Blockchain Cross-Chain Transaction Study Guide

Blockchain Cross-Chain Transaction Study Guide

Glossary

Term Definition Blockchain A distributed ledger technology that uses cryptographic methods to link data blocks together to form an immutable data record. Distributed Ledger A database that is shared, replicated, and synchronized between multiple nodes. Smart Contract A piece of code stored on a blockchain that is automatically executed when preset conditions are met. Master Chain A blockchain that coordinates and routes transactions across multiple partitioned blockchains. Partition Blockchain A blockchain that stores a portion of the entire data domain to improve system scalability and throughput. Mixed Chain A blockchain that processes cross-chain transactions that require access to data from multiple partitioned blockchains. Cross-chain Transaction A transaction involving data from multiple blockchains that requires cross-chain interaction to complete. Partition Rule A rule that defines how data is divided into different partitioned blockchains. Transaction Router A module that routes transactions to the corresponding blockchain based on the partition rule. The Query Federator processes queries from clients and routes them to the modules of the corresponding blockchain. The Cross-chain Handler executes the smart contract of cross-chain transactions on the hybrid chain.

Short answer questions

What is the difference between traditional databases and blockchains in terms of data storage? Traditional databases use centralized storage, while blockchains use decentralized storage. The data on the blockchain is shared, replicated, and synchronized by all nodes, and cryptographic methods are used to ensure that the data cannot be tampered with.

What is the role of the main chain in the blockchain system? The main chain acts as a coordinator and transaction router, responsible for routing transactions to the corresponding blockchain for processing according to preset rules.

What is the purpose of the partitioned blockchain? The partitioned blockchain is a solution proposed to solve the scalability and throughput problems of traditional blockchain systems. By dividing data into different blockchains, the overall performance of the system can be improved.

What is a cross-chain transaction? A cross-chain transaction refers to a transaction that requires access to multiple blockchain data to complete. For example, if user A has assets on partitioned blockchain A and user B has assets on partitioned blockchain B, then the transfer of assets between user A and user B requires a cross-chain transaction.

What role does a hybrid chain play in a blockchain system? A hybrid chain is responsible for processing cross-chain transactions that require access to data from multiple partitioned blockchains. It completes transactions by obtaining data from different blockchains and performing corresponding operations.

How does a cross-chain processor work? A cross-chain processor is a smart contract running on a hybrid chain that is responsible for executing cross-chain transactions. It first receives transaction requests from the main chain, then obtains data from different partitioned blockchains based on the partition information, and finally executes the transaction and writes the result to the corresponding blockchain.

How does a blockchain system ensure the security of cross-chain transactions? The blockchain system ensures the security of cross-chain transactions through cryptographic methods, consensus mechanisms, and smart contracts. For example, all transactions need to be verified and confirmed before they can be written to the blockchain, and smart contracts can ensure that transactions are executed according to preset rules.

Briefly describe the process of a blockchain system processing cross-chain transactions.

The client submits a cross-chain transaction request to the main chain.

The main chain routes the transaction to the hybrid chain according to the partition rules.

The cross-chain processor on the hybrid chain receives the transaction request and obtains data from the corresponding blockchain.

The cross-chain processor executes the transaction and writes the result to the corresponding blockchain.

The main chain returns the transaction result to the client.

What is the role of the query coordinator in a blockchain system? The query coordinator is responsible for processing query requests from clients and routing them to the corresponding blockchain for processing.

Compared with traditional centralized databases, what are the advantages of blockchain systems in processing cross-chain transactions? Compared with traditional centralized databases, blockchain systems have the advantages of decentralization, transparency, security, and traceability. These advantages make blockchain systems more suitable for processing cross-chain transactions that require trust and collaboration.

Paper title

Discuss the advantages and disadvantages of different partitioning strategies in blockchain systems and analyze their impact on system performance.

Study how to improve the efficiency and security of cross-chain transactions and explore possible future development directions.

Analyze the application of blockchain technology in supply chain management, and focus on how to use blockchain technology to achieve cross-organizational collaboration and data sharing.

Explore the application of blockchain technology in the field of digital identity authentication, and analyze how it solves the security and privacy issues existing in traditional identity authentication systems.

Study the challenges of blockchain technology to existing laws and regulations, and explore how to establish a sound regulatory system to promote the healthy development of blockchain technology.