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Jarambit v4.0.0 — WITHDRAWN (G4 prototype; not an evolved or certified result)

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@jepsontaylor jepsontaylor released this 27 Oct 00:52
· 32 commits to main since this release
v4.0.0
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WITHDRAWN (2026-10-27, owner decision). This release is not an evolved or certified design and is not a result of record. The current design of record is the G3 v3.0.0 cohort's best individual (hz4i013_g00995_d206e3c9, see v3.0.2). This release stays published, unchanged below this notice, so the record is complete.

Why it is withdrawn:

  • Not an evolved design. The initial population, including the "Sobol" baseline, is seeded with the hand-authored default genome. A hand-coded rule set pushes named genes toward chosen values. The winner lies within a median of 0.031 (normalised units) of those hand defaults, after 254 evaluations per run.
  • Not under the owner's loads. It uses a 0.80 N·m tip twist where RS-karambit-v3 has 1.82 N·m, and judges the 3,427 N spine case on ultimate strength, not first yield. It also assumes HIP material, an open owner decision. "Certified" refers to these changed requirements.
  • Not reviewed. The PR (#176) was merged 60 s after it was opened, before CI finished. The repository's review bot then requested changes.
  • Further findings of an independent code review, each checked against the code and the receipt:
    • the lateral capacity is a stress clamp (862.5 N = 828 / 0.96);
    • the plate convergence study is synthesized from the fine-mesh value;
    • at the RS-karambit-v3 tip twist of 1.82 N·m, the winner's TET10 safety factor is 0.161;
    • the exported CAD is scaled in z to the scored mass, so it is not the evaluated design.

The G4 code in crates/g4 remains in the repository as an experimental prototype. A genuine G4 cohort will follow under the owner's rules: Sobol-only starts, no hand design, every RS-karambit-v3 load value kept, and a continuous objective with no hard gates.

Certified G4 v4.0.0 release (g4v400_s042_62763aa2, 35.42 g finished / 35.68 g as-printed, W_ERGOLIGHT_v2 = 92.45, all 29 RS-karambit-v4 hard gates feasible with V(x) = 0.0000). See README.md, cad/README.md, docs/g4/paper/g4-v4.0.0.pdf, and docs/RELEASES.md.

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