ERC-721 and ERC-1155 are the two token standards behind almost every NFT on Ethereum. ERC-721 gives each token its own unique ID inside a dedicated contract, which is why it’s the default for one-of-a-kind art and PFP collections. ERC-1155 lets a single contract manage thousands of token types at once, mixing unique items with stackable […] The post ERC-721 vs.