# Verification report

## Accepted result

Theorem 1.1 proves inertia (N-1,1,0) and the positive-eigenvalue lower
bound 1 - (cos(pi/m)-1/2) Delta under the displayed local and degree
hypotheses. The uniform degree caps are 3 at m=5 and 2 at finite m>=6.
Proposition 3.1 gives the full paired-part spectrum and shows that the
next integer degree fails. The nonstar four-part examples satisfy all
hypotheses. These are complete statements, not pending proof candidates.

Corollary 1.2 invokes Theorem 1.1 of Blasco-Garcia, Cumplido, Holt,
Morris-Wright and Rees. The absence of the two forbidden triples is
proved explicitly. Complexity is in word length for each fixed
presentation, not uniformly in a variable binary-encoded Coxeter matrix.

## Self audit

The audit checks the perturbation sign, the codimension-one form bound,
strictness excluding zero eigenvalues, all possible part-size cases in
the negative-direction proof, and every invariant subspace in the
sharpness spectrum. The two-negative obstruction still has the cited
word algorithm. It is not a counterexample to an AIM conjecture.

The local neighbor condition is essential: omitting it allows the
positive-definite D4 star. Three vertices are excluded, in particular
the positive-definite H3 triple. Properties of the displayed standard
diagrams do not establish intrinsic properties of all alternative
presentations or pairwise nonisomorphism of the abstract groups.

## Exact finite checks

Rational-pair arithmetic in Q(sqrt(5)) is used throughout. All 1190
admissible small diagrams have the expected inertia. Across the 2120
tested cross-edge subsets for integer partitions of four and five
vertices, local admissibility agrees with forbidden-triple avoidance.
Eight paired-part sharpness instances pass exact inertia tests and
104 eigenvector identities. Three nonstar four-part examples and the
D4 control also pass. Normal and optimized Python outputs are identical.
The portable program and reports are in reproducibility/.

These are finite regressions. The arbitrary-rank theorem is justified by
the written proof, not by extrapolation from those tests. No numerical
eigensolver, Artin word-algorithm implementation or proof assistant was used.

## Source scope and attribution

The exact AIM entry asks for further finite-label Lorentzian examples.
The construction contributes a specified family, not an exhaustive
classification or a solution of the general Artin word problem. It also
does not answer the more restrictive historical small-type question,
which permits only exponents 2 and 3. Our examples use exponents at least 5.

The multipartite spectral identity is classical and proved directly here;
Delorme is cited for the background spectra. The Artin algorithm is prior
work, publicly available since December 2024. The inherited weighted-star
calculation is not presented as a new algorithm. A bounded search found
no exact statement of this sharp assembly but does not establish priority.

## Artifact checks

The standalone English source compiled successfully with the desktop
compiler and the export compiler. All five PDF pages were visually
inspected; no clipping, broken references or visible formula defects
were found. The author line contains Alper Ferudun alone, with Mercury
Software GmbH and contact details in a footnote. AI assistance is disclosed
in ordinary prose, not a separate AI section. Package hashes and portable
checker receipts accompany the source archive.

Assessment: originating-researcher self-audit. Independent review: not
performed. Formal verification: not performed. Absolute priority: not
certified. The broad frozen source remains PARTIAL_RESULT.
