{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The data structure of Sysvar RecentBlockhashes in the blockchain is as follows:\n\nSysvar RecentBlockhashes is a variable that stores a list of recent block hashes in the blockchain. Each entry in the list contains the following information:\n\n1. Block hash: A 32-byte hash of the block.\n2. Block height: The height of the block in the blockchain.\n3. Block timestamp: The timestamp of the block.\n4. Prev block hash: The hash of the previous block in the chain.\n5. Next block hash: The hash of the next block in the chain.\n\nThe list is typically sorted by the block height in ascending order, with the most recent blocks at the top. This variable is used by the blockchain software to track the recent history of block hashes, which is useful for identifying changes in the network and ensuring the integrity of the blockchain.","a":"Block Header：The block header contains some key information, such as version number (version), previous block address (prev-block),  timestamp (timestamp), nonce (nonce) , and current target hash (current target hash)."}]}],"pr":"ba863f2de1789baf7602f118ef59e807626851a8a307fd4a602ff166836ca45e"}