{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What does block reconstruction mean in blockchain?","a":"Block reconstruction in blockchain refers to the process of connecting  individual data units (blocks) in a time-sequenced manner within a blockchain network, using a certain consensus algorithm and encryption technology, to form a tamper-proof and decentralized distributed database. Block reconstruction ensures the security and reliability of blockchain data, providing users with a trusted data storage and transmission method. In this process, each block contains the hash value of the previous block, and miners verify transactions and create new blocks by solving complex mathematical problems. Once a new block is added to the blockchain, its data becomes difficult to tamper with, ensuring the authenticity and integrity of the entire blockchain data."}]}],"pr":"c4852269835e6f456f77d5f02695d4d8eb8b7d78c29eb0569f01dec7019025bd"}