Baidu's centralized blockchain
The decentralization of blockchain refers to the form of social relations and content generation formed in the process of blockchain development. It is a new network content proction process relative to "centralization"
blockchain is an important concept of bitcoin, which is essentially a decentralized database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains the information of a batch of bitcoin network transactions, which is used to verify the effectiveness of its information (anti-counterfeiting) and generate the next block
blockchain is unified in the whole network, so it is logically centralized. From the perspective of architecture, blockchain is based on peer-to-peer network, so it is decentralized. From the perspective of governance, blockchain makes it difficult for a few people to control the whole system through consensus algorithm, so it is decentralized
extended data:
characteristics of blockchain Decentralization:
decentralization, not without the center, but by the node to freely choose the center, freely determine the center. In short, centralization means that the center determines the node. The node must depend on the center, and the node cannot survive without the center
in a decentralized system, anyone is a node, and anyone can be a center. Any center is not permanent, but phased, and no center is mandatory for nodes
with the diversification of network service forms, the decentralized network model becomes more and more clear and possible. After the rise of Web2.0, the services provided by Wikipedia, Flickr, blogger and other network service providers are decentralized. Any participant can submit content, and Internet users can create or contribute content together
reference source: network blockchain
reference source: Network decentralization
The characteristics of decentralization in blockchain technology are decentralization, distrust and collective maintenance
Decentralization: there is no centralized hardware or management organization in the whole network, the rights and obligations of any node are equal, and the damage or loss of any node will not affect the operation of the whole system. Therefore, it can also be considered that the blockchain system has excellent robustness2. Distrust: there is no need to trust each other when participating in the data exchange between each node in the whole system. The operation rules of the whole system are open and transparent, and all data contents are also open. Therefore, in the specified rule range and time range of the system, nodes cannot and cannot cheat other nodes
3. Collective maintenance: the data blocks in the system are jointly maintained by all the nodes with maintenance function in the whole system, and these nodes with maintenance function can be participated by anyone
extended data
blockchain technology has never excluded supervision, and supervision nodes can easily access any blockchain network. Because of the openness and transparency of the blockchain, the regulatory authorities can monitor the transaction data of the whole system more conveniently, and because of the anti tampering property of the blockchain
once a transaction occurs, it can't be changed or deleted, so it's impossible for the data fraud to hoodwink the supervision, which is more concive to the supervision of the regulatory authorities on the market behavior. Thus, blockchain will become an important tool for regulatory Technology (regtech)
source: network blockchain
open and transparent
open and transparent. Once all the information recorded on the blockchain is difficult to tamper with and cannot be hidden, users can check it at any time. Generally speaking, as long as the real name authentication is added to the plan, the blockchain will generate nodes, No one can modify (including the platform)
never downtime
the blockchain based on the public chain is not affected by any institution or indivial. As long as the incentive mechanism is effective and the Internet exists, the blockchain will exist. Generally speaking, since the platform service personnel are not available, the platform machine has been working
democratic decision-making
bottom up decision-making, blockchain proposes a variety of different consensus mechanisms to help users effectively form bottom-up decision-making and jointly participate in major decisions. Generally speaking, if the platform wants to modify a thing, for example, the content of the plan can only be carried out after more than half of the people participate in the voting, or the application for mutual aid needs mutual aid fund. When more than half of the people do not agree with the publicity, the platform will not pass. Thank you very much for your patience. If you have any help, please accept it. I wish you a happy life! thank you!
every central node can generate blocks and write data, so every point is a central node, or the blockchain is decentralized. In order to control the whole system, more than half of the nodes must be controlled in order to control voting, so there is no administrator in this system.
Generally, it's legal, but I don't think it's reliable. If you put it in your wallet, it's equivalent to being there for others, so you can't make your own decisions
at present, the blockchain world all believe in a "God" named "Nakamoto Tsung". They all have a Bible named "bitcoin: a peer-to-peer e-cash system" written by Nakamoto Tsung, even though some blockchain projects in the future have started to be independent (such as eth, gucs, etc.), But it is still unable to change the essential characteristics of constant total circulation and "peer-to-peer payment"
However, the focus of attention is different. For example, Ethereum pays more attention to the development and deployment of smart contracts, while the recent big fire of gucs focuses more on the implementation of Inclusive Finance Gucs hopes that national and cultural differences will no longer be an insurmountable gap. Inclusive Finance will spread to every corner of the world, effectively rece the global gap between the rich and the poor, promote the upgrading of consumer finance, and improve the financial situation of small and micro enterprises and indivials around the world, so that the public can really control their rights and build a fairer and better societyin a centralized system, the central node controlling the whole blockchain is the weakest link of the system
if the central node intentionally lies or is broken, the whole blockchain will be paralyzed. Whether it is a public chain or a private chain, it may be a centralized chain.
When it comes to blockchain, we often encounter the concept of "decentralization". So what is decentralization? Nakamoto has solved the difficult problem of "point-to-point e-cash" defined by himself. In this process, he "invented" the blockchain technology. Bitcoin system integrates technology and theory of cryptography, game theory and software engineering. Blockchain technology is an innovation formed by ingenious combination of existing technologies. Nakamoto didn't solve the problem of "peer-to-peer e-cash" out of thin air. He followed the footsteps of his predecessors, but he completed the last leap
"decentralization" is the competitive advantage of removing the centralized central node. It does not mean that there is no center, but the center node is a relatively neutral existence. These central nodes will not be mandatory. For a fully decentralized system, the connection between nodes is not completed by specific nodes, and all nodes can store and update data on the system, so as to achieve openness
decentralized blockchain is essentially a decentralized distributed ledger database. The simple understanding is that the data of blockchain is stored in many nodes of the network. The traditional way of data storage exists in one or several large nodes in the network. From this point of view, the so-called centralization and decentralization is the difference in the number of nodes storing data. Therefore, the decentralization of blockchain is relative. Data only exists on one node, which must be centralized. But if there are 100 nodes, they can be said to be decentralized relative to one node, but the degree of decentralization is not the same. At the same time, centralization and decentralization are not contradictory, and they are not completely opposite, because the word "de" in decentralization means the process of weakening and eliminating the center, rather than the concept that there is absolutely no center, which is completely opposite to non centralization
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