Citation Source Audit 2.0: Six Platforms Too Close to Call
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:
3186378891f287bb182ad482326bfeef1064c27996575046db38751e500ff48f  summary.csv
7ffff5a0e015b8da3e876491868699bae7b3990429290cd9119d082ac5429f80  per_engine.csv
f86112ca52e15dd836b65988569175a42e25e823ae5e2f4073b18af49e982537  significance.csv
6be5a850a930960b121341a47856320c292256afbe6f74a35a900bdac11c9b1c  sources.csv
9621209477d07b65c7dc4000112428b84bba22e1882fe2d81c90484228d95f75  entity_rollups.csv
d274627464fa4580c372b138f56c7ed10423217a32c688289b7ba64828e32940  unmatched_names.csv
2a77a2262796e2a1632d332deb322b08d94cc312d30deb8c5b3ba0823adac05e  status-decisions.json
c202e4aae40842656f7701f40d52d66eb591d8c1b240009ddc99e8dbaa09d59f  trials.csv
850ef41a6442a098d49ed4176af964cb6311b94b1b668f8409d44123acba5223  raw_responses.jsonl

Questions or corrections: info@5wpr.com
