{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How are blockchains applied in the field of digital currencies?","a":"Transaction Record and  Security: As a distributed ledger technology, blockchain provides a decentralized transaction recording method for digital currencies. Each transaction forms an irreversible record on the blockchain, ensuring the security and transparency of transactions."}]}],"pr":"39cb33148bde77e4a77a6704d837886b6c63d0e3cffd94de95156f09c4ab04bb"}