{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology solve data privacy and security issues?","a":"Consensus mechanism：Blockchain networks operate with a consensus mechanism, which requires multiple participants to agree  on the validity of a transaction"}]}],"pr":"b9959dd2e97e49e77a7f10f3ae7584860ff7d0723e23848b9d902604d86ba464"}