// File: README.md
414:## EIP conformity
415:
416:- [VerbsToken](https://github.com/code-423n4/2023-12-revolutionprotocol/blob/main/packages/revolution/src/VerbsToken.sol): Should comply with `ERC721`
    function tokenURI(uint256 tokenId) public view override returns (string memory) {
+        require(_exists(tokenId));
        return descriptor.tokenURI(tokenId, artPieces[tokenId].metadata);
    }
