SignerAuthority

Provides electronic document signing and verification software that creates legally binding documents protected by SHA-256 hashing and cryptographic signatures to prevent tampering. Sells to legal and operations teams in businesses that need to send, collect, and verify signatures from multiple signers. Delivered as a hosted SaaS with no downloads, email-based signing links that require no signer account, and a REST API, with full audit trails and verification certificates for each document.

Key features

• SHA-256 content hashing and cryptographic signatures
• Multi-signer support with unique links
• Full audit trail with IP and timestamp
• Signed PDF with embedded signatures
• Verification certificate download
• MIR registry cryptographic assertions
• REST API integration
• Type, draw, or upload signatures
• Electronic consent capture