Blockchain classic sentences

2.

I have seen your question. In which aspects can blockchain be applied? Below by the small series to answer for you

bitcoin is the first specific application of blockchain. It was proposed in a paper by one person or a group of people in 2008. Bitcoin uses blockchain to send digital messages to bitcoin, and the name of bitcoin is bitcoin, without the intervention of a third party middleman

However, bitcoin is not the only application of blockchain, as follows:

1. Financial field: the application of blockchain technology in the financial instry can eliminate the third-party intermediary link, realize the point-to-point direct docking, so as to greatly rece the cost and quickly complete the transaction payment

2. Internet of things and logistics: blockchain 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

3. Public service: blockchain is closely related to people's proction and life in public management, energy, transportation and other fields, but the centralization of these fields also brings some problems, which can be transformed by blockchain

4. 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

5. In the field of insurance claims, insurance institutions are responsible for fund collection, investment and claims settlement, and often have higher management and operation costs. Through the application of smart contract, there is no need for the applicant to apply or the insurance company to approve. As long as the claim conditions are triggered, the automatic claim settlement of the policy can be realized

6. Public welfare field: the data stored on the blockchain 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

the above is for your reference only, hope you can adopt it, thank you

3.

The

blockchain is a technical solution to collectively maintain a reliable database through centralization and distrust in the past
generally speaking, blockchain technology refers to a way for the whole people to participate in bookkeeping. There is a database behind all the systems. You can think of the database as a big ledger. So it's very important who keeps this account book. At present, whose system will keep accounts, wechat's account book is Tencent's account book, and Taobao's account book is Ali's account book. But now in the blockchain system, everyone in the system can have the opportunity to participate in bookkeeping. If there is any data change in a certain period of time, everyone in the system can conct bookkeeping. The system will judge the person who has the fastest and best bookkeeping in this period, write the content of his records into the account book, and send the content of the account book to all other people in the system for backup. In this way, everyone in the system has a complete account book. This way, we call it blockchain technology
now, blockchain technology will be very popular, especially in the financial sector. Ant finance, laikelib, Wanda, Ping'an and Minsheng have tried blockchain projects one after another, and European crowdfunding is in the forefront of using blockchain technology. The most successful case is digital currency

4. Blockchain games mainly refer to the blockchain applications in DAPP, which belong to the game category and need to interact with various blockchain public chains to a certain extent. Blockchain Games began to emerge in November of 17, with a very short history. Compared with mature games, the current playing method is quite simple. In the view of the instry, many games are even just a capital disk wrapped in the game coat
according to the classification of cryptogames, hot potato, Collectible transaction, spinach and Ponzi are the main game playing methods among the online blockchain games. The most popular games are hot potato games, including two popular games recently - cryptocelebrities and cryptocountries. There are 35 collections and transactions, ranking second, mainly represented by cryptokitties. Spinach and Ponzi are 17, ranking third, with etherroll and etheremon as the star procts
blockchain games also use a variety of themes, from cats, dogs, dragons, pigs and other animals to people, cars, countries, teams and so on
blockchain game 1.0 era
time: November to December 2017
main playing method: Collection + transaction
representative works: cryptokitties, cryptopunks
blockchain technology gives uniqueness to players' digital assets. This graally leads to the concept of NFT (non fungible tokens). The uniqueness and scarcity of people's assets in blockchain games will not change with the game itself. The concept was first applied by cryptopunks, which was launched by larva labs in June of 17. The system randomly generates 10000 punk avatars, which are put on Ethereum through smart contracts and distributed to players for free for trading
when axiom Zen studio added attributes, reproction and auction functions to NFT, cryptokitties was born. People can buy kittens with different attributes, breed with other cats, or sell their own cats through Dutch auction. Kittens with rare and unique genes are wildly sought after by people, and they get a high premium
people continue to develop on the basis of cryptokitties, adding accessories and combat functions, as well as gold digging, feeding, and looting
blockchain game 2.0 era
time: December 2017 to January 2018
main play method: Ponzi like
masterpiece: etheremon
at the beginning, etheremon's play method was very simple and crude. After a player bought a pet, as long as someone bought the same pet, the player could get a small part of eth reward. The game team quickly made a profit of about 2000 eth in a week. Then completely change the way of play, successfully transformed into a collection + combat game. This kind of Ponzi like game was quickly imitated by other manufacturers, and many imitators such as ethertanks and ethertanks appeared<
blockchain game 3.0 era
time: January 2018
main play method: fixed price, forced price hot potato mode
representative works: cryptocelebrities, cryptocountries
players buy encryption celebrities (Nakamoto, musk, etc.) and encryption countries (Japan, the United States, etc.), e to the uniqueness of assets, Subsequent players can only buy from asset owners at a higher price. The price is forced to rise, and the platform earns part of the price difference. At present, the country with the highest price is Japan, about 700 eth, and the most expensive celebrity is Elon Musk, who is worth about 200 eth
blockchain game 4.0 era
time: February 2018
main playing methods: combination of multiple mechanisms
representative works: world.mycollect, cryptocities
in the game, multi-level sales and sharing, player exploration (randomness), lottery, resource uniqueness and other playing methods are adopted. In cryptocities, for example, players can buy countries, continents and the world to "conquer.". The player who conquers the world can get 1% of the transaction volume of the continent and the country, and the player who conquers the continent can get 1% of the transaction volume of the country. In the future, players who conquer the country can get 1% of the transaction value of their subordinate cities. When exploring a new city, players have a chance to explore gems and get eth rewards
at the same time, spinach games also emerged. The high transparency of blockchains makes it easier for them to gain the trust of investors. The more famous ones are etheroll and vdice. They play simply and rudely. Players spend a certain amount of eth to bet on a certain number. When the number randomly generated by the system is less than that number, they can get profits
in addition, there are RPG (ethercraft), battle games (etherbots) and binary (ethermeng king), etc
2
advantages and disadvantages of blockchain games
throughout these successful cases, we find that blockchain games do have unique advantages:
high degree of trust: trust is quickly established through open source contracts, the use process is completely transparent, and the information is completely symmetrical. Fairness: data can not be tampered with and rules will never change. Assets belong to indivial players: Players' assets will not be lost with the decline of the game. Strong community attribute: blockchain itself has strong transaction and community attributes
of course, the current blockchain game is also in its infancy, with obvious disadvantages:
unable to interact in time: there are uncertain waiting time and congestion in blockchain transactions, so it is difficult to form timely interaction between players. The cost of sending instructions is high: every time the instructions are sent, gas will be consumed, while the price of eth still makes the cost of gas relatively high. Immature development environment: at present, Ethereum's virtual machine and programming language solidness are the most mature development environment in many public chains. But compared with other popular languages, it is still very immature
3
Gamification will boost the implementation of blockchain
in traditional desktop online games, manufacturers constantly encourage new players, leading to inflation, and the real value of all assets of a game account is often far lower than the players' investment. After the emergence of mobile games, the mode of props binding account and account binding ID card soon became popular. This also makes once the player decides to leave a game, he must give up all the virtual assets in the game. The emergence and continuous maturity of blockchain technology will make the decentralized formulation of game rules and decentralized storage of virtual assets technically feasible. The convenience of virtual assets on the chain also makes the blockchain easier to land in the game scene
cryptogames believes that the development direction of blockchain games, or the development direction of classic games (like basketball, football and chess, once the rules are determined, they will last forever), It must be "decentralized":
the rules are determined by the players through negotiation, and the players supervise each other to ensure that the game is carried out according to the rules. All the props used in the game are owned by the players themselves. If someone breaks the rules or is not happy with the game, they can go away directly. There is no centralized organizer in the game itself.
the popularity of cryptokitties has greatly promoted private wallet, Blockchain game, as an early application of blockchain, has rapidly promoted the popularity of blockchain. Similarly, the use of game development experience and game design concept to develop a game

5. 1. What is blockchain
blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. The so-called consensus mechanism is a mathematical algorithm to establish trust and obtain interests between different nodes in the blockchain system [1]
2. What is a concept
concept has two basic characteristics: Connotation and extension. The connotation of the concept refers to the meaning of the concept, that is, the unique attribute of the object reflected by the concept. For example: "goods are labor procts for exchange.". Among them, "labor procts for exchange" is the connotation of the concept of "commodity". The extension of the concept refers to the scope of the object reflected by the concept. That is, things or objects with attributes reflected by concepts. For example, "forest includes shelter forest, timber forest, economic forest, firewood forest and special purpose forest", which is to explain the concept of "forest" from the perspective of extension. There is an inverse relationship between connotation and denotation of a concept, that is, the more connotation a concept has, the smaller denotation it has; vice versa. A more understandable explanation: the connotation of the concept refers to the meaning of the concept. There are necessary conditions, that is, objective things (objective objects), among which there is only one necessary condition and N sufficient conditions. The more conditions, the smaller the extension of the concept. Conditions are functional. For example: the cup needs space to carry. And it is used to hold water, wine and other liquids. Moreover, it is a kind of utensils (the defined items cannot be directly or indirectly included in the definition items), so the meaning of the concept of cup is: utensils used to hold water, wine and other liquids. And if we know the sufficient conditions, we can roughly dece the things or objects. Because it must be connected with the objective things. The functions of concept include judgment, description, attribute, category, definition (conceptual clarity), etc

the description of concept in China is: concept is avant-garde, novel, trendy, with future trend, background and picture. The concept has the strict fixed content, also has the certain fuzziness. Concept is not real, but imaginary. We should use concept to think and use concept to show its authenticity. The pattern of consciousness is endless. The more thorough the images are, the better it will be for us to enter a fine and infinite field. Otherwise, one thing will always be reced to another
from the perspective of form: ideas are more advanced, concepts appear in the form of words, and ideas usually appear in the form of a complete sentence. But in the same form; They are all based on Chinese and symbols. Therefore, it can be understood that the concept is a brilliant idea that condenses more information. Therefore, the concept is imaginative and pictorial, while the scientific concept is systematic. Concepts must also be comprehensible, so they are universal and objective.

6. You can use the battery manager of Tencent mobile phone manager to maintain and manage the battery
Tencent battery manager will intelligently rece the CPU frequency and keep the minimum power consumption
in normal use, Tencent battery manager will maintain a stable CPU frequency,
keep the best power saving state without affecting the experience; When playing games,
battery manager will give full play to the powerful performance of CPU and improve the fun of playing games.

7. First, the POS + pod hybrid consensus mechanism of the exclusive game community greatly improves the efficiency and consistency of the public chain network
Second, community autonomy. All decisions are made by community members. Under the hybrid consensus mechanism, both POS krypton players and pod technology players have higher yield and discourse power, which effectively avoids the impact of centralized computing power and financial resources on the whole game ecology, and thus reces the risk of bifurcation. If a node wants to propose a bifurcation for a certain protocol or standard, all nodes need to participate in the voting. If the pod + POS weighted value of the voting result exceeds 50%, the system defaults to the chain with high weighted value as the effective chain, and all nodes will migrate to the new chain mining at the time agreed in the voting result
thirdly, because game players have requirements for the performance and bandwidth of hardware devices, vs public chain sets the node players involved in accounting into two categories: full node and light node. Players can manually switch between full node and light node. Generally, light node mode is adopted in the process of the game to provide more hardware support for the game, and full node mode is started after the end of the game and ring the hang up period
fourthly, all the transaction rights in the game come from the players. Only after the players are authorized by the exclusive secret key, the game assets can be circulated. At the same time, all transaction data are encrypted by ECC (elliptic encryption algorithm), which is a modern cryptography technology, to ensure the information security of blockchain
fifthly, as a vertical public chain in the game field, vs will first complete the overall solution of decentralized game proction, virtual asset distribution and token economy operation. It includes game engine, developer environment, standard SDK, etc., which reces the difficulty and threshold for game developers to enter blockchain game development from various environments, greatly reces the workload and cost of game development team, and also makes vs public chain highly scalable.