Application of blockchain and logic thinking of defects

1.

(1) The underlying platform of the blockchain is a domestic independent and controllable blockchain platform developed by the science and technology of the blockchain. With the characteristics of high performance, high availability, scalability, easy operation and maintenance, strong privacy protection, and hybrid storage, the platform cooperates with the data sharing and security computing platform bitxmesh, the blockchain open service platform filoop, the supply chain finance platform filolink, and other platforms The deposit service platform filoink and the smart contract security R & D platform meshsec can better support the applications of enterprises, governments, instry alliances and other instries, and promote the efficient circulation of value among multiple institutions

(2) JD chain is the underlying framework of enterprise level blockchain independently developed by JD, and its birth marks that JD has started the construction of "Zhizhen ecology" based on the baas platform of blockchain and the underlying chain of "jdchain". Relying on the "one key deployment" capability of multiple optimization implementation, JD Zhizhen chain service platform has achieved the leading second level blockchain node deployment. In addition, it also has the core advantages of open compatibility with a variety of underlying, enterprise level dynamic networking and other mature applications. The timely launch of JD Zhizhen chain will effectively promote the large-scale implementation of enterprise level blockchain applications in various instries, and promote the construction of China's and global trust economy

(3) thunderchain is a blockchain application project independently researched and developed by netxin technology under thunderchain, which has high concurrency and second level confirmation capability of millions of TPS. Based on the research and development of high-performance blockchain procts, Xunlei has built an open platform of Xunlei chain, which helps enterprises or indivial developers to deploy smart contracts, easily realize the proct and service on the chain, and make the application development of blockchain more convenient

(4) Jingtong blockchain

Jingtong blockchain is the core underlying technology of Jingtong technology's blockchain with independent intellectual property rights. It is an effective decentralized Internet trading network based on blockchain technology, which adopts layered design (5 layers) underlying platform and multi language intelligent contract system, and has realized cross chain function. It has multi-level, all-round and one-stop service capabilities such as private chain, cloud chain and alliance chain. The layout of instry and regional ecology has taken shape

in addition to the above blockchain procts, there are community led LTC, cosmos, iota, Neuros, nuls, MOAC, etc., and enterprise led ripple, stellar, Weizhong bcos, network xuperchain, Huawei, Ping'an, Wanxiang, ant financial services, Zhongan, Bubi, matrix element, secret ape, zhongxiangbit, complex beauty, Shanghai Lianjing, etc

extended data:

blockchain is far more than a technology, which involves the spirit of "multi-party cooperation". In modern society, a lot of things must rely on everyone's cooperation to achieve 1 + 1 & gt; But we should try our best to avoid the problem of "information asymmetry" in cooperation

therefore, members of the alliance should keep accounts and share data together, and make everything public to eliminate "information asymmetry", so as to protect everyone's interests and make the business environment develop healthily. Honest work will get e benefits, if cheating will naturally be known to all. Technology is the foundation to help achieve this pattern. This is the more important "blockchain thinking"

2. At present, there are still many problems in the practical application of blockchain technology, such as low performance, less transaction frequency per unit time, lack of technology application ecological environment, lack of relevant application cases and fraud in the name of blockchain.

3. At present, there are four main types of consensus mechanisms: pow, POS, dpos, pool
1. POW workload proof, which is familiar with mining, calculates a random number that meets the rules through and or operation, that is, obtains the bookkeeping right, sends out the data that needs to be recorded in this round, and stores it together with other nodes in the whole network after verification
advantages: complete decentralization, free access of nodes
disadvantages: bitcoin has attracted most of the computing power in the world, and other blockchain applications using POW consensus mechanism are difficult to obtain the same computing power to ensure their own security; Mining causes a lot of waste of resources; The period of reaching consensus is long, which is not suitable for commercial application.

2. Proof of rights and interests of POS, a mechanism of upgrading consensus of pow; According to the token proportion and time of each node; It can rece the difficulty of mining in equal proportion, so as to speed up the speed of finding random numbers< Advantages: to a certain extent, it shortens the time to reach a consensus
disadvantages: mining is still needed, which does not solve the pain point of commercial application in essence

3. Dpos share authorization certification mechanism is similar to the voting of the board of directors, in which the coin holders cast a certain number of nodes to verify and account on their behalf
advantages: greatly rece the number of participating verification and accounting nodes, which can achieve second level consensus verification
disadvantages: the whole consensus mechanism still depends on token, and many commercial applications do not need token to exist

4. Pool verification pool, which is based on traditional distributed consistency technology and data verification mechanism; It is a consensus mechanism widely used in the instry chain at present.
advantages: it can work without token, and realizes second level consensus verification on the basis of mature distributed consistency algorithms (pasox and raft)
disadvantages: the degree of decentralization is not as good as that of bictin; The multi center business model is more suitable for multi-party participation

it has great advantages in using consensus mechanism to ensure data consistency (the consensus mechanism is first proposed by ripple, and the network transaction synchronization mechanism with data correctness priority. In the consensus network, no matter how the software code changes, if you can't reach a consensus, you can't enter the network, let alone fork)
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PS: a little black, although the consensus mechanism can absolutely ensure that there will be no hard bifurcation at any time. However, the disadvantage of this mechanism is obvious, that is, it is much longer than the current bitcoin network to reach a consensus with other nodes. In extreme cases, the consequences of disconnection in ripple consensus mechanism network are also very terrible

it is possible that one day after the power failure in your home, the whole system will no longer be able to reach a consensus with other rippled nodes (in fact, the consensus mechanism requires more than 80% of the nodes to acknowledge your data before your submission will be accepted by other nodes, otherwise it will be rejected by exclusive nodes), Even you can only empty all your 500 GB data and resynchronize to connect to other ripple nodes

so at present, the existing rippled end is not suitable for civil use (if it is commercial, the impact is relatively small. For example, RL's own rippled node is hosted in Amazon cloud data center. If it has no response for a long time, it can make high claims, and there is almost no break in that place except for large disasters). This is one of the aspects RL has always wanted to improve.

4. Several successful ones are block chain housing rental platform in xiong'an New District, SMIC block chain public service platform in Changsha high tech Zone, and block chain Real Estate Registration Platform in Loudi. Hunan has done a good job in the application of block chain technology in the whole country. There are mature and successful application cases in provincial capitals and prefecture level cities.

5.

A: the basic characteristics of blockchain

I. 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

Second, openness

the foundation of blockchain technology is 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

Third, 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

Four, safety

as long as 51% of all data nodes cannot be controlled, the network data cannot be arbitrarily controlled 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 transmission can be anonymous

6. In Outland, we choose nagland to mine
compared with
Hellfire Peninsula, most of which are magic iron. Although the fire particles can have a good price and market, the output is too small. Although the proction of soil particles is large, the price is really low, the use is little, and the market is not good
and the distribution of Hellfire mines is extremely unfavorable to circle mining, and most of them are distributed in the upper mountain area,
the water area of zanga swamp is large, and many ore spots are distributed in the water, which is the most criticized one for mining. After drilling in the water, we beat the fish of the caller, g two magic irons, and then slowly climbed to the shore and got on the plane, which is not a waste of time
moreover, zanga swamp is mostly magic irons, and the ore spots are few and the distribution is irregular
not to mention the taloka forest, There are too few mines in this map.
there are many mines in Dao Feng mountain, but the terrain is the most yellow and violent. There are lots of swords and stones everywhere, which is very unfavorable for aircraft flying. However, in view of the small number of people, it can be a good place.
shadow Moon Valley and void storm are too high. Some mines are in the strange pile and can't be found without digging. As soon as the hoe strikes, the sound is everywhere, and the strange will come to you, If you don't kill them, you can't dig them. It's a waste of time. So you don't choose to dig them in these two places. But these two places have fixed points, brush rich gold and gram gold, and herbal medicine. So I recommend the small one to keep watch. As for the large one to dig, forget it. The map is far away and it takes half a day to fly by.
2) tool demand
[[miner's hoe]]. Needless to say, the only one who has been following me since level 6 is him. I have destroyed all the furnace stones
[[big bird]] one, no matter whether you are a dragon or a fish, you can fly fast, of course, the birds in the arena are better
[[horse whip]] one, before reaching the mine, the refresh speed is faster than your flight speed, so he is still necessary
in addition, the highest mining skill is 350, which is absolutely the premise!! (3) recommendation of companion training skills
digging grass, also known as double mining, is not particularly convenient to switch. It is possible that a mine will leak when you dig grass, but it is definitely the most profitable combination of farmers, [[engineering eye]] + [[fast throttling particle aspirator]] can simultaneously display ore occurrences and air masses. However, there are not many air masses around the mine, but it's not bad.
skinning is still a bit interesting. The key is that the cobra in twilight Valley can peel the scales of Cobra. The scales are the material for physical output leg protectors, and only the snakes here and in shadow Moon Valley can proce them. However, it's obvious that the number of snakes in shadow Moon Valley or the surrounding environment is not as good as here. It's also a good choice to peel here if you find someone who is robbing ore.
4) mining time is recommended
generally speaking, it's best when there are few people, so I recommend
prime time: 3:00 a.m. - 9:00 a.m.
Silver time: 9:00 a.m. - 12:00 noon, 1:00 p.m. - 3:00 p.m.
if there is one person robbing ore, you should adjust the time by yourself, For example, if you don't see a mine after flying half a circle, please stop and wait for the mine at your feet to refresh, rather than continue to fly to the next mine. The reason is very simple

it's more profitable to dig fuser in the mainland (there's also a chance to proce all kinds of gems and arcane crystals, which sell well)
it's recommended to go to sirisus
Yashi insect nest, and brush one in the smallest hole, It's possible to brush 2 or 3 ore spots outside, a total of 5 mines. You can calculate by yourself. If you add 2 holes and mine 5 mines outside, don't enter the last hole
in Zora's nest, the holes near the alliance camp are usually painted with only one mine. If you want to mine at the entrance, don't go in. The other two holes are painted with two mines each. They are not painted outside, but the entrance will be painted
generally, the two holes with only one entrance are brushed with two mines, the holes with two exits are brushed with one mine, and one mine can be brushed outside

sometimes fuser silver can be turned into real silver, and sometimes pusher silver can be turned into gold, but it is very rare.

7. Maybe, if you dig up krypton gold again and again, you'll make a lot of money. It's usually less than 100 grams an hour.

8. The mines in Outland should be the most valuable, but it's hard to mine, and the mines in pandaliya are also good
under the ideal situation of big bird mount + no one grabs the mines with you + opposing camp doesn't kill you + familiar with the mines, more than 1000g per hour
under normal circumstances, e to various interference factors, 500g per hour is good, minus 200g per hour, the actual income is 300g per hour, If you are engaged in manual mining, you should also consider the fatigue factor. The more mining, the lower the efficiency. It is not recommended to use this lowest level method of earning money. Just like the wage earners in big cities, they can barely earn a living (point card money), but they have no future