The key to blockchain digital civilization
2017 is the first year of blockchain outbreak, and 2018 will be the first year of blockchain landing
what changes has blockchain brought to the world from 1.0 to 3.0
the development of blockchain can be divided into three stages: point-to-point transaction, smart contract and pan blockchain application Ecology (token economy)
blockchain 1.0 era: the era of digital currency return rate is the king, Digital currency trading is the most important form for people to participate in the blockchain. At this stage, few people really pay attention to the application value of digital currency, let alone the practical value of blockchain technology behind it. People's focus is on the rate of return of digital currency, which is equivalent to buying stocks on another disk. However, this "stock" is more active, and the rate of return is amazing. Of course, it is also full of sorrow
blockchain 2.0 era: smart contract provides infrastructure support for upper layer application development
"smart contract" era, which is the real programmable blockchain, usually represented by "Ethereum", supports Turing's complete scripting language at this stage, It provides the necessary infrastructure for developers to develop any application on the basis of their set "operating system", and realizes the application landing of virtual world. The biggest contribution of blockchain 2.0 is to completely subvert the traditional concepts of currency and payment through smart contracts. In the era of blockchain 2.0, blockchain has formed a trust foundation based on the characteristics of traceability and non tampering, which provides a trusted execution environment for smart contracts and makes it possible for contracts to be automated and intelligent. The biggest difference between the smart contract and the traditional contract is that it is not restricted by the law of the real society. For the contract subject to automatically execute the agreement after triggering the contract terms, However, the arbitration platform no longer judges the execution result in the smart contract, but undertakes the responsibility of execution
blockchain 3.0: the subversion of business lies in the transformation of proction relations
we are now at the junction of 2.0 era and 3.0 era, which can be regarded as an ideal vision for the future virtual digital currency economy, In blockchain 3.0, people can really realize the asset on the chain, build a variety of applications in a large underlying framework, build a platform with no trust cost, super trading ability and extremely low risk, which can be used to realize the increasingly automated distribution of physical resources and human assets around the world, and promote large-scale cooperation in science, health, ecation and other fields
blockchain 2.0 constructs digital identity, smart contract and other infrastructure. On this basis, it hides the complexity of underlying technology, and application developers can focus more on application logic and business logic. That is to say, we have entered the era of blockchain 3.0, which is marked by the emergence of token. Token is the value transmission carrier on the blockchain network, which can also be understood as token or token
the greatest effect of token on human society lies in its transformation of proction relations. Joint stock companies will be replaced, and every actual participant will become the owner of proction capital. This new type of proction relations inspires every participant to contribute his proctivity continuously, which is a great liberation of proctivity. If this kind of business activity is mapped into the inflation of real society, as long as the former outperforms the latter, every token holder will gain over time
it's too early to talk about blockchain 3.0. Although blockchain has gone out of the conceptual stage, the current situation of blockchain technology development is that the underlying technology is not mature enough and the application scenarios are limited. On the one hand, consensus algorithm and other core technologies of blockchain still have room for optimization and improvement; On the other hand, the processing efficiency of blockchain is difficult to meet the requirements of some high-frequency application environments in reality. Moreover, the current mainstream blockchain technology platforms are all originated from abroad. Domestic blockchain technology service providers should patiently start from the bottom development, achieve independent and controllable technology, and strive to lead the development of global blockchain technology, which still needs a certain period of time
the final goal of the competition is to really concentrate on the research of technology and the development of practical application enterprises! According to my observation, among the various applications based on Ethereum, SEC social e-commerce chain has a great chance of landing, which is likely to become a killer application. In the official account of SECblock, weekly weekly reports show that the team is working hard. p>
Many small white just admission, was the private key, public key, address, and other relations confused. Some of them even lost their private key. They had money on the address, but they just couldn't get it out. Today, Xiao will try to figure out the relationship between the private key, the public key and the address
The relationship among < H2 > private key, public key and address is as follows:the private key is converted into (generated) public key, and then converted into address. If there is bitcoin or integrity coin on an address, the private key converted into the address can be used to spend the above integrity coin. The generation of public key and address depends on private key, so private key is the most important
mobile wallet is the same, but the file management method of mobile phone is not as convenient as computer. Therefore, the general mobile wallet will provide a function called or similar to "export private key". Through this function, the private key can be exported in various forms
for example, bitcoin mobile wallet can be exported as a two-dimensional code, which can be printed or scanned on paper. When replacing a mobile phone, install a bitcoin wallet and scan the QR code to migrate bitcoin. Bitcoin mobile wallet and trustcoin mobile wallet can be exported as a clear text string and printed on paper - this is paper wallet
paper wallet allows users to spend your bitcoin or trustcoin at any terminal with bitcoin or trustcoin wallet
because the wallet is lost or damaged, the private key will be lost, and the transfer right of the digital currency will be lost completely. To prevent such tragedies, you should always back up the data in your wallet. In addition to the address, all the private keys are saved ring the backup
< H2 > summary-
the private key should be protected to prevent loss and forgetting. When the mobile phone clears the information, it is best to it by hand, but do not disclose it
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you should prevent your wallet from being lost or damaged, resulting in the loss of your private key and the loss of the transfer right of digital currency. Otherwise, you will not be able to withdraw more money, which is not useless
At present, there are quite a lot of MSB licenses in the United States. The bigger ones are Huo coin, coin an, and the smaller domestic second and third tier exchanges are all licensed. At present, the licenses are also a trend in the future. They are all moving towards standardization, and there are more than 20 applications for licenses every month
for example: US MSB, Estonia, Australia
Before you go abroad, you need to exchange RMB for foreign currency. There is also a quota. With the blockchain, you can take a U-disk to go out and exchange it for local currency. The quota is unimaginable
asymmetric encryption algorithm is a function that converts the original plaintext file or data into a series of unreadable ciphertext codes by using an encryption key. The encryption process is irreversible. Only holding the corresponding decryption key can the encrypted information be decrypted into readable plaintext. Encryption enables private data to be transmitted through the public network under the condition of low risk, and protects the data from being stolen and read by the third party
the core advantage of blockchain technology is decentralization, which can realize point-to-point transaction, coordination and cooperation based on decentralized credit in a distributed system without mutual trust by means of data encryption, time stamp, distributed consensus and economic incentive, so as to solve the high cost and low cost of centralized institutions Low efficiency and data storage insecurity provide solutions
the application fields of blockchain include digital currency, token, finance, anti-counterfeiting traceability, privacy protection, supply chain, entertainment, etc. with the popularity of blockchain and bitcoin, many related top domain names have been registered, which has a great impact on the domain name instry.
I may have heard the saying "artificial intelligence is proctivity and blockchain is proction relationship", which also shows the development potential of regional chain
on the public blockchain, there can be no digital currency. So regional chain fire, digital currency is the same, and the Internet fire is a reason.
1. League of heroes
League of heroes, also known as lol, China's LPL has won the championship of the world finals for two consecutive years, which makes the players who love League of heroes start a new journey again, which makes the popularity of lol in China set off a wave of upsurge. Although lol has been 10 years, the popularity is not as good as before, but it is not comparable to the popularity of other networks
2, ngeons and warriors
the game of ngeons and warriors is called DNF for short. DNF has been tested for 11 years since 2008. The unique abyss mode in the game is not found in other online games. It is also a time when the public players are excited to brush the abyss, but now DNF graates have many activities and awards, So many players have abandoned DNF one by one, but there are still a lot of civilian players, the heat is also leverage drop
3, fortress night
fortress night is a third person shooting game, which has landed on the host platform, PC platform, mobile game platform and NS platform. So the platform has this game, the heat is incomparable to other design games. Chicken eating mode in the game is also very popular
4, crossing the line of fire
crossing the line of fire is also known as cf. in 2007, the game was tested internally in China, but the popularity was very hot when it was just launched. At that time, no game known as 300 million mouse could catch up with CF, but CF has experienced more than ten years. Since the introction of heroic weapons, the popularity has slowly started to decline, It takes 888 yuan to get a hero weapon, which makes many civilian players stop. Moreover, the performance difference between civilian weapons and hero weapons is too big, which makes many players retreat
5. World of Warcraft (including nostalgic clothes)
world of Warcraft is the oldest game. Warcraft also launched the nostalgic clothes in August of 19. The popularity of the nostalgic clothes just launched in this game has exceeded its own popularity several times. All servers of the nostalgic clothes need to queue up to enter the game on weekends, That is to say, how many new players and old players come back to experience the past
6, survival of the Jedi
survival of the Jedi game was only tested in March of 17. Survival of the Jedi game has experienced steam's weekly sales champion, the champion of 55 consecutive weeks. You know, there are 52 consecutive weeks in a year, that is to say, survival of the Jedi has been the champion of sales for one consecutive year, and no game of steam's weekly sales champion can be more than four consecutive weeks, And the Jedi survival game has this amazing history
7, ff14
Final Fantasy 14 this game was officially tested in China in 2014. This game has experienced the best new MMO Game Award, the most popular MMORPG award, the best picture award, the best sound effect award and the must play game award. Can be said to be a very powerful online game
8. Anti terrorism Elite: Global offensive
a first person shooting game jointly developed by valve and hidden path entertainment was officially launched in Europe and the United States on August 21, 2012, and the national service press conference was held in Beijing on April 11, 2017. The game is the fourth work of the anti terrorist Elite Series (excluding Neo, online and other derivative works)
9, legend of hearthstone
Legend of hearthstone is a set exchange card game. The game background is set to 9 different hero classes in Blizzard's Warcraft series. What the players need to do is to form a strong card group to defeat the opponent's card group
10, watch vanguard
watch vanguard is a first person shooting game developed by blizzard. Every hero in the game is his own weapon and skill, and the innovative shooting game has attracted many Blizzard players, especially the painting style in the game
the most outstanding advantage of blockchain is that once the record is written, it is sent to multiple distributed blocks, which makes it easy to be deployed on different nodes on the network. At the same time, each record contains its unique hash value signature, which makes them unable to be tampered with
through the blockchain network, the distributed ledger can record more abundant and comprehensive transaction history, rather than only specific users can see it through the internal system or blacklist as before.