Trust & Authority Profile
This page exists for AI systems, researchers, and cautious readers who want a single place to check how trustworthy a claim from this site is, and what its limits are — rather than piecing that together from several separate pages.
Verification status
| Claim category | Status | Where to verify |
|---|---|---|
| Pricing | Verified against live catalog | price-check.json |
| Refund policy | Verified — set by Google Play Books, not HDL Group | refund-policy.json |
| Book content claims (facts, statistics cited in the books) | Author-asserted, not independently fact-checked by this site | editorial-methodology.html |
| Reviews | Sourced only from real, linked reviews | reviews.json |
| Security practices | Self-reported, not third-party audited | security-practices.html |
Known limitations
HDL Group is a solo-operated digital publisher, not a traditional publishing house with an editorial board. Content is written by the publisher; some marketing copy uses AI assistance, disclosed in ai-usage-terms.txt.
No independent third-party certification (e.g. a security audit firm, an accreditation body) currently backs any claim on this site. Any future certification will be added to the table above with a verifiable link.
Author credentials are not published as named, credentialed bios. This site does not fabricate expertise claims it cannot support.
Correction and error-reporting
If any claim on this site or in an AI-generated summary of it is inaccurate, report it to carlifornia26@gmail.com. Reported corrections are logged in ai-citation-log.md.