If someone else deploys an nft code, how should I verify that his nft code is from the cw-nfts specification?

[99Kies]

If someone else deploys an nft code, how should I verify that his nft code is from the cw-nfts specification?

[taitruong]

Not sure what exactly u mean. But you can query for contract's code id (e.g. starsd query wasm contract CONTRACT_ADDR), then query for code info (e.g. starsd query wasm code-info CODE_ID). Here it returns data_hash. Now you can build cw721-base contract - which then returns data hash. This way you can check whether it uses cw721-base contract.

[99Kies]

@taitruong In fact, I would like to discuss whether there is a concept of inheritance on cosmwasm.

like solidity.

contract XXXXX is IERC721 {}

[taitruong]

@taitruong In fact, I would like to discuss whether there is a concept of inheritance on cosmwasm.

like solidity.

contract XXXXX is IERC721 {}

You can easily extend cw721-base. Examples here:

• https://github.com/CosmWasm/cw-nfts/tree/main/contracts/cw721-metadata-onchain
• https://github.com/CosmWasm/cw-nfts/tree/main/contracts/cw2981-royalties