Quoterium

The signature certificate and audit trail

What the signature certificate at the end of an accepted quote's PDF records, and how the document hash and audit trail support the signature.

When a quote is accepted, Quoterium records who signed what, when and from where. This is printed as a Signature certificate at the end of the PDF, and summarised at the top of the customer page.

The certificate

  • Certificate id: a unique reference beginning "SIG-". It is also shown in the editor's acceptance notice.
  • Document hash: a SHA-256 fingerprint of exactly what was agreed, including the number, title, text, items, choices, quantities, prices, totals, terms and payment milestones. Any later change to that content would produce a different hash.
  • Signed by: the signer's name and email address, marked "email verified" if they confirmed a one-time code, or "recorded by" your organisation if you accepted on their behalf.
  • Signed at: the date and time in your organisation's timezone, with the UTC time alongside.
  • IP address and Device: the network address and browser used to accept.
  • Signature: the drawn or typed signature.
  • Countersigned: who countersigned for your organisation and when, if you have.
  • Issued by: your organisation and the quote owner.

The audit trail

Under the certificate, the Audit trail lists the key events in order with their times: when the quote was sent, each time it was viewed, verification codes sent and confirmed, the acceptance and the countersignature. Where known, the IP address is shown.

On the customer page

The Accepted summary at the top of the customer's page shows the same essentials: who accepted and when, any reference, the signature, the countersignature, the certificate id, the digital fingerprint (time, email, IP address, device) and the document hash.

Good to know

  • The certificate is part of every PDF of the accepted quote, whether you or the customer downloads it.
  • Undo acceptance removes the signature, certificate and countersignature. A new acceptance creates a new certificate.
  • The full activity of the quote, including events not in the audit trail, is in the quote's History.

See also

Last updated 16 October 2026

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