Confirming a Turtini-issued PDF is authentic

If you received a PDF that claims to come from a Turtini-using org and you want to confirm it's the document they actually sent:

1. Look for the small QR code in the bottom-right corner of any page.
2. Scan it with your phone, or open the URL printed below the QR (turtini.com/verify/<id>).
3. The verify page shows the issuing org's name, logo, and the document type (quote / invoice / contract / etc.) along with the date it was issued.

To confirm the bytes haven't been tampered with after issuance:
1. From the same /verify/<id> page, drag the PDF you received into the drop zone.
2. Your browser computes the SHA-256 hash locally — the file never leaves your device.
3. If the hash matches what was registered at issuance, you'll see "matches the issued document". If anything was changed (even a single character), the hash will not match.

If the issuer's org doesn't match what you expect, or the verify page returns "no record", treat the PDF as suspect — it may be forged, or generated outside the Turtini platform.

Revoked documents (typically superseded by a newer version) show a Revoked notice with the reason and date. The bytes still match the original — but the issuer has flagged it as not the document you should rely on.

This is identical to how a notarial seal works on paper, with the advantage that you can verify it instantly without contacting the issuer.