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Blockchain Technology Branch
Publish: 2021-04-26 04:34:05
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.
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. The projects of jinwowo network technology analysis blockchain are divided into three levels:
the top and easiest thing to do is the application layer. I can see two or three such projects every day, accounting for more than 95% of the whole market. But such companies often write a lot of technical things in the white paper. In fact, they also write in vain. This is purely for the purpose of collecting pages, because they don't need to talk about technology at all
the second type is the intermediate operation level, such as quantum chain and ant. This kind of project is similar to the operation procere, called the basic chain, which is used to run the application. This category is relatively small, and the proportion has dropped to less than 5%
the third category is more downward extension and lower level, such as standard chain and arcblock. This kind is even less. It's good to see two or three in a month. And some of them are not necessarily true, because there is really nothing to write about, and all fields are occupied by others, so someone will go in this direction.
the top and easiest thing to do is the application layer. I can see two or three such projects every day, accounting for more than 95% of the whole market. But such companies often write a lot of technical things in the white paper. In fact, they also write in vain. This is purely for the purpose of collecting pages, because they don't need to talk about technology at all
the second type is the intermediate operation level, such as quantum chain and ant. This kind of project is similar to the operation procere, called the basic chain, which is used to run the application. This category is relatively small, and the proportion has dropped to less than 5%
the third category is more downward extension and lower level, such as standard chain and arcblock. This kind is even less. It's good to see two or three in a month. And some of them are not necessarily true, because there is really nothing to write about, and all fields are occupied by others, so someone will go in this direction.
3.
A: the main application fields of blockchain technology are finance, Internet of things and logistics, public service, digital right, insurance and public welfare
First, in the field of finance,
blockchain has great potential application value in international exchange, letter of credit, equity registration, stock exchange and other financial fields
Second, the Internet of things and logisticsblockchain can also be naturally combined in the field of Internet of things and logistics. Through blockchain, we can rece logistics costs, trace the proction and delivery process of goods, and improve the efficiency of supply chain management
Third, in the field of public service, blockchain is closely related to people's proction and life in the fields of public management, energy and transportation. However, the centralization of these fields also brings some problems, which can be transformed by blockchain Fourthly, in the field of digital right, through blockchain technology, works can be authenticated to prove the existence of text, video, audio and other works and ensure the authenticity and uniqueness of ownership In the field of insurance, insurance institutions are responsible for fund collection, investment and claim settlement, and often have higher management and operation costs Sixth, the data stored on the public welfare fieldblockchain is highly reliable and tamperable, which is naturally suitable for social public welfare scenarios. The relevant information in the public welfare process, such as donation project, collection details, fund flow, recipient feedback, etc., can be stored on the blockchain, and can be made transparent and public, which is convenient for social supervision
4. The classification of Chongqing jinwowo analysis blockchain technology is as follows: according to the participation access mechanism of blockchain, that is, the blockchain account book is not public, we can divide the blockchain into three categories: public chain, private chain and alliance chain.
5. 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.
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.
6. The general classification of Chongqing jinwowo analysis blockchain technology is as follows:
1 - Open blockchain
2 - Collaborative blockchain
3 - private blockchain.
1 - Open blockchain
2 - Collaborative blockchain
3 - private blockchain.
7. 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.
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.
8. Chongqing jinwowo: a block contains the following three parts: transaction information, hash formed by the previous block and random number.
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