{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is a nonce in a blockchain?","a":"In blockchain, Nonce  (Number used once) is a one-time digital number used in the field of cryptography to represent a unique number that is only used in specific transactions or events. In blockchain technology, Nonce is mainly applied in the Proof of Work (PoW) consensus algorithm, which ensures the security and consistency of the blockchain network.\n\nIn the Bitcoin system, Nonce is an important parameter used for generating Proof of Work. Each block header contains a Nonce value, which is obtained by continuously calculating the hash of the block header until a specific condition is met."}]}],"pr":"ba7e6206faa25062720a03bf08eeb624f19731a804522f3ef3b91affd33fffaf"}