{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do digital currencies in blockchain achieve decentralized issuance and management?","a":"Distributed ledger technology: Blockchain adopts distributed ledger technology, recording all transactions in a decentralized database. This means that there is no centralized authoritative  institution to control the issuance and transaction of currency, thereby reducing the risks of tampering and manipulation of currency."}]}],"pr":"2469494e1d56e7fd89ec20e881cddd2d1a1b0586b532200656f31bb256a2c5c3"}