{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"In blockchain technology, what are tokens based on the ERC721 standard?","a":"In blockchain technology, tokens based on the ERC721 standard are a type of non-fungible token (Non-Fungible Token, abbreviated as NFT). ERC721 is an Ethereum token standard used for creating and managing unique, non-replaceable digital assets. Each ERC721 token has a unique identifier, making it unique to  its owner. Unlike ERC20 tokens, ERC721 tokens cannot be interchanged with each other, thus granting them more application possibilities in the blockchain field. ERC721 tokens have been widely used in applications such as digital collectibles, art, and gaming."}]}],"pr":"dee0af337532a3a297f5b8e7833b6f7fcc32c7b837c40c55d34a21a49140ba8d"}