{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the requirements for validators to operate during a blockchain upgrade?","a":"Deep understanding of blockchain technology: As a validator, it is essential to  have a deep understanding of the basic principles, technical architecture, and consensus mechanisms of blockchain, so as to correctly understand and respond to various changes during the upgrade process."}]}],"pr":"9947f802e122ed52e1e4735310f507edd9e6fc7417e6c6777503a90f0a6a258b"}