Lineum — Experimental Track (v1.1.0-exp)

Document ID: lineum-exp
Version: 1.1.0-exp
Date: 2025-08-23
Status: Experimental (public companion to core)
Depends on: Lineum Core v1.0.3-core

Track policy. This experimental track extends the frozen core (v1.0.3-core). It inherits all definitions, guardrails, and disclaimers from the core. Results here are iterative and version-stamped; artifacts include explicit LINEUM_VERSION = v1.1.0-exp.

1. Scope & objectives (pre-registered for v1.1.x-exp)

• D1 — Dispersion ω(k): extract k–ω map from windowed snapshots; fit small-k branch; report (c**) and (m**) (if applicable).
• D2 — Group velocity: pulse test; compare measured front speed with ∂ω/∂k from D1.
• D3 — External-field response: controlled shift of f₀ under φ-bias; report Δf₀ vs. control parameter.
• D4 — Convergence: Δt↓, Δx↓, grid↑; verify invariants within the core’s tolerance bands.

2. Methods (delta to core)

• Same codebase as core; variants toggled via env (no code edits):
  • LINEUM_VERSION="v1.1.0-exp"
  • LINEUM_PARAM_TAG: disp, w512, dt05_w512, grid256, fieldX (TBD) …
  • optional LINEUM_SEED
• Windowing/CI, SI constants, assertions, commit stamping = identical to core.

3. Falsifiable checks (exp)

• (E1) Dispersion small-k fit: reproducible (c_*) within ±5% across seeds/resolutions.
• (E2) Group velocity match: |v_group(measured) − ∂ω/∂k(fit)| ≤ 5%.
• (E3) Field response: linear (or specified) Δf₀ law within stated band on repeats.
• (E4) Convergence: key dimensionless ratios stable within core bands.

4. Evidence bundle (v1.1.0-exp)

• Artifacts will be named with version & tag, e.g.:
  • spec6_false_s41_disp_lineum_report.html
  • spec6_false_s41_dt05_w512_lineum_report.html
  • spec6_false_s41_grid256_lineum_report.html
• CSV/PNG/GIF mirrors included; each HTML prints version, RUN_TAG, and short Git commit.

5. Non-claims (carry-over)

We do not claim SM particle identification, intrinsic rest mass, GR mapping, or Lorentz invariance. “Effective mass” remains display-only unless explicitly superseded by dispersion-based (m_*) with stated assumptions.

Appendix A — Results logbook (to be filled)

• D1 initial k–ω slice (seed 41)
• D2 pulse test (seed 41)
• D3 field sweep (params TBD)
• D4 convergence table