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Verify signer identity before they can access documents. Support multiple authentication methods programmatically.
Verify signer identity through email, SMS, knowledge-based questions, or ID document verification.
Choose from email OTP, SMS codes, access codes, knowledge-based authentication, or ID verification.
Add layers of authentication to prevent unauthorized access to sensitive signing documents.
Every authentication attempt is logged with timestamps, IP addresses, and verification results.
Use the Signer Authentication API to verify identity before document access.
View API Docs