erc721
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nibbstack
The reference implementation of the ERC-721 non-fungible token standard.
Hi. I would like to know how I can find the JSON schema for the metadata extension? I am using your token for a university project, as I did last...
Like, do they have a contract part and a counter part? (e.g. ```003002``` means error 2 of standard contract 3) Also, are there any tables of commonly used error codes...
https://github.com/nibbstack/erc721/blob/77030ec2a25123d17b13e7ee469f1c956a48451c/src/contracts/utils/address-utils.sol .codehash Docs: https://docs.soliditylang.org/en/v0.8.11/units-and-global-variables.html?highlight=codehash#members-of-address-types
The approach in this implementation is: ``` supportedInterfaces[0x80ac58cd] = true; // ERC721 ``` But this approach has gotten much more expensive with recent gas cost changes. We can improve this...
