{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the specific settings for data synchronization and submission in a blockchain database?","a":"Data Synchronization Method: Data synchronization in blockchain databases  can be achieved through replication, binlog file synchronization, third-party synchronization tools, etc. Replication can be implemented through master-slave database architecture, which copies data from the master database to the slave database."}]}],"pr":"71cc6133011fe63cc252275e4de56c13825b5fe08ce54cbd5d65b1aa7a51c2b3"}