{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does the blockchain upgrade module achieve storage migration?","a":"The blockchain upgrade module achieves storage migration through the following steps: First, when a  new block is generated, the data of the original block is backed up and migrated. During the backup process, the new block stores the data of the original block in accordance with the timestamp and sequence. At the same time, the new block inherits the core characteristics of the consensus mechanism, security mechanism, and storage mechanism of the original block. To ensure the consistency and integrity of the data during the migration process, distributed ledger technology is usually adopted to enable all nodes in the network to participate in the data migration, and the correctness of the migration process is ensured through the consensus mechanism.↵↵Secondly, when switching between the new and old blocks, it is necessary to perform operations on all nodes in the network, such as updating the block header, updating the block reward, and updating the pool of unconfirmed transactions. These operations ensure the smooth transition between blocks and maintain the overall stability and"}]}],"pr":"f6671d009854143ff8299266dcf6aff1bbd017c4797d9ab158001a91387b0b2c"}