区块链可以无限增加吗为什么,区块链可以无限增加吗知乎

Ⅰ What is blockchain and what is digital currency

Blockchain is an important concept of Bitcoin and is essentially a decentralized database.
At the same time, as the underlying technology of Bitcoin, it is a series of data blocks generated using cryptographic methods. Each data block contains a batch of Bitcoin network transaction information, which is used to verify the validity of its information. (anti-counterfeiting) and generate the next block. Digital currency is an unregulated, digital currency that is usually issued and managed by developers and accepted and used by members of a specific virtual community. The European Banking Authority defines virtual currency as: a digital representation of value that is not issued by a central bank or authority and is not linked to a legal currency, but which, because it is accepted by the public, can be used as a means of payment or can be transferred, stored or traded electronically. .
The content of this article comes from: China Law Publishing House's "Complete Knowledge of Legal Life Common Sense Series"

II Will blockchain technology increase the storage requirements of the client infinitely

I also have this question. Each mining machine records information during the mining process. That doesn’t mean that the information is constantly increasing. In theory, the storage of the mining machine will increase wirelessly. Who can afford it?

Ⅲ Block What are the applications in the blockchain industry?

Take the tourism industry as an example. Blockchain applications are mainly concentrated in travel, travel community reviews, digital identity management, credit consumption management, tracking pilots’ professional certificates and qualifications, hotels and Airline loyalty programs, reservation management, and consumption points management are several application areas. In addition, with the development of blockchain, many related top domain names have been registered, which has had a relatively large impact on the domain name industry. In addition, blockchain also has applications in finance, games, entertainment and other fields.

IV Impact of the continuous issuance of blockchain currency

In the short term, appropriate additional issuance of currency will increase currency liquidity and stimulate the economy. In the long run, additional currency issuance will lead to inflation. Inflation is related to the consumer price index (CPI). When prices rise, money becomes less valuable, causing more and more people to be unwilling to consume. At this time, people's demand for money decreases. At this time, the government may run a fiscal deficit and need to lower interest rates to stimulate the economy. This is a cycle that will lead to a bubble economy. The final result is that the entire economy is vulnerable to crisis.

IV What is the development trend of blockchain and the future development trend of blockchain

The dual-layer policy and market drive the blockchain industry with broad development prospects
The dual-layer policy and market Driven by the epidemic, China's blockchain-related industries are expected to move from reality to reality
In the context of the rapid development of blockchain, China conforms to the needs of globalization, keeps up with international pace, and actively promotes research and standardization in domestic blockchain-related fields. formulation and industrial development. Compared with the background of increasingly strict supervision of digital currencies such as Bitcoin, support and encouragement for blockchain technology has reached a global consensus, and domestic blockchain technology will also receive national and local policies in the next few years. support. In policy andDriven by the dual-layer market, blockchain-related industries are expected to move from reality to reality, and blockchain technology will accelerate the exploration of possible application scenarios.
Forecast of global blockchain market size
According to the "In-depth Analysis Report on Business Model Innovation and Investment Opportunities in the Blockchain Industry" released by the Qianzhan Industry Research Institute, the global blockchain market size is expected to increase from 2017 to 2017. It will increase from US$411.5 million in 2022 to US$7.6837 billion in 2022, equivalent to a compound annual growth rate of 79.6%. Given the wide range of applications for distributed ledgers and the rising market value of cryptocurrencies, there is a strong need to improve transparency, security, efficiency and streamline processes, as well as blockchain as a service (
BaaS). As a hot topic of development, the blockchain market will expand rapidly. In addition, communication services, international trade, supply chain management, program platforms, payments, smart contracts, digital identity verification, etc. also urgently need blockchain technology and will create a large number of growth opportunities.
Blockchain, as an integrated application of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other technologies, has become a hot topic of research and discussion by international organizations such as the United Nations and the International Monetary Fund as well as many national governments in recent years. The industry has also increased investment. At present, the application of blockchain has extended to many fields such as the Internet of Things, intelligent manufacturing, supply chain management, and digital asset transactions, and will bring new opportunities to the development of new generation information technologies such as cloud computing, big data, and mobile Internet. , has the ability to trigger a new round of technological innovation and industrial change.
By 2022, the payment sector may occupy the largest share of the blockchain market
Relying on blockchain technology, instant payment of assets can be realized, which not only has the characteristics of non-tampering and digital identity verification, but also can provide Financial institutions and banks significantly save settlement costs. In addition, blockchain makes it possible to automate payments, eliminating the need for middlemen, saving labor costs and time for buyers and sellers. Thanks to the many advantages mentioned above, it is expected that the payment sector will be the most important segment in the entire blockchain market.
The fastest growing region will be Asia-Pacific
Blockchain service providers in the Asia-Pacific region are good at designing and developing user-friendly, cost-saving, and fast cryptocurrency platforms, extending blockchain to multiple Industry application tentacles. Both large enterprises and small and medium-sized enterprises are actively seeking venture financing and investing in the research and development of cutting-edge blockchain technology. In addition, the real estate industry in some countries in the Asia-Pacific region is expected to rapidly transform from semi-transparent to fully transparent, which will also help enhance the development prospects of blockchain in the Asia-Pacific region.

VI Is the role of blockchain infinitely amplified

Any technology may be amplified or underestimated when it is first used. Personally, I feel that the current blockchain is still a bit amplified.

Ⅶ What to do if the blockchain information is getting larger and larger

The increase in blockchain network information will inevitably require expansion, but it is not limited to BTC public chain, no matter which one The public chain has developed toAt a certain stage, expansion technology is required to support the network. Therefore, it can be said that expansion is an essential part of the implementation of the blockchain solution.
Blockchain expansion is a general trend, but there are differences in specific operations. The industry has proposed multiple expansion solutions for different levels of the blockchain architecture: First, optimize the data transmission protocol for the bottom layer of blockchain data. , without changing the upper-layer architecture of the blockchain, to improve scalability, such as the blockchain 0-layer expansion plan Bloxroute; the second is to change the data structure and consensus algorithm for the basic protocol of the blockchain to improve scalability, such as DAG (directed and undirected) Ring graph), sharding, DPOS algorithm, etc.; the third is for the application level, such as side chains, sub-chains, state channels-Lightning Network and other solutions, to transfer some on-chain transactions to off-chain execution to reduce on-chain processing pressure and improve Overall efficiency.

VIII Will blockchain data continue to grow indefinitely

Hello, of course it will
Blockchain is a distributed data storage, point-to-point transmission, consensus mechanism, and encryption New application models of computer technology such as algorithms. Blockchain is an important concept of Bitcoin. It is essentially a decentralized database. As the underlying technology of Bitcoin, it is a series of data blocks generated using cryptographic methods. Each The data block contains information about a batch of Bitcoin network transactions and is used to verify the validity of the information (anti-counterfeiting) and generate the next block. In fact, the original English version of the Bitcoin white paper [1] does not appear in the word blockchain, but uses chain of blocks. In the earliest Chinese translation of the Bitcoin white paper [2], chain of blocks was translated into blockchain. This is the earliest time when the Chinese word "blockchain" appeared.

Ⅸ What to do if the blockchain information is getting larger and larger

Over the past few years, with the vigorous development of Bitcoin, the number of Bitcoin transactions has increased, and the size of a single block has There is a maximum limit of 1MB, so the free space in the block becomes smaller and smaller. As shown in the figure, the median block size doubled in 2015, growing rapidly from 292KB in January to 749KB in December.

Bitcoin block size

The issue of expansion received full attention and discussion in 2015. Around June 2015, many expansion plans were successively launched, represented by BIP100, BIP101, BIP102, BIP109, BIP248 and other plans (Table X).

Although various plans have been proposed, they can basically be divided into two categories: the long-term rule-based faction and the short-term shelving faction. The long-term allocation is ideal and rule-based. It is finalized in one go and no more fussing. The typical representative is BIP101/103, which sets a growth rule and no longer adjusts. The short-termists believe that the future is unpredictable and fixed rules are too simple and violent to solve problems. They hope to set up a short-term and multi-year plan to avoid it for the time being and put it aside until the future solution.However, due to the complexity of the voting process, it was later simplified to BIP102/109, etc., while BIP248 was postponed to 2020, and has simply doubled in recent years.

Since June 2015, after more than half a year of extensive and repeated discussions, the long-term rule-based faction has basically been completely defeated. After Pieter Wuille proposed Segregated Witness at the Bitcoin Hong Kong Scaling Conference in December 2015, the scaling issue has even been simplified to only an upgrade to 2MB, but it has been mired in debate about the implementation time.

A seemingly simple expansion technical issue has caused the Bitcoin community to spend more than half a year, hold several global technical conferences, and engage in countless private wars of words, but there is still no clear conclusion. The profound reason behind this is that raising the block limit value cannot truly solve the Bitcoin expansion problem. Scaling issue

In general, based on the understanding of the Bitcoin network, there are two divisions: clearing system and cash system.

Clearing system

The Bitcoin blockchain is a global, distributed, limited-capacity, expensive system. The value content of each transaction is different. When the block capacity is not enough, we should ensure that high-value transactions enter the block. High-value transactions have the willingness and ability to pay high enough network fees to obtain blocks with high enough priority.

As Bitcoin prospers, the number of transactions will become larger and larger. The limited block capacity will make it impossible for low-value transactions (such as sending 1 cent) to be included in the block because low-value transactions cannot be included in the block. May pay high network fees. Then the network degenerated into a clearing system, low-value transactions were driven out, and these transactions were replaced by third-party accounting systems.

Before the emergence of the Lightning Network, third-party accounting systems were mainly off-chain wallet providers. Users trust a third-party wallet platform and deposit Bitcoins into it. Transfers between users on the same platform only bring about changes in account balances and do not generate Bitcoin transactions.

Cash system

The cash system means that all transactions should enter the block. When the block capacity is not enough, the block size limit should be increased in time to expand the system. Transaction blocking may occur in the short term, but in the long run all transactions should be able to be added to the block. Everyone enjoys the tremendous convenience and advantages brought by the Bitcoin system.

X What is blockchain expansion

Expansion is when a container or carrier is not enough to support or carry the needs of existing things, we A means of alleviating the pressure on the current container or load by expanding the capacity of the container or the volume of the load to meet the growing demand.
At the beginning of the birth of Bitcoin, Bitcoin founder Satoshi Nakamoto did not specifically limit the size of blocks. The maximum block size could reach 32MB. At that time, the average block size was 1~2KB.
hour bitsThere are few Bitcoin users and the transaction volume is not that large, which will not cause block congestion. However, with the linear rise in Bitcoin prices from 2013 to the present, more and more users have caused Bitcoin network congestion and rising user transaction fees. gradually emerged.
Up to now, there is a backlog of hundreds of thousands of transactions on the Bitcoin blockchain at its peak. The average transaction fee of Bitcoin has increased 376 times since September 2010. The processing speed of 7 transactions per second is obviously too high. To meet user needs, the Bitcoin community began to explore how to “expand” Bitcoin.
By modifying the underlying code of Bitcoin, the purpose of improving transaction processing capabilities is achieved.
There are two development and design solutions for Bitcoin expansion itself, namely first-layer and second-layer expansion technologies.
· The first layer of expansion technology is to improve the blockchain itself, making the blockchain itself faster and larger in capacity. In general, it is to change the content of the consensus part of the blockchain.
· The purpose of the second-layer expansion technology is to move calculations off-chain, that is, to solve problems through side-chain technology.
Expansion protocol and outcome
Expansion protocol generally requires the support of miners, and can be roughly divided into methods such as modifying the block size, soft fork, hard fork, and segregated witness.
Take Bitcoin as an example:
Bitcoin is now split into the large block Bitcoin Cash (BCH) and Segregated Witness. Segregated Witness is now recognized as Bitcoin in the market, and the big block coin is named Bitcoin Cash. It is foreseeable that in the future development direction, Bitcoin will be dominated by off-chain transactions. Including Lightning Network and side chains. These two new things are currently immature, but many people have high hopes.
Bitcoin will develop a large number of Segregated Witness transactions and make more derivative technologies based on Segregated Witness. It is most likely that technology will drive Bitcoin forward.
Bitcoin Cash will focus on on-chain transactions, focus on developing currency functions, reduce transaction friction as the main method, and profit from a wider range of on-chain users as the main development direction.
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