytes.