{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The structure of a blockchain is composed of blocks, which are linked together in a linear chain. Each block contains a set of transactions that have been verified and processed. As new transactions are added to the blockchain, new blocks are created and added to the end of the chain, forming a continuous, growing chain of blocks. The blocks in a blockchain are encrypted and secured by a consensus mechanism, which ensures the integrity and security of the entire chain.","a":"The structure of a blockchain is composed of a chain of individual blocks. Each block contains two main parts: the block header and the block body. The block header stores structured data with a size of 80 bytes, ensuring the order and security between blocks. The block body records all transaction information within the block's mining time, stored in a tree-like structure, requiring more space. According to different application scenarios, blockchains can be divided into public chains, private chains, and consortium chains, etc., which differ in consensus mechanisms, security mechanisms, and storage mechanisms. In  summary, the core of the blockchain structure is to ensure the security, reliability, and traceability of data to achieve decentralized network operation."}]}],"pr":"f8aa2260d6d271dc611461b32d3b66f8a25d8ace19a4552367754f6aa2c89bb4"}