区块链的底层公链是什么,区块链,尤其是公链技术,想要真正落地

区块链作为一种新型的技术，其底层公链技术受到越来越多的关注。区块链的底层公链技术，是一种分布式数据库技术，它将信息存储在网络中的不同节点上，使用加密技术保护数据，可以有效地保护数据的安全性。

区块链的底层公链技术，拥有非常高的安全性，其中包括了去中心化、共识机制、不可篡改、可追溯性等特点。其中，去中心化的特点可以有效地防止数据泄露，而共识机制则可以更好地保障数据的安全性，不可篡改的特点则可以有效防止数据被篡改，而可追溯性的特点则可以有效地追溯数据的来源。

此外，区块链的底层公链技术还具有节点可靠性、可扩展性、智能合约等特点。节点可靠性可以有效地保证数据传输的可靠性，而可扩展性则可以有效地满足不同的需求，而智能合约则可以有效地实现自动化的交易。

因此，区块链的底层公链技术具有高度的安全性、可靠性、可扩展性和智能合约等特点，是一种非常可靠的数据存储技术，可以有效地保护数据的安全性。区块链的底层公链技术正在被越来越多的行业所采用，从而实现了更安全、更高效的数据存储。

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Ⅰ What are the three major public chains of blockchain?

Public chain, the abbreviation of public chain, means that anyone in the world can read it, and anyone can send transactions and Transactions can be effectively confirmed on a blockchain where anyone can participate in the consensus process.

1. The top three public chains in the world
BTC, ETH, and EOS (by market capitalization) are three heavyweight products, representing Blockchain 1.0, Blockchain 2.0 and Blockchain 3.0 respectively. Three stage.

1. Bitcoin BTC (Blockchain 1.0)
Bitcoin has emerged as a new type of digital currency and global payment network since its birth in 2009. BTC is also the most successful and mature application of blockchain. , now in many situations, BTC is much more famous than blockchain.

2. Ethereum ETH (Blockchain 2.0)
In layman’s terms, Ethereum is an open source platform digital currency and blockchain platform that provides developers with a platform to build and publish applications on the blockchain. . Ethereum can program, decentralize, guarantee, trade anything, vote domain names, financial exchanges, crowdfunding, company management contracts and most agreements, intellectual property, and hardware-integrated smart assets, etc.

3. Yuzu EOS (Blockchain 3.0)
EOS appears as an enterprise-level blockchain operating system based on Bitcoin and Ethereum, which is easier to use and more powerful than the former. EOS provides all application developers with many functions such as database account permission settings, execution scheduling authentication, and network communication.

2. The world's three major exchange public chains: Huobi Chain, Binance Chain, and OKEx Chain OKChain
1. Developed by Huobi Chain, the world's largest trading platform, Huobi Chain is An independently innovative supervised blockchain operating system for the financial field, based on blockchain global asset digitization and financial market infrastructure. At the same time, based on the consideration of injecting the long-term value of HT into a unified value carrier, HT will serve as the only underlying token of the Huobi public chain.
2. Developed by Binance, the world's second largest trading platform, Binance Chain started early in application and is currently mainly circulated on DEX and asset chains. Binance Chain is a digital asset creation and exchange platform, with BNB as the main chain token
3. Developed by OKEx, the world's third largest trading platform, OKChain is a more scalable, high-transaction processing capability trading and smart contract platform, OKChain Developed based on Cosmos-SDK, the consensus uses DPOS. OKB is the underlying token of the OKEx ecosystem.

Ⅱ What are the three major public chains of blockchain

The three major public chains of blockchain refer to BTC, ETH, and ADA
The public chains of blockchain are also It is called a blockchain shared chain, a public chainThis means that anyone can read the data in the system at any time. Public chains are often completely decentralized. This feature prevents everyone and institutions from controlling or tampering with the data on the chain.
Extended information:
Blockchain is a term in the field of information technology. In essence, it is a shared database, and the data or information stored in it has the characteristics of "unforgeable", "full traces left", "traceable", "open and transparent" and "collectively maintained". Based on these characteristics, blockchain technology has laid a solid foundation of "trust" and created a reliable "cooperation" mechanism, which has broad application prospects.
Types
1. Public Blockchains
Public Block Chains means: any individual or group in the world can send transactions, and the transactions can be effectively confirmed by the blockchain , anyone can participate in its consensus process. The public blockchain is the earliest blockchain and the most widely used blockchain. The virtual digital currencies of all major bitcoins series are based on the public blockchain. There is only one blockchain corresponding to this currency in the world. .
2. Consortium (Industry) Blockchains
Industry Blockchains (Consortium Block Chains): Multiple preselected nodes are designated within a certain group as bookkeepers, and each block is generated by all preselected nodes. Nodes jointly decide (pre-selected nodes participate in the consensus process), other access nodes can participate in transactions, but do not participate in the accounting process (it is essentially still managed accounting, but becomes distributed accounting, how many pre-selected nodes, how to decide each The bookkeeper of the block becomes the main risk point of the blockchain), and anyone else can conduct limited queries through the open API of the blockchain.
3. Private Blockchain
Private Block Chains: Only use the general ledger technology of the blockchain for accounting. It can be a company or an individual, and the blockchain can be used exclusively With write permissions, this chain is not much different from other distributed storage solutions. Traditional finance is trying to experiment with private blockchains, while applications of public blockchains such as Bitcoin have been industrialized, and application products of private blockchains are still being explored.

Ⅲ Tchain: A new generation of underlying public chain created by Silicon Valley elites

Tchain is a very creative underlying public chain that integrates a number of innovative technologies and is determined to create a truly capable The underlying public chain that implements decentralized commercial-grade applications. The founding team of Tchain are all industry veterans with many years of experience. It can be said that Tchain is a star project born with a golden key.

Tchain’s mission is to accelerate the world’s transformation into a commercial application-oriented blockchain network. Team members are unanimously optimistic about the future of the decentralized world and are making unremitting efforts to accelerate the transformation of centralized business to blockchain. The goal of the Tchain team is ambitious. To achieve this goal, the team has formulated detailed plans.A detailed development plan allows investors to clearly see Tchain’s future, understand Tchain’s ambitions, and see Tchain’s value.

As early as July, the Tchain Research Foundation UBL (Universal Blockchain Ltd) was established in the United States with a registered capital of US$100 million. Rory, the core founder of Tchain, serves as a member of the board of directors. The foundation is mainly responsible for the development of Tchain public chain technology and the global docking of Tchain ecological resources, paving the way for the official launch of the project.

In mid-August, the Tchain team hired American Legal Counsel as a special legal team for the public chain to be responsible for the compliance of public chain operations and prepare legal documents for subsequent operations: including ecological investment and financing, and external cooperation. , legal documents for currency listing on first-line exchanges, etc., to protect Tchain’s global ecological layout.

In September, the Tchain team officially released the Tchain white paper in Chinese and English, which elaborated on Tchain’s core technologies such as multi-layer side chains, resource isolation, and one chain, one scenario, etc., which attracted great attention from industry insiders. , many well-known media rushed to report it. At the same time, the founding team attended multiple offline exchange meetings, shared the goals, vision and motivation of creating Tchain with fans, and announced the official launch of the Tchain project.

In October, the internal beta versions of Wallet 0.1 and Testnet 0.1 were released at the same time. Testnet 0.1 supports basic transactions including the main chain + multi-level side chain infrastructure, and will be announced in the weekly report. The team's detailed development progress allows the project's development progress to be monitored, which further improves the development efficiency of the development team and ensures the early completion of the project.

In November and December, the global private equity early bird phase was officially launched, Tchain technology promotional video was launched, and public versions of Tchain main chain, wallet and blockchain browser were launched. In the private placement stage, the project team will launch multiple airdrop activities to distribute free candies to early fans, who can then directly mention them to the exchange for trading in the later stage.

Starting from January 2019: It will be launched on many mainstream exchanges around the world, and the main network and main network mining pool will be online. Open up the Tchain ecosystem, establish Tchain Stars and Tchain STO sub-brands, help the Tchain ecosystem, and make important contributions to the development of everyone's pass and enterprise pass.

Throughout 2019: The first batch of DAPP applications, blockchain applications and TOKEN projects on the T-chain main network have been launched one after another, opening up the ecological value of the T-chain and jointly promoting the positive cycle of TCH value.

From Tchain’s development plan, we can see the down-to-earth work style of the Tchain team. We believe that with Tchain’s excellent technical strength, rich market experience, and large fan base, it can compete on the track of public chains. , Tchain will definitely be able to spread its wings and fly high, and achieve the ambitious goal of allowing large-scale commercial-level decentralized applications to run on Tchain.

IV Is it difficult to develop a blockchain public chain? How many domestic companies can do it

Blockchain is a computer with distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm, etc. New application models of technology. 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.

The biggest problem if such technology is to be put into application is the "impossible triangle problem"

That is, it cannot achieve scalability (Scalability) and decentralization (Decentralization) at the same time. ), security (Security), you can only get two of the three.

Most of the public chain projects currently on the market are difficult to put into use on a large scale.

IV Who proposed the public chain and what does it mean

The public chain in the public chain was proposed by Dr. Dai Weiguo of Tsinghua Interdisciplinary Information Institute Based on Thinkey's underlying security consensus network, it customizes industry public chains to form an ecological community; it is a new decentralized underlying basic operating system for blockchains (similar to centralized Android and iOS). Public chains, alliance chains, and private chains are equivalent. For cars, the public chain in the public chain is equivalent to the highway built by our Tinkey.

VI What is a public chain and what is it used for?

Public Blockchain, also known as "public chain", means that anyone in the world has permission to read it , send and obtain valid confirmation of the consensus blockchain. It can anonymously access the network without registration or authorization, and has the characteristics of decentralization, neutrality, openness, and non-tamperability. It is suitable for virtual currency, Internet finance and other fields.

It can be said that the public blockchain is the earliest blockchain in the world.

Currently, most blockchain projects use EOS, Ethereum and Bitcoin blockchains as the main public chains. By creating a developer-friendly blockchain underlying platform, these public chains support allowing anyone to build and use decentralized applications running on blockchain technology in the platform, allowing users to create complex operations according to their own wishes. Provides underlying templates for developing dAPPs.

Ensure the stability of the public chainThe key to operation lies in a specific consensus mechanism. For example, the Bitcoin blockchain is maintained by the proof-of-work mechanism (PoW), and Ethereum relies on the proof-of-stake mechanism (PoS). They are based on economic rewards (Token) and encrypted digital verification. exist in a combined manner. Further explanation: Token will encourage people to actively participate in the maintenance of nodes and jointly maintain the security of data on the chain, and these maintained blockchains are usually considered "completely decentralized".

So, what are the advantages of public chains? What does it do?

1. Public chains can protect users’ rights and interests from the influence of program developers

In public chains, program developers have no right to interfere with users, so public chains can protect users. User Rights of the Program. In addition, highly decentralized distributed data storage is also one of the biggest features of public chains. The advantages of open and transparent transaction data and the inability to tamper with data enable public chains to effectively protect users' data security.

2． Public chains can produce network effects

An information product has an inherent need for interconnection, because the purpose of people producing and using them is to better collect and exchange information. As the scale of the network expands, users can obtain more value from it and their needs are better met. The shared chain is open, so it has the opportunity to be applied by many external users and produce a certain degree of network effect.

In other words, as the scale of the public chain network expands, the number of users continues to increase, and the network effect continues to increase.

3. Public chains can be applied in actual business scenarios

In addition to financial applications, any application scenario that requires higher trust, security and durability, such as 3.0 era applications such as asset registration, voting, management, and the Internet of Things will be affected by public chains on a large scale.

In short, the underlying public chain is equivalent to the infrastructure of the blockchain world, and solutions are used to expand the performance of the underlying public chain or provide service support for commercial applications. Only on the basis of the solid, stable and efficient operation of the underlying public chain can blockchain commercial applications be developed and implemented. The importance and necessity of the public chain in the entire blockchain field, the development space and demand are very large. However, it still takes some time to correctly distinguish its advantages and problems and to explore application areas in a down-to-earth manner.

VII What is the public chain in the blockchain?

Blockchains include public blockchains, joint (industry) blockchains, and private blockchains. Public chain peer-to-peer electronic cash system: Bitcoin, smart contracts and decentralized application platform: Ethereum.

Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm.

Blockchain (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 data block contains Collects a batch of Bitcoin network transaction information to verify the validity of the information (anti-counterfeiting) and generate the next block.

(7) Extended reading on the underlying public chain of the blockchain

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According to the different degrees of centralization of the blockchain network, there are three types of blockchains in different application scenarios:

1. Blockchains that are open to the entire network and have no user authorization mechanism , called a public chain;

2. Allow authorized nodes to join the network and view information based on permissions. It is often used in inter-organizational blockchains, called alliance chains or industry chains;

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3. All nodes in the network are in the hands of an organization, which is called a private chain.

Consortium chains and private chains are also collectively called permissioned chains, and public chains are called non-permissioned chains.

Blockchain Characteristics

1. Decentralization. Blockchain technology does not rely on additional third-party management agencies or hardware facilities, and there is no central control. In addition to the self-contained blockchain itself, each node realizes self-verification, transmission and management of information through distributed accounting and storage. Decentralization is the most prominent and essential feature of blockchain.

2. Openness. The foundation of blockchain technology is open source. In addition to the private information of the transaction parties being encrypted, the data of the blockchain is open to everyone. Anyone can query the blockchain data and develop related applications through the public interface. Therefore, the entire System information is highly transparent.

3. Independence. Based on consensus specifications and protocols (similar to various mathematical algorithms such as the hash algorithm used by Bitcoin), the entire blockchain system does not rely on other third parties. All nodes can automatically and securely verify and exchange data within the system without the need for any human intervention.

4. Security. As long as you cannot control 51% of all data nodes, you cannot manipulate and modify network data at will. This makes the blockchain itself relatively safe and avoids subjective and artificial data changes.

5. Anonymity. Unless required by legal regulations, technically speaking, the identity information of each block node does not need to be disclosed or verified, and information transfer can be carried out anonymously.

Ⅷ How to explain the underlying public chain of LikeLib in an easy-to-understand manner

“LikeLib realizes the reconstruction and development of the decentralized system by establishing decentralized autonomous organizations (DCOs). LikeLib The main chain handles the main application business model, and the side chain adapts to diversified and multi-matching application scenario access. It uses parallel computing, making it possible to expand the blockchain to millions of users and millions of transactions per second, improving intelligence Commercial development efficiency. LikeLib is a blockchain truly developed for commercial applications.

From the perspective of blockchain technology application, LikeLib is not only a blockchain project that realizes cross-chain transactions and multi-asset interoperability, but also a complete blockchain development platform. While LikeLib implements cross-chain transaction functions, it is also a blockchain network that can operate independently: it contains native coins, supports smart contracts, and has privacy protection systems for smart contract token transactions. Any developer can develop financial applications that meet their needs on LikeLib based on application scenarios. ”

These two paragraphs are from the LikeLib white paper. A simple translation means: First, LikeLib is a blockchain truly developed for commercial applications. Second, any developer, as long as Ordinary developers who have some knowledge of smart contracts can also develop DApps.

Business applications are ever-changing and technology upgrades are changing with each passing day. The LikeLib community recognizes the fact that technology upgrades and business application logic are unpredictable. , absorbed the modular idea of ​​Linux kernel design and developed the LikeLib microkernel. The LikeLib design follows the principle of "everything is a module" and uses modularity to support technology updates and application adaptation.

And the public chain Which industries can be brought about changes in the future? Taking LikeLib as an example, perhaps we can look ahead:

(1) Public chain + information security: Use blockchain technology to allow users to directly own and control their personal data Rights, improve people's lives and enhance privacy security by providing digital identities.

(2) Public chain + commodity traceability: Use blockchain technology to make data of various commodities into blocks, and then Generate private keys according to relevant algorithms to prevent tampering, and then use timestamps and other methods to form a chain. This is exactly in line with the process production model of the commodity market. The commodity circulation itself is process-based, and the raw materials are produced from the place of origin through one process after another. , the information also comes from the information of the origin to the information of processing. From raw materials to processing to circulation and finally to sales, it is a process of time order. The information in the blockchain is also sorted in time order. And it can be traced back in real time, so the two fit perfectly.

(3) Public chain + securities: With the application of blockchain technology in the securities industry, a financial market that does not require the credit endorsement of a central institution can be established. Realizing peer-to-peer securities trading in a decentralized system, while utilizing the automated smart contracts and programmable features of blockchain, can eliminate the transaction process on the stock exchange, improve transaction efficiency and effectively reduce costs.

< p>Of course, the applications of LikeLib are by no means limited to these fields, but also include payment, insurance, credit reporting, supply chain, finance, etc. With the underlying public chain, we can provide solutions to the trust problems that currently exist in various industries. , and then promote the implementation of project applications.

Ⅸ What does the public chain belong to?

The public chain belongs to the blockchain. The public chain means that anyone in the world can enter the system at any time.Read data in the system, send transactions, and compete for accounting to the blockchain. Public blockchains are generally considered "completely decentralized" because no individual or institution can control or tamper with the reading and writing of data in it.

Public chains generally use token mechanisms to encourage participants to compete for accounting to ensure data security. In terms of application, public blockchain chains include Bitcoin, Ethereum, Hyperledger, most altcoins, and smart contracts. The ancestor of the public blockchain chain is the Bitcoin blockchain.

Characteristics and development of public chains

Public chains are the underlying architecture of blockchain technology. Anyone can read, send transactions, and transaction capabilities Obtain effective confirmation and participate in the consensus process. At the end of 2017, the cryptocurrency market reached an all-time high, and public chain projects began to grow explosively.

At this stage, a large number of new public chain projects have emerged on the market. Most of these projects are promoted as an upgraded version of Ethereum, but in fact they have not made new breakthroughs in technology and applications. and try.

X What kind of currency is lkl

LKL is the abbreviation of LikeLib. It is a public chain system at the bottom of the blockchain. Its nickname in China is Little Apple. It is actually a decentralized open network similar to Bitcoin. However, due to LKL's unique innovation, LKL claims to be efficient, safe, stable and reliable, and has broad future prospects.

The LikeLib public chain is preparing to create an ecosystem based on blockchain 3.0, creating a network of producers, developers, and users through the pyramid structure of the resource layer, platform layer, service layer, and application layer. the stable triangle between. Services provided by LikeLib include account registration, authentication, database, asynchronous communication, and program scheduling for distributed clusters.

Whether an underlying operating system public chain can be competitive depends on whether it can build an excellent application ecosystem, and the construction of an application ecosystem depends on whether developers are willing to use this underlying operating system public chain. .

From the perspective of technology development, LikeLib applies a number of cutting-edge cryptography technologies including secure multi-party computation, threshold key sharing, and one-time account generation mechanisms, and solves the problem of smart contract generation for the first time. The problem of privacy protection in currency transactions. It represents the development direction of the underlying blockchain technology from conditional security to provable security, and from logical control to algorithmic theoretical control.

And LikeLib has created a series of development tools to provide developers with strong support and service guarantee. At the same time, in the service layer, LikeLib provides developers with a variety of application templates to facilitate development.