Memento app

Memento is an iOS app that lets users mint real world objects using NFC chips and add it to their collection. You can then post your moments with these mementos on your social feed. Mementos are ERC-6551 tokenbound NFTs and can hold other sportsFi assets. The backend is mostly Solidity code for the NFTs and registry contracts. The wallet is generated using Web3Auth's Swift SDK.

The app is written in Swift and adding an object is done by using a reprogrammable NFC chip. The smart contract involves an ERC 6551 registry contract deployed on the Chiliz Spicy Testnet as it is not native to the Chiliz blockchain so we had to deploy our own. For embedded wallets we are using Web3Auth's Swift SDK to generate accounts.