Proof is a transaction management platform that guarantees identity assurance, enhancing trust, security, and compliance for essential digital interactions through real-time identity verification and agreement security. This innovative solution allows businesses to authenticate a user’s identity just once, enabling them to use that verified credential across a wide network of organizations, effectively fostering a portable digital identity recognized in various sectors including real estate, finance, healthcare, and legal fields. By integrating identity verification, cryptographic signatures, fraud prevention, and remote online notarization into one seamless workflow, Proof empowers organizations to finalize high-value transactions online while ensuring they remain legally valid and auditable. Additionally, it facilitates connections between users and notaries when necessary, employing a “human-in-the-loop” approach to provide identity assurance even in situations where automated verifications fall short, thus ensuring the secure execution of vital documents like contracts, loans, and legal agreements. Through this comprehensive system, Proof not only streamlines processes but also enhances the overall confidence in digital transactions.