{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the main risks involved in the process of upgrading a blockchain version?","a":"Technical  risks: During the upgrade process, there may be unresolvable technical difficulties, code vulnerabilities, and decreases in security, which could lead to instability in the entire blockchain system."}]}],"pr":"14dadb90e41fd2b378b80a981cfde70bbf29dca515516878fa67ee5be994e969"}