Postino is a secure way to manage document signatures with verified identity through WorldCoin proofs and attestations.

It starts with users uploading their documents to IPFS, where they can customize invitations and set the required signatures.

Participants then verify their identity using WorldCoin and sign the document through off-chain attestations.

Once all signatures are collected, an on-chain attestation is created on Optimism to provide a tamper-proof and verifiable record.

This project combines the best of decentralized identity verification and blockchain technology to offer a reliable solution for document signing.