{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure data consistency?","a":"Blockchain achieves data consistency by adopting distributed ledger technology. It is jointly maintained by multiple parties and uses cryptography to ensure transmission and access security. In a blockchain system, data is stored on multiple nodes, each of which saves a complete ledger. When new data occurs, nodes will incorporate it into their local ledgers and validate it. After validation, the data is bundled into a new block and sent to other nodes for consensus.↵↵During this process, blockchain employs various consistency  models to ensure data consistency. For example, the sequential consistency model requires all nodes to see operations on the same data in the same order, while the"}]}],"pr":"de06a1e8116d38e9cbeb6a6486d3f3b245758b4a36923818e38646f097187c03"}