{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the block data of a blockchain stored?","a":"The block data of a blockchain is stored in a distributed manner on various nodes in the network. Each node saves a complete copy of the blockchain ledger, where the block data is linked in chronological order, forming a continuously growing chain. These nodes jointly maintain the data consistency and security of the blockchain. The blockchain employs specific data structures and methods to ensure that data cannot be tampered with, thereby increasing the credibility of the data.↵↵Blockchain nodes use specific databases, such as independent and distributed databases like LevelDB, RocksDB, and MySQL, to store block data and state data. These databases act as intermediaries,  making it more friendly for blockchain nodes to access and manage the data."}]}],"pr":"ece174cb37004f06e3d49215963024a7d407aefe083a308763e75f8de923ce7e"}