Proof (formerly Notarize) is an identity verification and transaction security platform dedicated to strengthening trust in the digital world by verifying identities and securing transactions to protect businesses and their customers. Its core philosophy is "Verify once. Authorize everything." Proof is described as the identity network behind the internet's most important transactions.
In terms of purpose, Proof is built for moments that cannot go wrong, from signed documents to AI agents acting on behalf of users, with every action bound to a verified identity and instantly sealed when it occurs. Specifically, it covers: everything users sign, including signatures and notarizations, bound to the verified signer and then sealed to make it non-repudiable; everything users do online, including account opening, payments, and login, bound to real humans rather than stolen or synthetic credentials; and everything AI agents do for users, with every action an agent takes on a user's behalf authorized and traceable back to the user themselves.
Key capabilities include: verified users enjoy a frictionless experience, and their cloud wallet is smart enough to recognize who is already registered. First-time users verify their identity and instantly receive a digital identity, then present credentials without separate registration or a second process. Customers share only what is needed, no more: each identity request clearly shows the customer what is required, and the customer approves only the attributes they agree to, thereby building trust and reducing liability for holding data. Authorization and record creation for agents: as AI agents begin transacting on behalf of people, Proof provides cryptographic records of the actual humans who authorize agent behavior. Opening the AI channel: it is now possible to require an AI agent to provide an ID just as one would require a person to. Through x401, agents can buy insurance, apply for loans, open accounts, and book travel. This is a solution that unlocks the agent channel for all commerce.
In terms of platform strength, Proof has more than a decade of experience securing high-risk transactions, combining network-based verification and real-time experts, and supports millions of identity-assured interactions each year, and is called the industry's most powerful identity network. It secures more than $200 billion in transactions annually, its fraud model detects forgery through more than 400 network signals, and it has more than 1,800 real-time identity agents.
In terms of usage, the Proof platform offers multiple solutions to secure every interaction across the customer lifecycle. Whenever a user signs with their identity, the platform monitors every authorization. Defend automatically analyzes suspicious behavior in transactions; this is its anti-fraud platform, featuring deepfake detection and signals from other parts of the network. The platform also provides mechanisms such as the cloud wallet, identity request display, and attribute approval.
Applicable scenarios cover signing and notarization, account opening, payments, and logrecording, AI agent authorization and transactions, and other high-risk transaction scenarios. Proof also digitizes multiple industries, but the specific industry list is not specified in the provided materials.
In terms of limitations, the materials do not provide information about pricing, specific platform compatibility, deployment requirements, or regional availability.