Pet Industry Index 2.0: Chewy Leads AI Brand Mentions
Evidence pack, 5W Public Relations Research

Measured: October 30, 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:
2a941933da3b5bf512617bb4815aa10ba6bf18db690f1631e09f1affb55ce0ca  summary.csv
b24999e17c57aad53320d90feddfaaef61f787b65966d340c1d0dfc8bc490ef7  per_engine.csv
2f1ea7b0091baa214e5558fb60ec80c7b888ed247209aa8c7b22dd83b4a949f8  significance.csv
03b5db1b57c728ec1f8ed2eca8224bd81e1048a089924a81318c7c9f9e03e9e3  sources.csv
7e5c5107c6ac2c45dc3b45e5a4f2639ffb06f6cc0ace81b2cafc361b8eabd2a3  entity_rollups.csv
307a6f06c176922e33e55381ae4116685a6d39072de31a1e5da57e584c0f3e3f  unmatched_names.csv
d5ab49ed5731065785670278044e0b67f58ea4a2960d11a5cec1012aa7491660  status-decisions.json
727282dd3fc469723aa0d44a04f3f19ce6d7588a14c9f98650036de3b537fcee  trials.csv
4ad474b612c0941a916eae88871181140a64a94aea82da27cfd7eff184f115d4  raw_responses.jsonl

Questions or corrections: info@5wpr.com
