{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the operational actions involved in the state transition of the spot market in the blockchain?","a":"Trading pairs: Investors can choose the  trading pairs they want to trade, such as Bitcoin to USDT or Ethereum to Bitcoin."}]}],"pr":"9435601b9bdeffcb986839fc546de5d07ac91f7a84efb2ddb81cd86f4f32c2ef"}