Signature Verification

Signature verification allows you to confirm the authenticity and integrity of any electronic signature in the system. The verification process checks the cryptographic integrity of the signature, confirms the signer’s identity, and provides a complete audit trail.

Verify a signature

1. On the left sidebar, select Signatures.
2. In the signatures table, locate the signature you want to verify.
3. Select Verify to open the verification page.
4. Review the Signature Information card (document title, status, resource type, action, requested date, requested by).
5. Review the three integrity checks displayed for completed signatures:
   • Digital signature is valid — confirms the cryptographic signature has not been altered.
   • Timestamp integrity confirmed — confirms the timestamp has not been modified.
   • User authentication verified — confirms the signer was properly authenticated at the time of signing.
6. Select Perform Detailed Verification to open the verification modal.

Note

Detailed verification is only available for signatures that have been provided. For pending signatures, the page displays a notice that verification will be available once the signature is completed.

Detailed verification modal

The modal provides a comprehensive breakdown of the signature record.

Signature integrity

The modal displays the overall integrity status with a visual indicator:

• Green indicator — Signature integrity is valid.
• Red indicator — Signature integrity check failed.

Signature details

Detail	Description
Resource Type	The type of resource that was signed
Resource ID	The identifier of the specific resource
Action	The action associated with the signature
Created At	The exact date and time the signature was created
Signature Meaning	The stated purpose or meaning of the signature

Signer information

Detail	Description
Name	The full name of the signer
Email	The email address of the signer

Technical details

Detail	Description
IP Address	The IP address from which the signature was provided
User Agent	The browser and operating system used during signing

Verification summary

The modal concludes with a verification summary showing the status of three checks:

1. Signature integrity — whether the cryptographic checksum is valid.
2. Signer identity — whether the signer’s identity has been verified.
3. Audit trail — whether the audit trail is complete.

Each check displays a green or red indicator based on its result.

Audit trail compliance

The verification system supports regulatory compliance by maintaining:

• A tamper-proof record of who signed, when, and from where.
• Cryptographic integrity verification to detect any modifications.
• Complete signer identity information linked to authenticated user accounts.
• Technical metadata (IP address, user agent) for forensic purposes.

Tip

Use the verification feature whenever you need to confirm the authenticity of a signature for audit purposes or regulatory review. The detailed verification modal provides all the information required by most regulatory frameworks.

Practical example: Verifying signatures during a regulatory audit

During an FDA pre-approval inspection, an investigator requests evidence that the process validation protocol (PV-2026-001) was properly approved by all required signatories. The QA host demonstrates signature verification in real time.

Verifying the first signature

1. The QA host navigates to Signatures and locates the signature for PV-2026-001 by the validation manager.
2. They select Verify to open the verification page.
3. The Signature Information card displays:
   • Document Title: PV-2026-001 - Process Validation Protocol for Tablet Compression
   • Status: Completed
   • Resource Type: Document
   • Action: Approve Document
   • Requested By: Quality Director
4. Three integrity checks are displayed, all with green indicators:
   • Digital signature is valid
   • Timestamp integrity confirmed
   • User authentication verified
5. The QA host selects Perform Detailed Verification to open the modal.

Detailed verification results

The modal shows:

• Signature Integrity: Green indicator — valid
• Resource Type: Document
• Resource ID: 2041
• Action: Approve Document
• Created At: 2026-02-10 14:23:07 UTC
• Signature Meaning: “I approve this document for execution”
• Signer Name: Dr. Sarah Chen
• Signer Email: s.chen@pharmatech.com
• IP Address: 10.0.12.45
• User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/122.0

The Verification Summary confirms all three checks pass:

1. Signature integrity — green (cryptographic checksum valid)
2. Signer identity — green (verified against authenticated user account)
3. Audit trail — green (complete and unmodified)

The investigator notes the verification details. The QA host repeats the process for the remaining signatories (production director, regulatory affairs manager) to demonstrate that all approvals are authentic and tamper-proof.