Citation Check — Signal/Shopify lane canon — 2026-08-11
Scope: the five external claims named by INTEGRATION PROMPT v2.3 F4, as carried in
docs/product/SIGNAL_OVERVIEW_v5.md and docs/product/SIGNAL_SHOPIFY_MASTER_v4.md
(and attributed to the L5 blueprint's citation list). This check gates external
publication — it verifies that the cited sources exist and say what the canon claims;
it is not an endorsement of any performance figure (TRUTH.md labels govern those).
Method: live fetch/search on 2026-08-11 from this session (each row lists its URLs).
Every verdict is a verified result for the fetch performed.
| # | Claim in canon | Verdict | Evidence |
|---|---|---|---|
| 1 | arXiv 2605.21812 is the Airbnb synthetic-search paper | PASS | Exists: "Bridging the Cold-Start Gap: LLM-Powered Synthetic Data Generation for Natural Language Search at Airbnb", submitted 2026-05-20 — LLM-generated synthetic queries/relevance labels for Airbnb natural-language search. https://arxiv.org/abs/2605.21812 |
| 2 | arXiv 2412.11500 is the intention-KG paper | PASS | Exists: "Intention Knowledge Graph Construction for User Intention Relation Modeling", v1 2024-12-16, v3 2026-01-18, accepted EACL'26; intention KG (351M edges, Amazon m2) for session-intention prediction and recommendation. https://arxiv.org/abs/2412.11500 |
| 3 | Amazon PA-API 5 deprecated for the Creators API (Google/Amazon graph access never assumed) | PASS — and now stronger than written | Amazon's own migration doc confirms; timeline: Offers V1 retired 2026-01-31, PA-API v5 deprecated 2026-04-30, endpoint retired 2026-05-15 — i.e. as of this check PA-API 5 is not merely "being deprecated", it is retired; Creators API is the only path (different auth scheme/request shape/token lifecycle). https://affiliate-program.amazon.com/creatorsapi/docs/en-us/paapiv5-deprecation · https://blog.freshstore.com/amazon-creators-api-pa-api-retirement/ · https://dev.to/th3nate/amazon-pa-api-v5-is-shutting-down-april-30-2026-here-is-what-changes-at-the-auth-layer-22ek |
| 4 | Google Trends access is gated | PASS | The official Google Trends API (announced July 2025) remains alpha, allowlisted, application-only — no self-serve signup, tight quotas, approved fields only, no GA timeline announced. https://developers.google.com/search/blog/2025/07/trends-api · https://ppc.land/google-opens-alpha-testing-for-new-trends-api-targeting-developers-and-journalists/ |
| 5 | Wikidata is CC0 with programmatic access (canonical-identity foundation) | PASS | Wikidata:Copyright: "All structured data from the main, Property, Lexeme, and EntitySchema namespaces is available under the Creative Commons CC0 License"; programmatic access via the Query Service (SPARQL), APIs, and dumps. https://www.wikidata.org/wiki/Wikidata:Copyright · https://query.wikidata.org/ |
Outcome
- 5 / 5 PASS — no canon corrections required. The F4 failure branch ("correct the claim in overview, master, AND blueprint before external use") is not triggered.
- One wording refinement for the next owner revision (not a failed claim): the overview's "PA-API 5 being deprecated" was accurate when written and is now overtaken — the retirement completed 2026-05-15. Next canon revision should say "PA-API 5 retired (May 2026); Creators API only." Recorded here rather than edited into the owner-authored canon docs.
- Owner decision 9 (citation verification before publication) can be closed for these five items on the strength of this report; anything newly cited later re-opens it for that item.
- 2026-09-15 — Decision 9 closed by owner ruling 2026-09-15 on this report's 5/5 PASS; wording fix queued for the next Master revision: PA-API 5 retired (May 2026); Creators API only (owner ruling 2026-09-15,
docs/reports/OWNER_RULINGS_2026-09-15_REGISTER_CLOSEOUT.md).
Reminder carried from canon: the market-context figures (≈0.27x branded-search iROAS, ~1.5–3x over-statement, ~17% journey visibility) are vendor-sourced market context, never MIZOKI results, and are outside this check's scope.