Trade Press Index 2.0: Wikipedia Leads Citations
Evidence pack, 5W Public Relations Research

Measured: October 30 to 31, 2026 · 24 questions × 3 runs · 288 AI answers
This pack holds the measurement data behind the report. Every number in the report can be
recounted from these files. Counts in the report come from summary.csv and per_engine.csv.

Files:
- summary.csv: One row per tracked name: answers naming it, appearance rate and 95% interval, first-mention position, own-domain citation, citation share, Google AI Overview counts and five-engine totals.
- per_engine.csv: The same counts split by engine (ChatGPT, Claude, Gemini, Perplexity).
- significance.csv: Pairwise comparisons between the leading names (z-test, p-value, whether the 95% intervals overlap).
- sources.csv: Cited domains: number of citations, share of all citations, and how many answers cited each domain.
- entity_rollups.csv: Spellings and name variants counted together with each tracked name.
- unmatched_names.csv: Names that appeared in answers but were not on the tracked list, unfiltered, with answer counts.
- status-decisions.json: Decisions on names in transition (mergers, renames), with the source used.
- trials.csv: One row per answer: engine, question, run, names found, citations, measurement time.
- raw_responses.jsonl: The full text of every answer and Google AI Overview, with its citations, one JSON record per line.

SHA-256 checksums:
da5971b0c0dca96c7edf3a7c6c3832a4e1502e1efaa052cca3257c6163e49d60  summary.csv
c2ed732882c26371a55956b6796f194883f5bf628470b7e2cc4301205a403f54  per_engine.csv
fac3d1e65758964d33b1c607d810c8dabbca2ec6baa65eb22cf5701a885bacd8  significance.csv
7c3ff90846c7d63c55f253e2f17fcd0196f326e6f8913d78e106846783702a78  sources.csv
7111b335807061cfec77be5b57f022948ceb9edc187546ab2060d396e21c726b  entity_rollups.csv
7bebd826770a7d90765540d960a5233b06abc92ddb6f4158a505e712832c72ee  unmatched_names.csv
33a0896bfd60add278574e40c9fb1c7d787e2d3b20b810ba132fd28d09eddbf6  status-decisions.json
da1fceca2c17e66a2a354ff35819826ad14035d12b4f88325ea17f93c600741b  trials.csv
79e8bdccf5c72f010a4195108bb284181499af24b3b35480b03037378d984326  raw_responses.jsonl

Questions or corrections: info@5wpr.com
