{"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":"6f7330daf959195c2e638df41054c32088d2854540789be653ae4222cabaf2d1"}