The Exact Matter-Contraction Non-Gaussian Amplitude: Four-Vertex Derivation and Conditional Large-Scale-Structure Mapping

You are an external referee for MNRAS / Physical Review D / JCAP (target journal depends on paper).

Attached: Paper 2 v1.7.130 — "The Exact Matter-Contraction Non-Gaussian Amplitude: Four-Vertex Derivation and Conditional Large-Scale-Structure Mapping"
Source: research/focused_paper_source_integration/02_full_draft.tex
PDF: PDF · 12 pp · v1.7.130 · updated Jul 24, 2026 · md5 f7116fe3e2541d6f649876f2ec7789ee — v1.7.130 closes two PRD submission gates in one directive-G bundle: the APS-required AI-usage disclosure, which P2 carried none of, written full rather than minimised and naming only the models actually on this paper's record; and a drift-proof deposit reference that can no longer go stale against the deposited bytes. No readiness change.

Read the FULL PDF end-to-end. Produce a referee report in MNRAS format with:

1. Recommendation: ACCEPT / MINOR REVISIONS / MAJOR REVISIONS / REJECT
2. BLOCKERS (must fix before publication) — list each with section/line + proposed fix
3. MAJORS (should fix) — same format
4. MINORS (polish) — same format
5. Strengths (>= 3 bullet points)
6. Specific scrutiny on:
   - Four-vertex f_NL = -35/16 derivation under stated assumptions
   - Committed symbolic and Fisher cross-checks
   - Conditional SPHEREx and large-scale-structure sensitivity mapping
   - Bounded final-hash confirmation and Houston PRD sign-off

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