{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the possible bumpy paths for a blockchain upgrade?","a":"Technical difficulties: During the upgrade process, technical bottlenecks may be encountered, such as inability to achieve higher performance, faster transaction speed, and better scalability. This may lead to  the failure or delay of the blockchain upgrade."}]}],"pr":"f008b40684137aa7193196cc679c56e5cef87b1cec6747de001887e7958aabc3"}