---
pretty_name: Vesuvius August 2026 Evidence
license: mit
task_categories:
- other
tags:
- vesuvius-challenge
- tifxyz
- geometry-processing
---

# 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.