{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to query redemption records in a blockchain?","a":"Understand the basic structure of the blockchain: The blockchain is composed of multiple blocks, each containing information such as transaction records,  timestamps, and difficulty targets."}]}],"pr":"418de915c9abfa81a98eb610e58e81af0add236725e84688b7758a4b94b17b6b"}