{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the situations in a blockchain that can lead to failed signing of transaction batches?","a":"Failed transaction signature: Errors during the transaction signature process, such as private key leaks, signature algorithm anomalies, etc., can lead to failed transaction signatures, which  in turn trigger the cutoff condition."}]}],"pr":"50e58be9dc9630a3bc253bc8dbaa3c234fbd07f212005f0f7ef92936651477f6"}