{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Why do blockchain transactions need to include the latest block hash?","a":"Blockchain transactions require inclusion of the latest block hash, mainly because the hash function plays a crucial role in the blockchain system. The hash function encrypts and compresses transaction information into a simple hash value of fixed bytes, serving as an identifier for the block and ensuring the immutability of transaction information in the blockchain. Including the latest block hash in transactions facilitates verification of transaction validity, construction of the Merkle tree, and implementation of connections between adjacent blocks. In addition, the hash function also plays an important role in transaction  validation, digital signatures, and other aspects. By including the latest block hash, the blockchain system can ensure the correctness of transaction order, facilitating consensus and data synchronization between nodes."}]}],"pr":"badfd302b80226027b245cd3005b7cd89ff0af06d522bf5bd03b48afbb519828"}