{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the cases of failed message verification in blockchain delegation?","a":"Signature verification failure: In blockchain transactions, signatures are a key aspect to ensure transaction security. If the signature verification fails, it indicates that there  are issues with the authenticity and effectiveness of the transaction, which may lead to the transaction being rejected."}]}],"pr":"dfa8cff311a2ea7c134a5aee14a1f0d76ad78ac7c856216950c43a9fe5282e8c"}