{"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":"bb87ecc8b813b94a6ca1a205c5a78d42c435bfcb0947349e15ceab68120d98d8"}