{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How dangerous are blockchain upgrades?","a":"Data loss: During the  blockchain upgrading process, if an error occurs, it may lead to the partial or complete loss of data. This will cause the blockchain to lose its trust foundation and affect its value."}]}],"pr":"0296924c28e5dc6e84a245b7bbc7fdb5eaa7942c892b518c453c3f8023aa6268"}