Is it a public blockchain

1.

In the past, when it comes to blockchain, we always think of foreign procts, such as Ethereum. But when I talk about this topic today, I think more about China's own blockchain technology

at present, the mature application of blockchain technology is more concentrated in some public chain projects, because many application projects need to be developed based on this, so I think the current global landing direction is public chain projects, and it is still too early to talk about maturity. After all, bitcoin and Ethereum are still blocked, and many old problems have not been solved, There will be many new problems. The well-known ones are Biyuan chain, ulord (the project is abroad, but the technical party provides it in the domestic company, Hunan Tianhe Guoyun Co., Ltd.), quantum chain, Xiaoyi Neo, gongxinbao, etc

ulord is a point-to-point value delivery public chain. By building the underlying architecture of blockchain and digital resource distribution protocol, it supports third-party developers to build their own applications on top of their open source protocol, and works with many instry partners to build a complete ecosystem of blockchain technology and applications

based on various rules and protocols created by ulord, it is convenient to graft various digital resource application scenarios including text, pictures, music, video, software, etc., providing a direct docking platform for information creators and consumers. Third party developers can build their own economic system in ulord, or focus on building all kinds of applications around ulord, and use the ulordtoken in ulord as the voucher in the system

for example, an experience sharing platform can be built on ulord, where the experience sharers price the published experience, and the people who obtain the experience information trade on the platform, and each fee paid to the experience sharers will arrive at the account immediately; Proct promoters can publish ads on ulord, price ads, and people who are interested in ads can get certain profits by clicking on ads. The first mock exam is to separate information from the past, and to use platform or other centralized organizations to spread profit. This mode eliminates intermediate links, and information providers and consumers directly connect with Ulord, which ensures the maximization of the interests of the originator. p>

2.

Blockchain includes public blockchain, joint (instry) blockchain and private blockchain. Public chain point-to-point e-cash system: bitcoin, smart contract and decentralized application platform: Ethereum

blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies

blockchain is an important concept of bitcoin. In essence, it is 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 a batch of bitcoin network transaction information, Used to verify the validity of its information (anti-counterfeiting) and generate the next block

extended data

according to the different degree of blockchain network centralization, three kinds of blockchains under different application scenarios are differentiated:

1. The blockchain with the whole network open and without user authorization mechanism is called public chain

2. The authorized nodes are allowed to join the network, and the information can be viewed according to the authority. It is often used in the inter agency blockchain, which is called alliance chain or instry chain

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

alliance chain and private chain are also called licensing chain, and public chain is called non licensing chain

blockchain features

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

2. Openness. Blockchain technology is based on open source. In addition to the private information of all parties involved in the transaction is encrypted, the data of blockchain is open to everyone. Anyone can query blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent

3. Independence. Based on consensus specifications and Protocols (similar to various mathematical algorithms such as hash algorithm used by bitcoin), the whole blockchain system does not rely on other third parties, and all nodes can automatically and safely verify and exchange data in the system without any human intervention

4. Safety. As long as 51% of all data nodes cannot be controlled, the network data cannot be arbitrarily manipulated and modified, which makes the blockchain itself relatively safe and avoids subjective and artificial data changes

5. Anonymity. Unless there are legal requirements, technically speaking, the identity information of each block node does not need to be disclosed or verified, and the information can be transferred anonymously

3.

Public chain, also known as "public chain", refers to the blockchain that anyone in the world can enter the system at any time to read data, send confirmatory transactions and compete for bookkeeping. The public chain is generally considered to be "completely decentralized", because no indivial or institution can control or tamper with the reading and writing of data in it. In terms of application, blockchain public chain mainly includes bitcoin, Ethereum, super ledger, most counterfeit currencies and smart contracts. The ancestor of blockchain public chain is bitcoin blockchain, which has the following characteristics:

1, open source code

upload the code to GitHub, and everyone can get complete blockchain data by downloading, Accept the test of the public

2, complete decentralization

anyone can become a node, each node is open, everyone can participate in the calculation of the blockchain, any node is not permanent, but phased, and any center is not mandatory for nodes. Anyone can read and send transactions, and transactions can be effectively confirmed on the blockchain. Anyone can participate in the consensus process. The consensus process determines whether a block can be added to the blockchain and the exact current state. Everyone can get financial reward from it, which is proportional to their contribution to the consensus process. These public chains are generally considered to be "completely decentralized"

3. Developing decentralized applications

through this public chain, developers can easily develop centralized applications. Public chain can protect the rights and interests of users from the influence of program developers

4. The public chain, as the name suggests, has great inclusiveness and fairness. The better the public chain project does in these two aspects, the more prominent it will be. At present, many public chains sacrifice fairness in order to speed up the transaction, which is not optimistic. There is a project called Fanta network. Their DSC technology claims to be safe, democratic and fair, which deserves long-term attention. However, their code will not be open source until the end of the year, and the progress needs to be accelerated

5.

This is two different concepts. According to different standards, blockchain can be classified into three categories:

& # 8195&# 8195; 1) According to the network scope of blockchain, it can be divided into public chain, private chain and alliance chain

 &# 8195; 2) According to the docking type of blockchain, it is divided into single chain, side chain and interconnection chain

 &# 8195; 3) According to the display environment of blockchain deployment, it can be divided into main chain and test chain

the main chain can be understood as a formal online and independent blockchain network, while the public chain refers to a blockchain that can be read by anyone, can send transactions and can be effectively confirmed by anyone, and can participate in its consensus process

6.

Blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. Blockchain is an important concept of bitcoin. It 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 a batch of information about bitcoin network transactions, Used to verify the validity of its information (anti-counterfeiting) and generate the next block

if such technology wants to be put into application, the biggest problem is the "Impossible Triangle problem"

that is, scalability, decentralization and security cannot be achieved at the same time, and only two of them can be achieved

most of the existing public chain projects in the market are difficult to put into use on a large scale

7.

Coin call

money? This is the meaning of Zhihu who wants to be a coin circle or blockchain

coin is not a game, but a vertical community platform tailored for the coin circle. Through the incentive of token key, users can get the corresponding return. Coin is not only the information distribution center of token investors, but also the communication platform between "coin officials" and "coin friends"

token key encourages

token key introces blockchain token key, which represents the right to use the ecological functions of the platform and weekly newspaper. Through token key to encourage users' positive behavior, users will get corresponding rewards for their efforts on the platform. The incentive behavior of the current version of key is as follows

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publish excellent content: that is to reward excellent posts to match "content contribution" and "income acquisition", so as to realize incentive compatibility

discover excellent content: that is to say, to reward wise eyes and discerning pearls. Excellent posts are selected and determined by users' likes, and users who like also get the key award

managing excellent theme plate: that is to reward community administrators. Different theme plates are "shops" operated by different community management groups. Excellent theme plates will surely get higher advertising value, and the management group will also get better advertising revenue share

the purpose of the follow-up version of key:

pay to see ads: that is, users earn money by watching ads, and 75% of the advertising revenue of the platform will be distributed to each ad viewer on average

paid private group: paid private group is a way to realize the knowledge and influence of opinion leaders, and the payment of private group is realized through key

paid Q & A activities: users can launch real-time Q & A activities on the coin platform, and the payment of Q & A activities is realized through key

in addition, there are paid private messages, access to privileges, rewards, the right to use the surrounding ecological environment, users as stakeholders and so on

The distribution of

token key

the total amount of key is 100 billion and will never be issued. The allocation of key is composed of four parts: incentive pool, promotion and operation pool, money fund and team option

incentive pool: accounting for 45% of the total, the number is 45 billion key, which is used to motivate users to publish excellent content and discover excellent content

promotion operation pool: 25% of the total, with 25 billion keys, which is used to develop new users, absorb and motivate opinion leaders, and improve the activity of the platform

the fund accounts for 25% of the total amount, with 25 billion keys. The fund is a non-profit organization, holding keys to ensure that the technology development of the fund can be completed

team options: 5% of the total, 5 billion keys, as options granted to the development and operation team of Yuanhu

incentive mechanism of token key. The key Award for real name registration is released in phases for two years, with an average release every day. Users will automatically receive the money when they log in to the app for the first time every day

Invitation reward: users who invite friends to register and complete real name authentication can get the right to receive the invitation reward key, and the rules for receiving the invitation reward key are the same as those for receiving the real name reward

content reward: after publishing high-quality articles or comments, you can get high-quality content reward key

praise reward: users who have locked key can get praise reward for good articles. The more users lock key, the earlier they like, the more rewards they get

coin lock reward: users who lock key on the platform are rewarded according to a certain period, that is, users can get more keys by locking key

the necessary conditions for praising are as follows: there is energy

for praising and trampling, with a maximum of 100 points, which will automatically recover to 100 points the next day after consumption

every time you like or step on it consumes 10 points of energy

when the energy is less than 10 points, the revenue of the article will not be affected by the praise and trample, and there is no key reward for the praise

energy is equivalent to the 10 bullets distributed by the platform to users every day. You can use these 10 bullets to find good articles and praise them to get profits. There are only 10 bullets, so you need to cherish them; Of course, if the allocated 10 rounds of bullets are useless, they will be wasted and will not be accumulated

like rules

like: we encourage users to find high-quality content and like it. Each time you like it, you need to consume 10 points of energy, not key. If you don't like / step on the weight or lack of energy, you won't increase the content revenue, and you won't get the revenue

like / step on weight: the key locked by the user + the key to be received by the real name = the weight of each like or step on. The more the key locked by the user, the greater the relative weight

praise reward: 50% of the article revenue will be awarded to the author, and the other 50% will be awarded to the users who like the article. In order to reward high-quality content discoverers, the earlier they like, the more they get, while the later they like, the less they get. Seven days after the article is published, the system will settle the award according to the rules. After the settlement of the article, praise / trample will no longer affect the income

trample: users are encouraged to trample on spam articles and irrigation comments to improve the quality of the community. Trampled articles will rece the revenue and popular ranking scores, and each trample consumes 10 points of energy, not key. At present, you won't get a key reward by clicking on it

explanation of coin phenomenon

after understanding the above rules of coin game, it is easier to explain all kinds of coin phenomena

there are hundreds of likes in the moment when big V's articles are published, because the consensus of big V's articles is basically formed, and the revenue is high. Users can divide up 50% of the relatively high revenue when they like big V's articles, and the earlier they like, the higher the revenue, so there is robot like

this phenomenon deviates from the original intention of "good article has good reward& quot;， The same article big V issued and ordinary users issued income is very different, how to really do "good article has good reward& quot; We need to think deeply

a big V likes dozens or even hundreds of yuan, while an ordinary user likes a few cents / a few yuan, because the revenue of likes is related to the weight of likes, and locking the key can increase the weight of likes. Big V usually locks millions of keys, so the revenue of likes is higher

so if you have a key in your wallet or trading platform, you can withdraw money to the app and lock it. You can increase the weight of like to increase the revenue of like

users who register with their real names will benefit from liking articles, because the key of real name registration reward (to be received) is calculated in the weight of liking, and the key of invitation reward is not calculated in the weight of liking

like consumes energy, 100 points of energy every day, 10 points of energy every time. After energy consumption, there will be no profit if you like again

8. The development of blockchain technology is obvious to all, but there are essential differences between blockchain coin and virtual coin. It can be considered that blockchain projects developed with entity pain points have specific landing applications and entity support, and blockchain tokens issued with entity pain points still have certain value support; If there is no specific entity and application to support virtual currency, it is just air currency and has no value, then the risk is relatively large.

9. Money seems to motivate spectators rather than procers< Make complaints about br / > block chain