Research on the Blockchain Data Block Recording Method

Research on the Blockchain Data Block Recording Method

Glossary

Term Definition Blockchain is a distributed database that connects data blocks into a chain in chronological order, with the characteristics of decentralization, immutability, security and transparency. Data Block is the basic unit of blockchain, containing transaction information, timestamp, hash value and other data. Branch Blockchain divides the blockchain into multiple parallel chains to improve data processing efficiency. Accounting Node is a node that participates in blockchain data recording and verification. Leader Accounting Node is a node elected from accounting nodes that is responsible for packaging transaction information and generating data blocks. Consensus Mechanism is a mechanism that ensures that all accounting nodes reach a consensus on data blocks. Common ones include proof of work (PoW) and proof of stake (PoS). Hash Value is a digital fingerprint of a data block calculated by a hash function, which is used to verify the integrity of the data block. Merkle Tree is a binary tree structure that is used to efficiently verify the integrity of transaction information in a data block. Timestamp records the creation time of a data block, which is used to ensure the timeliness of blockchain data. Signature uses a private key to encrypt a data block, which is used to verify the source and authenticity of the data block.

Short answer questions.

What is a branch blockchain, and how is it different from a sub-blockchain?

What role does the dominant accounting node play in the blockchain data recording process?

Explain the role of the data block hash value and Merkle root.

Why do you need to sign a data block?

How to verify the validity of a data block signature?

Briefly describe the main problems solved by this patent technology.

What method does this patent technology use to improve the efficiency of blockchain data recording?

Explain the concept and role of "occupied status word" in this patent technology.

How does this patent technology prevent repeated transactions?

In addition to the fields mentioned in the text, what other information can be included in the data block header?

Short answer questions answers

A branch blockchain is a blockchain that is divided into multiple parallel chains, and the same group of accounting nodes are used to record data to improve data processing efficiency. In contrast, a sub-blockchain is a blockchain that is recorded by different accounting node groups, usually used to process different business logics.

The leading accounting node is responsible for packaging transaction information, generating new data blocks, and broadcasting them to other accounting nodes for verification and recording.

The data block hash value is used to verify the integrity of the data block and ensure that the data block has not been tampered with. The Merkle root is the hash value of the root node of the Merkle tree, which is used to efficiently verify the integrity of all transaction information in the data block.

The data block is signed to verify the source and authenticity of the data block and ensure that the data block is generated by an authorized node.

The signature is decrypted using the public key of the leading accounting node, and the decryption result is compared with the hash value of the data block. If consistent, the signature is valid.

This patented technology mainly solves the problem of low data recording efficiency in existing blockchain technology, especially when it is necessary to wait for the consensus of the previous data block to be completed.

This patented technology uses branch blockchain technology to record data blocks on an idle branch blockchain that has completed consensus, avoiding waiting for the consensus process of the previous data block, thereby improving data recording efficiency.

The "occupancy status word" is used to identify whether the output item in the transaction information has been referenced by other transaction information. If the possession status word of an output item is "occupied", it means that the output item has been referenced by other transaction information and cannot be used again, thereby preventing repeated transactions.

This patented technology determines whether there is repeated transaction behavior by checking the possession status word of the output item referenced by the input item in the transaction information.

In addition to the fields mentioned in the text, the data block header can also contain information such as version number, difficulty value, random number, etc., depending on the different blockchain system designs.

Essay question

Instructions: Please answer the following questions in complete paragraphs based on your understanding.

Compare and contrast the differences in data recording efficiency between the traditional single-chain structure and the multi-branch structure proposed in this patent in detail, and analyze their advantages and disadvantages.

Discuss the election mechanism of the dominant accounting node in this patented technology, and analyze the impact of different election mechanisms on system performance and security.

Explain how this patented technology is applied to the electronic invoice circulation scenario, and analyze its advantages and limitations.

Explore the effectiveness of this patented technology in preventing double payment attacks, and compare it with other common double payment attack defense mechanisms.

Analyze the challenges that this patented technology may face in practical applications, such as data synchronization, node maliciousness, etc., and propose corresponding solutions.