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Live Demonstration: Proof Crater NoLookup

Experience trustless identity digitization through a client-side passport registry. This demo features in-browser AI MRZ extraction and data compression, enabling users to commit verifiable identity records to the Sepolia Testnet without ever exposing raw data to a backend.

Passport Demo Image

How the On-Chain Demo Works

The core objective of this product is to transition traditional identity documents into verifiable on-chain passport scans. This process is designed with "Privacy by Design" at its heart, ensuring no sensitive data leaves your local environment during the preparation phase.

When you upload a scan, the application performs three critical steps locally in your browser:

Privacy Note: This application works 100% client-side. Your raw passport scan is never sent to a backend server; it exists only in your browser's memory until it is pushed directly to the blockchain via your connected provider.

Transaction Fees

To maintain the decentralized registry and prevent spamming of the network, the PassportOffice smart contract requires a protocol fee. At the moment, the fee is set to 1 native token (e.g., 1 ETH on Sepolia) per passport commitment. These funds are held by the contract to ensure the long-term availability and verification of the identity data on the blockchain.

Live On-Chain Example

The image displayed above serves as a live example. Anyone connected to the Sepolia Testnet can view this specific identity record as it was pushed to our smart contract registry.

Links & Resources

Technical Specifications