{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do transactions in blockchain facilitate asset transfer?","a":"Signature: The sender uses their private key  to sign the transaction data to ensure the legality and security of the transaction."}]}],"pr":"d6ab66eb023c4d0a9c8a4f566bf1192a9162ca98f5ed048dbe279f42fdde06b3"}