Bitcoin Mining Improved Algorithm Study Guide

Bitcoin Mining Improved Algorithm Study Guide

Short Answer Questions

What are the main disadvantages of the traditional Bitcoin mining algorithm?

The main disadvantage of the traditional Bitcoin mining algorithm is that the difficulty increases over time, resulting in high energy consumption and limiting the data recording capacity of the blockchain.

How does the improved algorithm proposed in the present invention solve the shortcomings of the traditional algorithm?

The present invention improves mining efficiency and capacity by reducing the difficulty of mining within a specific time period, while ensuring system security through a malicious fork detection mechanism.

What is the difference between "malicious forks" and "normal forks"?

A malicious fork means that all blocks on the forked branch are generated by the same miner with the intention of manipulating the blockchain. A normal fork is caused by blocks generated by different miners and is part of the normal operation of the blockchain.

How does the algorithm proposed in the present invention detect malicious forks?

The present invention determines whether it is a malicious fork by checking whether all blocks on the forked branch are generated by the same miner.

What is the role of the "miner blockchain" in the present invention?

The miner blockchain is a chain independent of the main blockchain, which is used to record data related to malicious fork detection, such as malicious fork information found, reduced mining difficulty index, etc.

What information does "FeedBlock" contain?

A FeedBlock contains a timestamp, the hash value of the previous FeedBlock, the address of the main blockchain block that was recently checked, the reduced mining difficulty index, the malicious fork detection flag, the malicious miner address (if any), and its own hash value.

What measures will the improved algorithm take when a malicious fork is detected?

When a malicious fork is detected, the improved algorithm disconnects the malicious fork branch and restores the mining difficulty to the default difficulty for a period of time before resuming the reduction.

How is the improved mining difficulty calculated?

The improved mining difficulty is dynamically adjusted according to the actual time of the most recent block generation to maintain the average block speed.

What is the impact of the improved algorithm on energy consumption?

The improved algorithm can reduce energy consumption when reducing the mining difficulty, but consumes more energy when restoring the default difficulty.

In addition to Bitcoin, what other fields can the improved algorithm be applied to?

The principle of the improved algorithm can be applied to other cryptocurrencies and distributed systems that require consensus mechanisms.

Thesis Title

Discuss the advantages and disadvantages of traditional Bitcoin mining algorithms and analyze their impact on blockchain performance and security.

Detailed explanation of the malicious fork detection mechanism proposed in this invention and evaluation of its effectiveness in different attack scenarios.

Comparative analysis of the differences between this invention and other mining algorithms in terms of performance, security, energy consumption, etc.

Explore the application prospects of the miner blockchain proposed in this invention and its impact on decentralized networks.

Design an experiment to simulate the impact of different mining difficulties and malicious fork attacks on the performance of the improved algorithm.

Keyword explanation

Keyword explanation Bitcoin is a decentralized cryptocurrency that uses blockchain technology to verify and record transactions. Mining is the process of verifying transactions and adding them to the blockchain by solving computational problems, and miners are rewarded. The blockchain consists of a linked list of multiple blocks, each of which contains transaction data and the hash value of the previous block. Fork When two or more miners generate valid blocks at the same time, the blockchain will fork, and only one chain will be considered a valid chain in the end. Malicious fork refers to the attacker deliberately creating a fork in an attempt to manipulate the blockchain or conduct a double payment attack. Mining Difficulty The difficulty index of the mining algorithm determines the amount of computation required for miners to find a valid block. Miner Blockchain The chain proposed by the present invention, which is independent of the main blockchain, is used to record data related to malicious fork detection. FeedBlock The block on the miner blockchain contains malicious fork detection information, reduced mining difficulty index, etc. Difficulty Target A threshold in the mining algorithm that the block hash value found by the miner must be less than in order to be accepted as a valid block. Nonce The random number that miners try continuously during the mining process, used to adjust the block hash value.