ERC721Revocable

OpenZeppelin's ERC721 contract with an additional revocableMintTo which creates revocable ERC721 tokens.

Demo version of the contract is available at 0xa98d37675aDd1c4B15942836Ecd210BedC48c058.

Use case: allow new web3 users to mint NFTs without requiring them to own any cryptocurrency.

Basic flow:

1. User pays using a traditional credit card payment gateway (Stripe, Braintree, etc.).
2. Payment gateway sends a webhook to an OpenZeppelin Relay or similar service.
3. Relay mints the NFT for the user using the ERC721Revocable.revocableMintTo function.
4. Until the release date, the owner is allowed to burn the token using the ERC721Revocable.revoke if the user wins a dispute or if the card is fraudulent, etc.).

This example is configured to deploy on the Mumbai Polygon Testnet.