What is ERC
ERC stands for Ethereum Request for Comments, and expresses common standards such as development and tokens that are carried out on Ethereum.
ERC-721
ERC-721 is the first standard for representing non-fungible digital assets on the Ethereum blockchain.
Currently, it is the most commonly used standard for issuing NFTs. This standard defines the minimum functions related to possession and transfer, which can be said to be the basic functions of tokens. In addition, we guarantee non-substitutability by setting something called a token ID so that the token to be issued is unique.
ERC-1155
ERC1155, also known as the multi-token standard, is a standard that focuses on handling multiple types of tokens collectively. There are already standards for issuing various tokens, such as ERC721, which was already introduced, and ERC20, which is a standard for interchangeable tokens, but gas costs tend to be high when transferring multiple types of tokens. I have.
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