{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of versioned transactions in blockchain?","a":"Decentralization: Blockchain transactions no longer rely on centralized authority institutions for recording and management, but are maintained collectively by distributed nodes, reducing the risk of single-point failure."}]}],"pr":"e0bd1f343b0654d9bff926a7510cfb3a43b58adcf2c0ef8e73a9f6d0bdb6d7d5"}