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How many NFTs does a smart contract have?

I am not understanding, does the smart contract have 1 NFT or many NFTs.

Or is it that I deploy one smart contract for each type of my NFTs like dogs, cats... ? or it doesn't matter ?

And when I own a NFT, is it that I own a mapping in the contract token id => my eth wallet adress?

Solution

  • does the smart contract have 1 NFT or many NFTs

    The ERC-721 standard defines a smart contract as a collection of multiple NFTs.

    one smart contract for each type of my NFTs like dogs, cats... ? or it doesn't matter ?

    It depends on your use case. There's no "best" or "correct" way.

    And when I own an NFT, is it that I own a mapping

    Technically, nobody owns the mapping. But in most cases, your address is the value for the token ID key in the mapping.