Blockchain block division

1. According to the classification of known blockchain technology applications, jinwowo group can be roughly divided into three categories:
1 - public blockchain; It means that anyone can read and send transactions for validity confirmation, and anyone can participate in the consensus process of the blockchain to jointly maintain the security, transparency and non tampering of the public blockchain data. For example,
2-community blockchain represented by bitcoin; It is also called alliance chain, which means that the nodes participating in the blockchain are selected in advance, and there are usually good network connections and other cooperative relationships between the nodes; Community blockchain is a practical application scenario of the combination of blockchain and physical goods, such as Domenech jewelry's Maobei mode
3-private blockchain: the participating nodes only have a limited range, the data access and use have strict permission management, the write permission is only in the hands of the participants, and the read permission can be opened to the outside world.

2. 1. Public chain, no official organization and management organization, no central server, participating nodes freely access to the network according to the system rules, not controlled, and work based on consensus mechanism among nodes Subversive: absolutely credible and open) < br > typical case: digital currency represents bitcoin < br > 2. The private chain is built within a group. The operation rules of the system are set according to the requirements of the group, and the modification or read permissions are limited to some extent, while maintaining the authenticity and partial decentralization of the blockchain Typical case: R3 < br > 3. Alliance chain, jointly initiated by several institutions, is between the public chain and the private chain, and has the characteristics of partial decentralization. The read permission on the fast chain in this area may be public or partially public, that is to say, multiple pre selected nodes are designated as bookkeepers internally, and the pre selected nodes compete for bookkeeping permission, Other access nodes can participate in the transaction, but not the accounting process The abilities of the candidates should not be uneven< Br > (relatively credible and open) < br > existing cases: Super ledger < br > example:? In the case of loan diversion, when the user jumps to the other party's website for registration through our link, the docking party can choose to cheat and say that it has not received the user's registration request. However, if we put the user registration behavior into the block, if the docking party wants to receive the user registration behavior, it must pay us at the same time.

3. What are the characteristics of public chain, private chain and alliance chain
according to the access mechanism, blockchain can be divided into three categories: public chain, private chain and alliance chain. Other types of blockchains may be born in the future
the public chain is open and transparent. Any indivial or group in the world can send transactions on the public chain, and the transactions can be effectively confirmed by the blockchain. Everyone can compete for bookkeeping rights. Bitcoin blockchain is a typical representative of public chain
the alliance chain is semi open. It is a blockchain used within a group or organization. Several nodes need to be designated as bookkeepers in advance. The generation of each block is decided by all preselected bookkeepers. Other nodes can trade, but they have no bookkeeping rights
the private chain is completely closed. Only the blockchain technology is used for bookkeeping, and the bookkeeping right is not open, and only internal transactions are recorded, which are exclusively enjoyed by companies or indivials.

4.

Blockchain is divided into three categories

1. public blockchain

2. private Ledong blockchain

3. common sports blockchain
   

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5. Many shopping malls will have a point mechanism, and it has become a very common marketing way for consumers to send points. The application of blockchain is derived from the integral system. Through the integral system of blockchain, we can 1. Build the credit enhancement process of integral issuance, which lays the foundation for circulation; 2. The margin cashed by the blockchain integral bank is the exchange endorsement; 3. From service-oriented to user-oriented, users can transfer and exchange independently, blockchain is responsible for matching, and points play a role in market decision
4; 5. Ecological incentive mechanism is introced. At present, the domestic blockchain integration system technology development has the strength of micro three cloud technology developers.

6. A new resolution initiated by representative Adam kinzinger, a Republican from Indiana, has been submitted to the US House of Representatives, calling on the government to formulate national policies on emerging technologies, including digital currency and blockchain technology
the resolution calls on the idea of bitcoin, but does not directly mention its name. Instead, it calls it "alternative illegal currency". Blockchain technology is the key point, which points out that this technology has the potential to "fundamentally change" the way trust and security are built on online transactions
but in fact, the United States has not taken action to formulate this rule. However, there is a global blockchain alliance R3 in the process of formulating the standard for the use of blockchain. Of course, blockchain is just a technology that can be used by any enterprise. In China, there is a project called decent, which is more avant-garde. It uses blockchain technology to build a decentralized content publishing platform, but it may encounter some problems in China.

7. The different types of blockchain are as follows

1. Divided by the degree of openness: public chain, alliance chain and private chain

2. Divided by the scope of application: basic chain and instry chain
there is a saying that currency is about consensus and chain is about ecology<

Third, according to the original program division: the original chain, branch chain
the degree of division may be more small, perhaps there is such an understanding

Fourth, according to the degree of Independence: the main chain, side chain
according to whether the blockchain is independent enough, there is also a way to divide the blockchain< Five, according to the hierarchical relationship: mother chain, child chain
the last way of division is also relatively small, and listen to make a simple definition.

8. It can be roughly divided into three categories:
1 - public blockchain: it refers to the blockchain that anyone can read and send transactions for validity confirmation, and anyone can participate in its consensus process, so as to jointly maintain the security, transparency and non tampering of public blockchain data
2-community blockchain: also known as alliance chain, it means that the nodes participating in the blockchain are selected in advance, and there are usually good network connections and other cooperative relationships between the nodes
3-private blockchain: the participating nodes only have a limited range, the access and use of data have strict permission management, the write permission is only in the hands of the participants, and the read permission can be opened to the outside world.

9. The hierarchical points of jinwowo network technology analysis blockchain are as follows:

the bottom layer is some common basic moles, such as basic encryption algorithm, network communication library, stream processing, thread encapsulation, message encapsulation and decoding, system time, etc

the middle layer is the core mole of blockchain, which generally includes the main logic of blockchain, such as P2P network protocol, consensus mole, transaction processing mole, transaction pool mole, simple contract or intelligent contract mole, embedded database processing mole, wallet mole, etc

the top layer is often based on the interaction mole of JSON standard RPC. Based on JSON RPC, we can also make a better UI interface or a web service.