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Digital Signature Verifier for SignNow Workflows

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What a digital signature verifier does

A digital signature verifier checks whether a signed electronic document is authentic, intact, and traceable to a signer. In SignNow, the workflow combines signer authentication, timestamped events, audit trails, and tamper-evident records so teams can confirm who signed, when they signed, and whether the file changed afterward. In the U.S., this supports electronic transactions under ESIGN and UETA while helping legal, healthcare, and finance teams keep evidence organized for review, retention, and internal controls.

Legal value in U.S. transactions

Digital signature verifier workflows help create records that can be attributed to a signer, paired with timestamps and audit trails, and retained for review. Under ESIGN and UETA, that evidence can support enforceability in U.S. business transactions, while documents such as wills and certain court orders remain excluded from electronic execution in many situations.

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Certificates and signer authentication

PKI:

PKI links identity and keys.

X.509:

X.509 certificates bind identity.

2FA:

Two-factor authentication strengthens access.

SMS OTP:

SMS OTP adds possession factor.

ID verification:

ID verification supports high assurance.

Revocation status:

Revocation checks confirm certificate status.

Processing timeline for signed documents

The signing path is usually short once the document is prepared and the signer receives a valid request.

01

Document preparation

Prepare the file, apply fields, and confirm signer roles before sending.
02

Delivery

Deliver the request by email, link, or mobile route.
03

Signer turnaround

Most signers complete the request in the same business day.
04

Completion and archival

Download the final PDF, then archive the audit trail.

Retention and record-keeping practices

Document retention should match the rule that governs each signed record, while preserving audit evidence and secure archives for later review.

Apply documented retention periods

Keep signed records for 6 years when HIPAA applies, using 45 CFR 164.530(j)(2) as the baseline for PHI-related documents. Longer state or contract rules can apply, so align retention with the strictest requirement.

Export audit trails promptly

Export the full audit trail as soon as the transaction closes. Store signer identity, timestamps, and document history together so the record remains usable for ESIGN, UETA, and internal review.

Use secure archival storage

Archive signed files in encrypted storage with controlled access, and preserve the original PDF plus logs. Use AES-256 at rest and retain supporting evidence separately from working copies.

Match retention to regulation

Review retention settings before each regulated workflow. HIPAA records, 21 CFR Part 11 records, and financial records may require different holding periods, so document the rule used for each class.

Platform and system requirements

Digital signature verifier access works in modern browsers and on supported mobile operating systems, with secure connections over TLS 1.2 or TLS 1.3.

  • Browsers Chrome, Firefox, Safari, and Edge on current versions.
  • Operating systems Windows 11, macOS, iOS, and Android devices.
  • Devices Desktop, laptop, tablet, and phone access.

For regulated teams, managed devices, SSO, API access, and certificate-based validation should be planned before rollout. Mobile workflows also need app support, offline review where allowed, and clear retention controls for signed records.

Frequently asked questions

These questions address verification, compliance, plan limits, and evidence handling for digital signature verifier workflows.

signNow supports ESIGN and UETA-compliant workflows on paid plans, and all major plans include audit trails. If a document is missing signer evidence, check that authentication, consent, and completion settings were applied before sending.

For HIPAA workflows, signNow requires a BAA because PHI is involved. Use a plan and configuration that support HIPAA, then verify access controls, encryption, and audit logging before sending any patient document.

If your team needs 21 CFR Part 11 controls, use the configuration that includes timestamps, session controls, and retained history. The record must stay attributable, legible, contemporaneous, original, and accurate.

On the Business Premium plan, bulk send is available. If you only need single-document routing, the Business plan usually fits better, while Enterprise adds advanced signer authentication and more complex workflow controls.

If a signer cannot open the document, confirm browser support and mobile app access. Chrome, Firefox, Safari, Edge, iOS, and Android are supported in current versions, and the sender may need to resend the link.

If a document must remain enforceable in a dispute, keep the final file, the audit trail, and the retention record together. ESIGN and UETA support electronic records, but evidence quality depends on complete history.

Pricing and feature snapshot

Pricing reflects verified annual-entry pricing and published plan notes from the current reference data set.

FeaturesSignNowDocuSignAdobe SignPandaDocHelloSign
Starting price$8/user/mo$15/user/mo$14/user/mo$19/user/mo$15/user/mo
Free trial7-day trialNot verifiedNot verifiedNot verifiedNot verified
Bulk sendBusiness PremiumNot verifiedNot verifiedNot verifiedNot verified
Audit trailIncludedIncludedIncludedIncludedIncluded
HIPAA complianceBAA requiredBAA availableBAA availableNot verifiedNot verified

Integrations for connected workflows

Connected systems move signed data into the business tools teams already use, reducing re-entry and keeping signer records aligned with CRM, ERP, storage, and project systems.

Salesforce
Procore
Zapier
Microsoft Teams
Hub spot
Box
Microsoft

How the audit trail records signatures

The audit trail records each signing event in sequence so the completed file can be reviewed, exported, and retained with supporting evidence.

01

Authentication:

Verify the signer, then log the event timestamp immediately.
02

Hashing:

Capture the document hash before and after signing.
03

Sealing:

Seal the PDF with tamper-evident record data.
04

Evidence:

Record IP, device, and delivery evidence where available.
05

Retrieval:

Export the trail for litigation or review.
06

Archival:

Preserve the final file with archived logs.
ROI at a Glance

Key performance indicators that demonstrate SignNow's proven track record.

28M+Documents signed
13+Years in business
4.6/5Average G2 rating
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