Voice4Invoice

Screenshots

Problem Statement

Business owners can simply pass the transaction hash and purchase details to attest and generate an immutable, verifiable PDF invoice using Sign Protocol. Sharing transaction hashes alone isn't the best user experience for mass adoption—this solution bridges that gap by offering easily accessible invoices. In cases like reimbursements, you can share the invoice, and anyone can verify its authenticity

Solution

This solution is built using Sign Protocol's Schema Builder to define the invoice structure, Attestation to verify the transaction details, and an Indexer for seamless verification. It is currently deployed on Ethereum Sepolia, ensuring the invoices are secure, tamper-proof, and easily verifiable on the blockchain.