{"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":"30b094decb3650c08f187964708e564a956c1f70ed887190d544dedb0ec947e3"}