{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is a persistent nonce in a blockchain?","a":"The persistence nonce (Number used once) in blockchain is a technology used to ensure the uniqueness and sequentiality of transaction data in the blockchain network. As a digital  identifier, nonce serves as a globally unique identifier in transactions to ensure accurate recording and sorting of each transaction in the blockchain. The main purpose of persistent nonce is to prevent fraudulent behaviors such as double-spending while ensuring the integrity and security of transaction data. In blockchain systems, persistent nonce is usually combined with other technologies such as transaction hash to achieve efficient verification and processing of transactions."}]}],"pr":"9ff9464ce2669f869d1c3f1e0240d30eca48cfb4dacb60721b3026514e45fbe9"}