Research Guide for Blockchain Processing Systems

Glossary

Term DefinitionsBlockchain is a distributed database consisting of multiple blocks, each containing multiple transaction records and linked together through cryptographic technology. Block is the basic unit of blockchain, containing transaction data, timestamp, hash value and other information. Transaction is the value transfer behavior on the blockchain, such as transfer, payment, etc. Consensus Algorithm is an algorithm used to ensure the consistency of blockchain data, such as proof of work (PoW), proof of stake (PoS), etc. Proof of Work (PoW) is a consensus algorithm that competes for the right to generate blocks through computational difficulties, such as the algorithm used by Bitcoin. Mining refers to the process of running computing equipment to perform proof of work to verify transactions and generate new blocks. Miner refers to an individual or organization that participates in mining and receives block rewards. Permission refers to the permission to access and operate data in the blockchain network, such as read permission, write permission, etc. Authorization refers to the process of granting a specific user or entity the right to access and operate a specific resource. Sharding is a technology that divides blockchain data into multiple parts and processes them by different nodes to improve system throughput. Smart Contract is a computer program stored on the blockchain and can be executed automatically, used to implement decentralized applications.

Short answer questions

What is a permission based blockchain network? How is it different from a public chain?

How does the blockchain processing system mentioned in this article improve processing performance? Please list at least two methods.

What is the role of the block generation sequence adjuster mentioned in the article? How is it implemented?

Explain the role of the "block size adjuster" mentioned in the article and how it works.

How does the blockchain processing system mentioned in this article ensure the security of transactions?

Explain the concept of "instant transaction" and how it is implemented in this system.

What role does the "temporary pool" mentioned in this article play in instant transaction processing?

Why does the transaction verification phase still need to check the balance of the sender's account even if the receiver's account already has enough balance in it?

Explain the concept of "distributed ledger" and its relationship with blockchain.

How does the system mentioned in the article handle transactions between multiple blockchain networks?

Short answer questions

A permissioned blockchain network is a network that requires authorization to join, and only nodes with permission can participate in transaction verification and data maintenance. In contrast, a public chain is a blockchain network that anyone can join and participate in freely.

The system improves processing performance by adjusting the block size and block generation cycle. For example, increasing the block size can accommodate more transactions, thereby increasing throughput; shortening the block generation cycle can speed up transaction confirmation.

The block generation order adjuster is used to ensure that all miners have a fair chance to generate blocks and prevent unfairness caused by the concentration of computing power. It does this by limiting the number of blocks generated by each miner in a specific time period.

The block size adjuster dynamically adjusts the block size according to the network load. When the network is congested, it increases the block size to accommodate more transactions; when the network is idle, it decreases the block size to save storage space.

The system ensures transaction security by using cryptography and consensus algorithms. Each transaction is cryptographically signed and verified by multiple nodes to prevent tampering and fraud.

Instant transactions are transactions that are confirmed before they are added to the blockchain. In this system, the receiver receives confirmation information during the transaction verification phase without waiting for block confirmation.

The temporary pool is used to store transactions that have been verified but not yet added to the blockchain. In instant transaction processing, transactions are first added to the temporary pool so that the receiver receives confirmation information immediately.

Even if the receiver's account already has enough balance, the transaction verification phase still needs to check the balance of the sender's account to prevent double-spending attacks.

A distributed ledger is a database maintained by multiple participants, and data records are distributed and stored on various nodes in the network. Blockchain is a special distributed ledger that uses cryptography and consensus algorithms to ensure data security and consistency.

The system uses a multi-layer wallet architecture to process transactions between multiple blockchain networks. Each wallet corresponds to a blockchain network, and users can use the same set of keys to conduct transactions on different networks.

Paper Title

Discuss the advantages and disadvantages of permissioned blockchain networks and analyze their applicable scenarios in practical applications.

Compare and contrast the blockchain processing system mentioned in the paper with other technologies that improve blockchain performance, such as lightning networks and side chains.

Analyze the opportunities and challenges of blockchain technology in the financial field and explore its potential impact on the traditional financial system.

Discuss the application of blockchain technology in supply chain management and analyze how it can improve supply chain transparency and efficiency.

Analyze the potential risks and challenges brought about by the development of blockchain technology from an ethical perspective and propose corresponding response strategies.