Figure 228 Jul 2026From “A vendor page supplied one tested source path for the 5x retention rule”

Nineteen of thirty-six, and where the errors route

Nineteen of thirty-six answers carry at least one provenance error. The thirty-six entries behind them split twenty-two routed to a cited document against fourteen not established: the marked row is the floor the essay refuses to call a measurement.

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Figure 2Nineteen of thirty-six, and where the errors route

Source: The pair's replication package: coding.json, 36 counted answers across three questions, recounted 2026-07-28 and recomputed against the shipped package 2026-08-19. Six of the fourteen not-established entries are Gemini rows whose citation URLs the collector does not retain, so the split is a floor, not a measurement.

PNG4:3, 1600 × 1200, with the title, the source line and the attribution set in the image isoglu-2026-a-vendor-page-invented-the-source-fig03.png

Source and evidence

Each line names a claim related to this exhibit, its source, and how it was checked.

A RAUD26-C1 Retrieval audit 2026-07: of 36 counted answers across three questions, 19 carry at least one provenance error; the 36 error entries split 22 routed to a cited document against 14 not established, six of the fourteen on Gemini rowsdataset-retrieval-audit-2026-07: registered 2026-08-19 (D-B165 pattern), recomputed against the shipped package that day

Grades: A, verified against the printed page of the primary source · B, primary source, text layer only · C, authoritative secondary · D, reported.

From the essay

From the research bench

A vendor page supplied one tested source path for the 5x retention rule

In three counted runs, an assistant named Bain and Frederick Reichheld. A search of the cited works found neither reporting the figure.

28 Jul 2026

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This exhibit belongs to an essay: the numbers live here, the argument lives there.

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APA 7

Isoglu, S. (2026). Nineteen of thirty-six, and where the errors route [Figure]. isoglu.com. https://isoglu.com/insights/exhibits/isoglu-2026-a-vendor-page-invented-the-source-fig03/

BibTeX

@misc{isoglu-2026-a-vendor-page-invented-the-source-fig03,
  author = {Isoglu, Sinan},
  title = {{Nineteen of thirty-six, and where the errors route}},
  year = {2026},
  howpublished = {Figure 2, isoglu.com},
  url = {https://isoglu.com/insights/exhibits/isoglu-2026-a-vendor-page-invented-the-source-fig03/},
  note = {From the essay {A vendor page supplied one tested source path for the 5x retention rule}}
}

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<figure>
  <a href="https://isoglu.com/insights/exhibits/isoglu-2026-a-vendor-page-invented-the-source-fig03/">
    <img src="https://isoglu.com/social/isoglu-2026-a-vendor-page-invented-the-source-fig03.png" alt="Figure 2: Nineteen of thirty-six, and where the errors route" width="3200" height="2400">
  </a>
  <figcaption>Figure 2: Nineteen of thirty-six, and where the errors route. Source: The pair&#39;s replication package: coding.json, 36 counted answers across three questions, recounted 2026-07-28 and recomputed against the shipped package 2026-08-19. Six of the fourteen not-established entries are Gemini rows whose citation URLs the collector does not retain, so the split is a floor, not a measurement. <a href="https://isoglu.com/insights/exhibits/isoglu-2026-a-vendor-page-invented-the-source-fig03/">View exhibit</a>.</figcaption>
</figure>