{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"To solve the performance issue of validation nodes falling behind the network due to the overhead of storing account data, what measures should be taken?","a":"Optimize account data  storage structure: Improve the way and structure of data storage to reduce the storage overhead and thereby increase the performance of verification nodes."}]}],"pr":"05930d6a67c73a1adccfca6e809e0e19318079ff26ff5635397ef483c6bb9aa0"}