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Vesuvius August 2026 evidence
Reproducible evidence for two narrow Villa/TIFXYZ contributions by Aviad Cohen. The source data are public Vesuvius Challenge artifacts. This dataset contains metadata, hashes, measurements, scripts, and tests—not scroll imagery or inferred text.
Boundary corpus study
A frozen scan of all 450 TIFXYZ roots in the 2026-08-02 public registry measures the corpus impact of the final-quad bounds fix merged as Villa PR #1264. All roots completed. The fixed domain admits 24,757 fully finite XYZ boundary quads across 96 roots (49,514 exporter triangles), 0.01206% of valid quads corpus-wide. This is systematic, sparse geometric recovery; no claim is made that every recovered point is correct papyrus or changes downstream reading.
UUID producer audit
All 450 current public meta.json objects were fetched and hashed. 277 reuse
the literal UUID output_tifxyz, including 262/262 normalized roots. A public
Villa writer has a matching default fingerprint, but the private production
command is not observable, so producer attribution is explicitly an inference.
The proposed remediation adds an opt-in --uuid=<id> while preserving the
historical directory-name default.
Each directory includes its methodology, executable script, tests where applicable, and machine-readable frozen results.
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