{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain handle transaction fees and payment methods in account interactions?","a":"Cryptographic protection: Blockchain uses encryption algorithms (such as SHA-256) and a pair of private and public keys to ensure that only the transaction parties and nodes within the blockchain  network can view and process transaction information. This protects users' privacy and asset security."}]}],"pr":"a6f6a731e6de4d465d3eb75e077c29125242a480e44263005cdb6bccfb53368b"}