中科鸿基的区块链是什么,中科鸿基的区块链怎么样

『一』 What changes in subsequent nodes will result from block changes

The blockchain uses a P2P network, and all nodes are equal. If the local blockchain is modified, it needs to be propagated to all nodes, and the consistency protocol stipulates that more than half of the results can be supported.

This greatly increases the cost of tampering. Tampering with transactions will cause the root of the Merkel tree to change, which will lead to block changes; and block changes will cause the "hash value of the previous block" of subsequent nodes to change, thus leading to changes in the entire chain; to change the tampered Synchronizing the blockchain to all peer-to-peer network nodes is almost impossible due to the limitations of the consensus protocol.

Blockchain (English: blockchain or block chain) is an intelligent peer-to-peer network that uses a distributed database to identify, disseminate and record information, also known as the Internet of Value. Satoshi Nakamoto proposed the concept of "blockchain" in the "Bitcoin White Paper" in 2008, founded the Bitcoin Social Network in 2009, and developed the first block, the "Genesis Block".

The summary is as follows:

The blockchain shared value system was first imitated by many cryptocurrencies, and was combined with the algorithm in proof of work. Improvements have been made on it, such as the adoption of proof-of-stake and SCrypt algorithms. Subsequently, the blockchain ecosystem continued to evolve around the world, with the emergence of initial coin offerings (ICO); smart contract blockchain Ethereum.

An asset-tokenized sharing economy with “light ownership and heavy usage rights”; and blockchain country. People are leveraging this shared value system to develop decentralized computer applications (Dapp) in various industries.

Build decentralized autonomous organizations and decentralized autonomous communities (Decentralized autonomous society, DAS) around the world.

『二』 HBA public chain: Create a public chain ecosystem covering blockchain + full-scenario applications

The development of blockchain technology has gradually attracted attention from people and even the country. As a new application model based on computer technologies such as distributed data storage, point-to-point transmission, consensus mechanisms, and encryption algorithms, the essence of blockchain is a decentralized data storage system that can be updated but cannot be tampered with.

The application of blockchain technology has extended to digital asset transactions, the Internet of Things, commodity traceability, digital culture, digital medicine, network security, medicine and health, etc., promoting social production and life. major changes in methods and production relations.

The research and development of the HBA public chain began in February 2019. The core team is composed of early overseas blockchain participants and is jointly maintained by multiple decentralized distributed communities around the world. Proposal of innovationBased on the 3R circular economy model (Rece, Renue, Racycle), the pass uses the POC+POS mechanism to gradually reward everyone who contributes to the ecology. It will not generate a large number of tokens at no cost like other public chains, effectively hitting the industry. chaos and ensure fairness for every ecological participant.

HBA has realized a truly decentralized blockchain through a large amount of technology accumulation, developed source code, and established a complete blockchain browser. Users can query the generation of each block and the process of each transaction. It provides a truly fair and open environment in which no one can cheat and everyone can truly become a supervisor of the system.

The ecological application scenarios of the HBA public chain include digital identity, artificial intelligence, supply chain finance, DEFI platform, cross-chain payment, health care, food safety, and education. At present, the development of public chains, blockchain browsers, and decentralized exchanges has been completed. The HBA public chain will be tested on the mainnet in October 2020!

At the same time, in the ecology of the HBA public chain, there is also a group of self-organized evangelists and professional lecturers to serve the HBA member ecology and provide a one-stop service of "incubation, training, and market development" for the HBA ecological community. Serve.

Australian, holds senior management positions in multiple chambers of commerce. Started working on blockchain in 2013. In 2014, he applied for the first wallet retrieval patent. In 2015, he went to the government department to teach blockchain. , patent ranking fifth in the world. At the same time, he has his own financial management company in Australia and created the chain33 blockchain underlying architecture. He has a lot of technical reserves and applications, holds BCS and TELC qualification certificates, has published 4 works, and has millions of readers and fans.

In the medical field, we currently face two major challenges: First, the medical system is complex, involving pharmaceutical manufacturers, medical service providers, and patients, etc., so it is necessary to connect all parties and accurately transmit information; second, medical supply The chain lacks traceability. Blockchain technology has the potential to solve the above problems and create new medical models because of its traceability, without the need to coordinate parties, and its high accuracy and reliability.

HBA is based on blockchain technology and combines big data, artificial intelligence and Internet of Things technologies, covering medical, pharmaceutical, medical insurance, pension, medical equipment, biology, insurance, finance, government and social fields. public chain.

HBA has rich international medical experience in global new medical health. It can meet the health needs of various users with precise and efficient treatment methods and provide a variety of health-related linkage services. This is because they are very Understand the deficiencies in the current healthcare model. Integrate resources and build a new medical system to solve the problem of difficulty and high cost of medical treatment for the people, and use 5G technology toThe technology effectively prevents doctor resources from being wasted. With the characteristics of "fast, convenient and accurate" intelligent technology, it provides people with "one-stop" medical and health service solutions.

IPFS, the Chinese name of the Interstellar File System, is a point-to-point distributed file system. It is a hypermedia transmission protocol based on content addressing, versioning, and point-to-point. Its purpose is to supplement or even replace the The traditional centralized storage HTTP protocol has been used for more than 20 years.

The advantages of IPFS are: efficiency, security, privacy, permanent storage, low cost, faster access, etc.

HBA’s block data is stored using the IPFS decentralized storage structure. All blocks have pointer references to the previous block to ensure that the data is not tampered with. The sha256 function is used to hash the data, the ecc asymmetric encryption algorithm is used for identity authentication, the aes encryption algorithm is used to encrypt the private key, and the Merkle number is used to verify and store transactions.

HBA public chain combines the advantages of blockchain for distributed storage, aiming to improve data security, privacy and users' control over their data. At the same time, users can receive token rewards by participating in providing storage space. .

1) Current status: Under development

2) February 2019: Code open source research and development

3) October 2020: Mainnet Tested online

As an emerging technology, blockchain covers decentralization, trustlessness, sharing economy, distributed computing, distributed storage and other aspects, and will comprehensively innovate existing social system.

HBA public chain has always insisted on advancing with the times, constantly learning new design concepts and development technologies, using the latest design concepts to serve customers and achieve a good user experience. The Internet of Things industry is booming, and only innovative technologies and models can last forever. We firmly believe that innovation is the eternal driving force for human progress. Technology has a starting point, but innovation has no end! Innovation, pragmatism and efficiency will be our eternal pursuit!

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『三』 Four major highlights in the blockchain field in 2022｜Interface Prophet⑯

There is a question about the blockchain field The core propositions of the "Impossible Triangle" are security, performance and decentralization. This proposition is the foundation of the evolution of blockchain technology. Whether it is Bitcoin, Ethereum, or the vigorously developed alliance chain, it is essentially a trade-off between the above three elements.

As Ethereum’s core position among blockchain developers is determined, performance has gradually become a bottleneck for its development. Therefore, in the foreseeable 2022, improvements in performance and efficiency will be a long-term and critical questionquestion.

Based on the Ethereum ecosystem, to improve performance within the limits of the "Impossible Triangle", the current path has been clear. The first one is the Layer 1 level, that is, other public chains share the burden of Ethereum. Data pressure.

One of the major trends in 2021 is the increased use of Layer 1. The space is currently dominated by Solana, Avalanche, Terra and Binance Smart Chain, each with a growing ecosystem. The value has exceeded 10 billion US dollars.

The second type is Layer 2, which is based on the Ethereum main network, but transfers settlement to the second layer network to improve efficiency. This is what Ethereum is working on, Layer 2 is often called rollups because they "aggregate" or bundle transactions together and execute them in a new environment before sending updated transaction data back to Ethereum.

As for the most critical data verification link of the blockchain, Layer2 currently has two technical solutions, one is called "Optimistic rollups" and the other is called "ZK Rollups". Both technical routes have teams developing corresponding networks and have ecological support, such as Arbitrum, which chooses "Optimistic rollups", and dYdX, which chooses "ZK Rollups".

Between Layer1 and Layer2, there is another solution called "side chain", which is partially compatible with the Ethereum main network, but does not belong to Layer2. They are specially used to deal with the excess of Ethereum. capacity, rather than competing with Ethereum as a whole, and hosting Ethereum applications in a complementary manner.

Starting with DeFi, which currently has the most active users, according to statistics from DeFi Lama, the amount of DeFi locked on Ethereum has exceeded 100 billion US dollars, and other public chains such as BSC, Solana, and Avalanche have also Attracting nearly US$49 billion in funds, it has become a very active financial scene.

Although the data of many public chains is quite large, different chains are like data islands, and assets on different chains cannot be freely exchanged. In addition, many emerging public chains are not as developed as Ethereum and lack many foundations. Facilities such as stablecoins, NFT games, and more.

Therefore, assets on other chains need to be introduced into one's own public chain through cross-chain. Among the currently commonly used cross-chain methods, in addition to cross-chain currency withdrawals in centralized institutions such as exchange wallets , the most common ones are various decentralized cross-chain asset bridges.

For cross-chain bridges, the most important issue is how to reach consensus, which to a large extent is related to investors’ custody of assets.Security, for now, the cross-chain bridge of a centralized exchange is the most convenient cross-chain bridge for users. However, the cross-chain bridge of a centralized exchange has the problem of a single point of failure. In addition, now The cross-chain bridge is still gradually developing in the direction of non-custodialization in order to further protect the security of users' assets.

The full name of DAO is "Decentralized Autonomous Organization", which is a management model that attempts to get rid of the traditional bureaucracy and uses blockchain technology to complete autonomous operations. organizational form.

Decentralized Autonomous Organizations (DAOs) enable global coordination of individuals using blockchain-based governance. DAOs can be used for many purposes, including managing the operations and capital of a blockchain project (MakerDAO), managing investment capital (The LAO), managing the use of game assets (YGG DAO), coordinating cultural groups (Friends With Benefits), or coordinating purchases Asset (Constitution DAO).

The number of DAOs included in the deep website has reached 187, with total assets under management exceeding US$12 billion and covering more than 1.6 million members. Although in the blockchain field, this is not a huge amount of data. But institutions including Sequoia Capital are beginning to take notice of this new term.

The market value of cryptocurrencies officially exceeded US$2 trillion in 2021 and is now at US$2.5 trillion, an increase of 175% from the beginning of the year. Along with the explosive growth of market value, financing in the encryption field has also increased rapidly. According to statistics, there were 1,529 publicly disclosed primary market financings in the encryption industry in 2021, totaling approximately US$32.6 billion, with a year-on-year growth of an exaggerated 814.2%.

However, equity financing in the crypto field is different from other fields. Under the "VIE" structure, the main exit channel for traditional VC funds is for companies to land on the secondary market for IPO. However, the blockchain field has its own new financing method ICO (banned in China). The key difference of this decentralized financing method is that users can participate in the growth of the community at an earlier stage, while under the traditional venture capital model, only logging in After the secondary market, ordinary investors have the opportunity to share the dividends of corporate growth.

In the field of encryption, first of all, the concept of "company" has been weakened. Due to the existence of "Web3" and "DAO", communities and organizations are more mentioned. Users are naturally interested in There is a sense of distrust in centralized platforms.

The most popular project in the crypto community in the past two weeks is called "OpenDao", which is a project that imitates the leading NFT trading platform "OpenSea". The reason why this project is so popular is that crypto players are interested in"OpenSea" is dissatisfied. "OpenSea" has recently reported that it is conducting a new round of financing and is preparing for an IPO. However, NFT enthusiasts do not want “OpenSea” to become a monopoly platform like the current Internet giants, so “OpenDao” adopts the concept of decentralization and issues airdrops to all “OpenSea” users.

And at the end of 2021, there was a debate in the encryption community about "Web3", including Tesla Chairman Elon Musk and former Twitter executive Jack Dorsey pointing to contradictions during the debate I have learned about venture capital institutions in crypto finance and believe that VCs have gained too much profit.

In 2021, an investment institution in the form of "DAO" also emerged. This kind of organization includes investors who are very influential in the community and are deeply involved in the technology field. They incubate The project performance even exceeds the results of some traditional VCs.