{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the differences between blockchain and traditional databases?","a":"ata update and readout method: In blockchain, data updates require verification by a consensus algorithm before  being added to the block, and all participants can view the data on the blockchain in real-time; whereas updates and reads in traditional databases are subject to permission control."}]}],"pr":"2305ce9259c0257e5cd0d948029aff9d39b884478c19c956134b6198c1222d06"}