{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the main sources of failure risk for blockchain upgrades?","a":"Network instability: The instability of the network may cause problems such as delayed or missed blocks, which can affect the upgrade process and lead to failure."}]}],"pr":"ea0b48b79976edbff87099171fa7f32f09c0a7917827b7c9c69a8d9595f91d82"}