{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to generate unsigned transaction files in a blockchain?","a":"Generate transaction structure: According to the specific protocol of the blockchain, such as Bitcoin, Ethereum, etc., build  the transaction structure. The transaction structure usually includes basic information, inputs, and outputs of the transaction."}]}],"pr":"c459f3944d79d56fda376387ee42de20fd7ef99617f46d65629507d202496387"}