Yidao blockchain
blockchain refers to the technical solution of collective maintenance of a reliable database through centralization and distrust in the past, and it is a technical way for the whole people to participate in bookkeeping. Previous bookkeeping methods were all centralized and needed centralized intermediary, whether it was traditional government, financial institutions, notarization institutions or emerging e-commerce platform and online payment platform
in economic hypothesis, information is sufficient. In fact, it is precisely because of insufficient information that there are very large intermediaries. The existence of intermediaries increases the transaction cost and raises the transaction threshold. In essence, blockchain technology is a large-scale collaboration tool. It makes direct value transfer possible by using pure technology for the first time, and continues the trend of Internet decentralization and disintermediation. Disintermediated blockchain technology will greatly subvert the information intermediary instry
blockchain technology is the basic technology for building bitcoin data structure and encrypted transmission of transaction information, which realizes the issue and transaction of bitcoin. The core of blockchain technology is that all the current participating nodes jointly maintain the transaction and database, so that the transaction is based on the principle of cryptography rather than trust, so that any agreed parties can directly carry out payment transactions without the participation of a third party
technically, a block is a data structure for recording transactions, reflecting the capital flow of a transaction. In the system, the transaction blocks are connected to form a main chain, and all the nodes participating in the calculation record the main chain or part of the main chain
a block contains the following three parts: transaction information, hash formed by the previous block and random number. Transaction information is the task data carried by the block, including the private keys of both parties, the number of transactions, the digital signature of electronic currency, etc; The hash hash formed by the previous block is used to connect the blocks and realize the sequence of past transactions; Random number is the core of the transaction. All nodes compete to calculate the answer of the random number. The node that gets the answer the fastest generates a new block and broadcasts it to all nodes for updating, so as to complete a transaction.
Blockchain is a kind of technology, which solves the core "trust" problem in the market economy and reces the trust cost between strangers to a very low level
there is one crucial thing in the market economy, which is "trust". Without trust, no deal can be established. When you go to LAICHANG to buy vegetables, if you don't believe that the pesticide content in vegetable is up to the standard, you won't trade with that dealer; If you buy a bottle of water in a small shop, the clerk will not sell you the water if he doesn't believe that the money you give is real
the traditional small-scale peasant economy is acquaintance economy, and the transaction scale is limited to people who are familiar with each other nearby. If an acquaintance deceives you, he will lose your social relationship and damage his reputation in the whole circle of acquaintances. We believe that acquaintances are less likely to cheat us than strangers
therefore, once we are beyond the scope of acquaintances, we need to use a high cost to identify whether a stranger will cheat me and how to avoid the risk of being cheated. This situation will hinder the transaction and restrict the transaction
in addition, different races, nationalities, cultures, religious beliefs and so on will naturally have this kind of trust problem
in the market economy, why can there be so many transactions between strangers? Because of the birth of a new mechanism to solve the problem of trust in strangers
so far, the most important mechanism to solve the trust problem is the "trust intermediary" organization and mode
as long as you and strangers trust a third-party organization, the trust problem between you can be solved through this third-party organization
this third-party organization, we call it trust intermediary. Both the government and the bank are trust intermediaries
you can sell the goods you have worked hard to proce to a stranger in exchange for a stack of RMB banknotes. It's because the credit of the note issuing bank and the guarantee of the authority of the government guarantee the currency value and effectiveness of the banknotes. Otherwise, sell things, in exchange for a few ordinary paper, who would like to
in the era of global village and Internet, the people who buy your things may be strangers who will not meet and thousands of miles away. Trust is lower, so Alipay assumes the role of trust intermediation. Buyers first pay the goods to Alipay's account. When they receive the goods, they confirm that they are OK, then they agree to sell the goods to the seller. Taobao and other e-commerce have been booming rapidly in just over ten years
trust intermediary is in a central position in the transaction system. All transactions should solve the trust problem through it
However, the cost of trust intermediary itself is often hugeas a trust intermediary, how much transaction tax does the government charge each year? What is the most profitable instry? Financial services. The annual profits of Alipay's ant suit are over ten billion. p> What does this mean? Both sides of the market actually pay a huge trust cost
if there is any way to cancel or greatly rece the trust cost, the transaction cost of the general public can be reced, and the profits can be greatly increased
so in the Internet era, blockchain technology is on the stage
it allows the trading party to get rid of the intermediary, solve the problem of trust among strangers, and greatly rece the cost of trust
the blockchain can be expanded on a large scale, the data is open and transparent, the data of each client is consistent, and even if some clients are destroyed, the data security will not be affected. These highly reliable technical features can solve the trust problem of strangers with low cost
this technology can be extended to all fields that can be digitized, such as digital currency, payment and clearing, digital bills, proof of rights and interests, credit reference, government services, medical records, etc
in the medium and long term, blockchain will be a revolutionary technology, which will bring about great social changes like the existing Internet, and has great investment value and money making opportunities
in the future, the companies that can combine blockchain with different scenarios to promote applications may be the next group of bat, the next Google, Microsoft and apple
as the first practical application of blockchain technology, bitcoin has been widely accepted and used all over the world. Millions of users and tens of thousands of merchants have accepted the payment of bitcoin as a digital currency, and the exchange value of bitcoin as a currency is growing. Even e to the consensus that the total amount is fixed and the long-term value is bullish, bitcoin has become a hedge asset similar to gold, and the price has skyrocketed
what benefits most from this is the domestic currency circle. In 2017, digital currency and related fund-raising activities were banned in China, which is quite negative in the eyes of ordinary people. In fact, the central bank's initiative to explore into cryptocurrency is the recognition of the core concept of digital currency. With this incentive, domestic enterprises will actively enter the instry and inject fresh blood into the instry, which is the most important
about this, you can see the reports of blockchain media, such as golden finance, coin easy to know column, chain news and so on.
blockchain is a decentralized distributed ledger database . The advantage of this distributed ledger is that buyers and sellers can trade directly without any intermediary. Everyone has a backup, even if you lose this, it will not be affected
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blockchain application field
1, financial field
blockchain has potential huge application value in international exchange, letter of credit, equity registration, stock exchange and other financial fields. The application of blockchain technology in the financial instry can save the third-party intermediary link and realize the point-to-point direct docking, so as to greatly rece the cost and quickly complete the transaction payment
2. The 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. This field is considered as a promising application direction of blockchain
3. The data stored on the public welfare field
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
4. In the field of insurance
in terms 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
What is blockchain game
there are many definitions of blockchain game at present, one of which is to write the core data into the blockchain and use the data on the chain as the source of random numbers. For example, in the previous game, the currency was decided by the game operator, but e to the decentralized characteristics of the blockchain, the transactions between currencies are transparent, and the transaction data are synchronized to each player. In this way, when the total amount of money remains unchanged, the game will get more value for money
what value can blockchain bring to the game
ownership and liquidity of game assets
on the blockchain, players can own assets in the game, and these assets have liquidity in a broader sense. In traditional games, the points, props, weapons and roles are often owned by the developers, so the centralized developers have more power to make drastic changes to these assets, or even dispose of them at will. These assets in the game can only be limited to the internal circulation of the game. Outside the game, it seems that there is no reuse value, and it is difficult to be given application scenarios again from the technical level
under the logic of blockchain, once the assets in the game are on the chain, these points, props, weapons and characters can completely belong to the player's blockchain address, and the player has ownership of this address and the assets below it. Then we can imagine a number of application scenarios:
1. Asset trading anytime and anywhere: a large number of games do not have the prop trading function. Of course, the original intention of this design is to avoid the confusion of the economic mechanism in the game, prolong the game time of users, and increase the income of developers. Assuming that the above is not the concern of developers, then "props on the chain + Mobile Wallet" can realize online and offline transactions of two users anytime and anywhere. You and your friends chat about a recent PC game ring dinner. Open your mobile wallet to see what kind of weapons and equipment each other has. The experience of completing a transaction is as simple as a wechat code scanning payment. When you come home in the evening, open the PC login game, and the transaction completion tool has already been lying in your equipment bar
2. Game asset reuse: after the assets are linked to each player's address, it is easy for developers to reuse the assets of other games for secondary transformation or cross game reuse. Spiderstore has a game called cryptocuddles, which is a cat fighting game based on encrypted cat. Players log in with their own Ethereum address, and the game will automatically get all the encrypted cats under the address. The role comes from encrypted cat, and only the fighting logic comes from cryptocuddles itself
3. New ways to get users: in traditional games, new games often need to get users again, or use old games to guide new games. Blockchain can break this way and rece the cost of getting customers. For example, the cryptocuddles mentioned above, all users of encryption cat are potential game players who can be directly converted. If the direct reuse of assets involves IP issues, developers can also design in this way. As long as the users who have cats in the encrypted cat can directly obtain certain rewards in the game, such as roles, treasure boxes, props, etc. the verification method only needs to log in with the address and read the data on the chain
in this way, a new game online can completely borrow the user drainage of the existing popular games. Isn't this kind of playing method actually a routine of issuing candy with forked coins and Airdropping new tokens? Using eth or EOS, the currency with the largest number of coin holders, to air drop their own token to the coin holders 1:1, so as to obtain users at a very low cost
spiderstore currently has more than 2000 DAPP games, accumulating hundreds of thousands of users who have played Ethereum games. If a new game needs to be promoted, the simplest way is to air drop game assets to these addresses, which is much more accurate than traditional advertising
1、 When people lose to a certain stage, there is nothing to be afraid of
failure is nothing to be afraid of. What you are afraid of is that you don't have the courage to face life, and you don't plan your debts rationally. How can you pay off your debts and start all over again? The shopkeeper will tell you something from his own experience
Second, avoid new debts. You can make a consumption record form by yourself. You can use paper, form or an accounting software every day. See where your daily consumption goes, what are unnecessary things, and what can be saved. This time don't use credit, card loans, flowers and other new debt to repay old debta word from Xin Laogao: it's a debt that can never be paid off to support the loan with the loan. Need to ensure that they are in a safe line, do not add insult to injury
Third, clean up all the debts now
and sort out all the debts now. From house loan, car loan and credit card loan to flower, water and electricity fee, property fee and friend loan. This will help you to have a clear understanding of your current situation and plan to repay your debts
Fourth, it means to make a repayment plan.
if the interest is paid first, the high interest will lead to the rapid growth of your debt, and you may not make money as fast as the debt. If you pay off a small amount first, you can see that the situation in your debt table is reced, which can rece a lot of anxiety
if the credit card is returned first, the overe record caused by the long-term non return of the credit card will affect your personal credit, which will have a great impact on your future loan
it's really not enough. You can negotiate with the bank to postpone the repayment, or use the minimum repayment. Generally speaking, as long as you are sincere and willing to repay, the bank will give you a little time