{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology ensure personal privacy?","a":"Merkle Tree: Merkle Tree is used in blockchain to quickly verify the integrity of transaction data without exposing the specific  content of the transaction, which helps protect personal privacy."}]}],"pr":"1b753cd2d1b910f4165f45adda4d306330ae841eb86fde87dd5dcaac3eca2d4d"}