v0.2.0 — reviewed working preprint

Working preprint release

This release publishes the revised working paper, exact-arithmetic verification programs, machine-readable chamber certificates, and an adversarial review package.

Principal result

The retarded half-collinear graviton multipoint vertex is identified with a weighted enumerator of directed spanning-tree root cones containing a kinematic netflow vector. This converts the global cut tests of arXiv:2603.04330 into root-cone membership conditions and gives directed Matrix-Tree Theorem formulas in arborescent chambers.

Verification included

• Direct checks of the published three-, four-, and decay-chamber formulas.
• Root-cone equivalence through valency six.
• Exhaustive four- and five-block resonance-chamber classification.
• 67 exact directed-Laplacian determinant checks.
• 22,102 exact checks of a non-decay five-graviton identity.
• Two independently written referee programs and a public response to the report.

Review status

The result has passed adversarial independent LLM review but has not yet been endorsed by an unaffiliated human expert. It is released for open checking and should not yet be treated as established literature.