{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does each block in a blockchain monitor the signature situation of validators?","a":"Block structure: Each block contains a certain number of transaction records, which have been signed by the validators. The block header (Block Header) includes information such as the hash value of the previous block, the number of transactions in the current block, and the timestamp.  After miners calculate and verify this information, they ensure the sequence and integrity of the blocks."}]}],"pr":"55db3e2e59c57d1f9b43af2b8d160c3dec55cfb5cb54f895feb8f383d6a67f2b"}