# PuraTrust

> A public registry of peptide and supplement supplier credentials, licensing, third-party laboratory attestations, certificate of analysis cross-checks, and customer evidence, operated by AU-SVRN.

PuraTrust is a pre-launch supplier verification registry for the peptide and supplement supply chain. Public beta opens Q3 2026. Verification is free, always; editorial review is independent of registration; disputes append to the public record and nothing is deleted. The platform is operated by AU-SVRN under an editorial-independence charter; it is not the FDA, not a marketplace, and not a discussion forum.

## Methodology

- [How PuraTrust verifies a supplier](https://puratrust.id/articles/how-we-verify-suppliers): the seven independent evidence checks every record passes before the verified mark is issued.
- [Your COA tested a lot you never received](https://puratrust.id/articles/your-coa-tested-a-lot-you-never-received): the chain-of-custody gap between a certificate of analysis and the vial in a buyer's hand, and what closes it.
- [Reading FDA warning letters like a hunter reads tracks](https://puratrust.id/articles/reading-fda-warning-letters-like-a-hunter-reads-tracks): how to read agency enforcement language in order, six to twelve months ahead of a sweep.

## Articles

- [The market for lemons comes for peptides](https://puratrust.id/articles/the-market-for-lemons-comes-for-peptides): Akerlof's 1970 asymmetric-information model, applied to the peptide market in 2026.
- [What an exit scam actually costs to run](https://puratrust.id/articles/what-an-exit-scam-actually-costs-to-run): the arithmetic and the publicly observable signals a buyer can read four to six weeks ahead of a storefront going dark.
- [Kratom, SARMs, peptides, and the four-act regulatory play](https://puratrust.id/articles/kratom-sarms-peptides-and-the-four-act-regulatory-play): the recurring four-act sequence consumer-gray categories walk through, and where peptides sit in early 2026.
- [When "we test everything" became marketing](https://puratrust.id/articles/when-we-test-everything-became-marketing): Goodhart's Law, the COA, and why the next-generation signal cannot live inside the seller's promotional surface.

## Operator and registry posture

- [Homepage](https://puratrust.id/): mission, three pillars (index, attest, witness), audiences, why-this-matters, intake forms, terminal scan demonstration.
- [Articles index](https://puratrust.id/articles): editorial index of methodology and commentary, newest first.

## Audiences

- [Biohackers and longevity researchers](https://puratrust.id/#audience): verify a supplier before paying; subscribe to changes; report concerns.
- [Compounding pharmacies and purchasing teams](https://puratrust.id/#audience): source primary materials with a defensible due-diligence trail.
- [Independent journalists and academic researchers](https://puratrust.id/#audience): cite registry entries by witness id; export structured data.
- [Suppliers, resellers, and laboratories](https://puratrust.id/#audience): register a business voluntarily; claim an existing record; attach certificates and dispute responses.

## Key concepts

- [Verified, pending, flagged, shadow, revoked](https://puratrust.id/llms-full.txt): the five record states and what each one attests to.
- [Witness id](https://puratrust.id/llms-full.txt): 16-character hash-prefixed identifier on every state change, format `0xXXXX…XXXX`.
- [Audit log](https://puratrust.id/llms-full.txt): append-only, hash-chained record of every state change; SHA-256 chain; daily snapshot to a separate credential boundary.
- [Domain verification](https://puratrust.id/llms-full.txt): suppliers prove control via DNS TXT (`_puratrust-verify.{domain}`) or meta tag; re-verified quarterly with a 30-day grace before hard revocation.
- [Founding cohort](https://puratrust.id/llms-full.txt): first 1,000 confirmed waitlist signups; permanent witnessed-the-founding mark and priority sign-in invite.

## Legal

- [Terms of Use](https://puratrust.id/legal/terms.html): what the service is, what it isn't, dispute language, append-only commitment.
- [Privacy Policy v1.1](https://puratrust.id/legal/privacy.html): what we collect, what we don't, the distinction between active fingerprinting (which we do not deploy) and passive request signals.

## Machine indexes

- [llms-full.txt](https://puratrust.id/llms-full.txt): concatenated Markdown of the substantive site content for AI extraction.
- [ai.txt](https://puratrust.id/ai.txt): AI-system orientation document; citation guidance and known-facts disambiguation.
- [ai.json](https://puratrust.id/ai.json): structured entity record for AI engines (canonical name, description, policy, brand assets).
- [identity.json](https://puratrust.id/identity.json): identity graph (canonical URL, aliases, sameAs, brand mark URLs).
- [faq.json](https://puratrust.id/faq.json): Schema.org FAQPage JSON for direct extraction by search and answer engines.
- [faq-ai.txt](https://puratrust.id/faq-ai.txt): plain-text Q&A entries phrased as users would ask an AI assistant.
- [brand.txt](https://puratrust.id/brand.txt): brand vocabulary, voice rules, and disambiguation guidance for generative engines.
- [sitemap.xml](https://puratrust.id/sitemap.xml): full site URL list with last-modified timestamps.
- [feed.xml](https://puratrust.id/feed.xml): RSS feed of articles, auto-discovery linked from the site head.

## Optional

- [verification.json](https://puratrust.id/verification.json): registry-specific attestation format and audit-log row shape.
- [compliance-ai.txt](https://puratrust.id/compliance-ai.txt): regulatory posture, audience disclaimer, append-only dispute model.
- [humans.txt](https://puratrust.id/humans.txt): operator credits and editorial team contact.
- [robots.txt](https://puratrust.id/robots.txt): crawl policy with explicit allow-list for major AI search crawlers.

Last updated: 2026-05-17