{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology improve the efficiency of big data storage and processing?","a":"Consensus Mechanism: Blockchain employs a consensus mechanism to  validate and confirm transactions, ensuring data accuracy and reducing the risk of data manipulation."}]}],"pr":"1d0b89b0ec3bed830ef3757b1fa4ea55bbf2487bf0b620914c6b09128b6366ec"}