QR Certificate Verification
Every AlchemOS Positive certificate includes a QR code linked to a public verification page. Anyone — auditors, customers, investors, journalists — can verify a certificate's authenticity instantly without an account.
How the QR code works
Each certificate has a unique ID in the format CERT-{YEAR}-{ORG_CODE}-{SEQUENCE}. This ID is encoded in the QR code and links to:
https://alchemos.io/verify/{cert-id}
Scanning the QR code or visiting this URL opens the public verification page.
What the verification page shows
The public verification page displays:
- Certificate ID and type
- Issuing organisation (legal entity name)
- Certification period
- Emission scope and tCO₂e verified
- Offset retirement serial numbers (linked to registry)
- Certificate status: Valid / Suspended / Revoked
- AlchemOS Positive digital signature confirmation
- Issue date and last verification date
No private account data, employee information or financial data is shown.
Certificate statuses
| Status | Meaning |
|---|---|
| Valid | Certificate active; all underlying data verified |
| Suspended | Organisation has flagged a data query; certificate temporarily withdrawn from public display |
| Revoked | Certificate permanently cancelled (e.g., material data error discovered post-issuance) |
If a certificate you are relying on shows Suspended or Revoked, contact the issuing organisation directly for an explanation.
Digital signature verification
AlchemOS Positive signs each certificate with an RSA-2048 private key. The public key is published at:
https://alchemos.io/.well-known/certificate-signing-key.pub
Technically sophisticated verifiers (e.g., Big Four audit firms) can verify the signature offline using standard openssl tools:
openssl dgst -sha256 -verify alchemos-pub.pem -signature cert-sig.bin cert-payload.json
Contact support@alchemos.io for the certificate payload and signature files.
Embedding a verification badge
Use the SVG or PNG badge downloaded from your Certificate Wallet on your website. The badge links directly to the public verification URL.
Recommended HTML:
<a href="https://alchemos.io/verify/CERT-2024-ACME-0012" target="_blank" rel="noopener">
<img src="/images/alchemos-carbon-neutral-2024.svg" alt="Carbon Neutral 2024 — Verified by AlchemOS Positive" width="180" />
</a>
Third-party verification integrations
AlchemOS Positive supports programmatic verification via the public REST endpoint:
GET https://api.alchemos.io/public/certificates/{cert-id}
No authentication required. Returns JSON with certificate status, period and summary data. See the API Reference for the full response schema.
Reporting suspected fraud
If you encounter a certificate that you believe may be fraudulent or misused, report it to integrity@alchemos.io with:
- The certificate ID
- Where you found it
- Your concern
AlchemOS Positive's trust and integrity team reviews all reports within two business days.