Blockchain author Zhang Jian video

1.

From 2015 to 2017, the price of bitcoin increased from more than $100 to $17000, a 100 fold increase. Today, the market value of various numerical currencies is more than 700 billion US dollars. The myth of their benefits is not nonsense

but there are many things behind the chaotic digital currency. You may ask why air currency can be listed on the stock exchange? It's very simple. The exchange also has to charge a part of the fee. Raise the price and then sell it to make money. So the question is, how to identify air currency

first of all, you need to look at the projects behind the digital currency and see what their team background is. Generally speaking, teams without experience in the instry tend to earn money, but how much experience do they have? It is better to be able to participate in the construction of Ethereum and bitstock communities. Such a team is often more reliable. This requires investors to have a certain screening ability to identify good or bad

secondly, there is no way to implement many projects. How can we identify them? In addition to the ability of the team, we also need to see the feasibility, which requires us to systematically learn the knowledge of bitcoin and blockchain. For example, Zhu Jiawei, the COO of fire coin network, learned the blockchain from 0 to 1, and clearly described the development process of bitcoin and blockchain in the form of audio and text. Besides, don Tapscott and Alex Tapscott's "blockchain revolution" are worthy of careful taste

moreover, the bubble of digital money is very large nowadays. In the bubble, it is not difficult to make money, but the key is not to be greedy. Long term holding is not good, but it can be operated in a short term. You can make money if you want. However, the key is that people are all profit-making and greed is their nature. Therefore, many people do not accept what they see. They originally made money, but later they lost everything. The gain is not worth the loss. Therefore, it is necessary to control greed

2. Recommend an introctory book, blockchain, written by Zhang Jian, and then you can read more information about blockchain. In fact, you can understand the current market. If you want to speculate in money, you can download a blockchain app store first, which collects all the necessary software for money speculation in the market, including trading house, wallet, information, community and other software. It is not particularly convenient for users who want to get started. You can search the Internet for beestore.

3. Zhang Jian, founder of fcoin, works in the Ministry of instry and information technology. You ask him if it's MLM. The fcoin digital exchange is the originator of the stock market economy. Look up more information. Don't ask this question next time.

4.

Blockchain has become a hot outlet. Although only focusing on the outlet will often lose a piece of forest, any change of the outlet will give birth to new dividends. At this time, the word "change" spread rapidly: investment institutions, hedge funds, listed companies, academia, top technicians and ordinary job seekers were all involved. A large number of newly established investment institutions swarmed into this magnificent investment feast, and the competition for talents has become a key to the current layout of blockchain. So, who will lose and who will win in this game

capital running: it's not surprising that tens of millions of yuan of financing has entered the blockchain market

how fast is the speed of capital running into the blockchain market

"the most popular programming languages for blockchain development are C + + and go, and talents proficient in cryptography and distributed computing also have inherent advantages for blockchain development." Ding Song said, "I haven't studied blockchain, but I have studied it for a long time." For the new blockchain training institution, Ding song disclosed that the salary offered by the company is also very "special": in addition to a small fixed salary, the company takes 0.1 to 0.35 bitcoins as a floating bonus every month. Recruitment, "fried currency" has become a bonus

"take bitcoin as a salary. To put it bluntly, even salary is full of uncertainty, just like this instry. I think I'm young enough to gamble, but I can't see the future clearly. " In Ding Song's opinion, a hot new thing will naturally be mixed with irrational bubbles, but what will eventually remain is something of real value. But what's the chance of winning if you blindly invest

5. I don't know what you mean by open net, that is to say, his wallet will always open, right? If so, it's your fantasy.

6. Recently, it's said that 5.1 will open the Internet and make all cloud family members become middle class. It's a daydream. It's unreliable to promise you great wealth. Zhang Jian is in prison.

7.

Before the era of blockchain, Nick Saab first proposed the concept of smart contract in 1996: a set of agreements defined in digital form, including agreements on which contract participants can execute these agreements< the basic idea of smart contracts is contracts (special transactions) that can be executed automatically (event driven) and written in code form on the blockchain

since the establishment of Ethereum smart contract, more than 90% of the contracts have been used to issue tokens, and the implementation of relevant business scenarios is still good. What is the future of smart contract? Here you can see the Bytom chain that just released the news and launched the smart contract. As the first public chain project to release AI consensus algorithm in MIT, Bytom, the original chain, released an intelligent contract based on utxo model on the 26th after the main network was successfully launched in April

different from Ethereum smart contract built on account model, Biyuan chain is the first public chain in the whole blockchain instry to build smart contract on utxo model. Biyuan chain also transforms and deepens utxo to support the operation of multiple assets. In addition, compared with the original chain, the smart contract adopts its own equity language, which is a Turing complete and interpretive high-level language. It can easily compare the assets on the original chain for operation, and flexibly integrate into various asset business scenarios

in addition to the release of contract language, more than the original chain has also released multiple contract templates, which are directly attached with clear business meaning. From these contract templates, we can directly see the scene of future commercialization landing, and can extend the imagination in a wider range

currency transaction contract

through this contract, users can trade a variety of assets in Biyuan chain and other people without going through a centralized organization. That is to say, some assets can be locked through the contract. Only when other users enter the specified amount of assets, can they unlock these assets

for example, a decentralized exchange is built on the basis of contract, through which the two parties who want to exchange different assets in different currencies can be matched directly. The transaction speed is fast, and only a very small transaction fee is charged

third party trusteeship contract

under the contract template, users can transfer the specified assets to the third party's account, and the third party decides whether to call the specified account or return to the original account. The third party trust trust trust agreement stipulates that the third party institution can only transfer the assets to the designated account or return to the original account, which prevents the possibility of the third party account from stealing. In the business scenario, it can be expected that an asset custody platform can be built on the basis of the trusteeship contract of the third-party trusteeship institution in the future, which can ensure the custody, transaction and circulation of users' assets through the double trust of the trusted third party and the contract

mortgage contract

that is, the borrower will borrow the assets, and the lender will mortgage the assets into the same contract, and the lender will obtain the borrower's assets. If the lender fails to return the borrower's assets at a certain block height, the borrower will automatically obtain the lender's mortgage assets

call option contract

in this contract, the asset issuer can sell an asset at a certain price, and the buyer can buy the asset at that price. When it exceeds the height of a block, the asset will automatically return to the asset issuer

from the above design of smart contract, we can see some advantages:

firstly, a variety of templates with business meaning provide convenience for the upper layer to build DAPP, and some core business processes can be realized without too much development; Secondly, compared with the original chain, smart contracts issuing assets have templates. Compared with different developers, the security risk under the standard template is much lower. In addition, the contract will be invoked as a sub contract than the original chain when creating the intelligent contract. The contract template changes or errors that will be invoked in the future will not affect all completed intelligent contracts, which is of high security value for the early intelligent contracts. p>

we can understand that using the ratio chain of the extended utxo model butxo to interact with assets as a new form of utxo not only avoids the emergence of data overflow and other vulnerabilities in the Ethereum account model, but also has flexibility, diversity and controllability

for Biyuan chain, the release of smart contract also marks the determination of its core, which will further promote the commercialization of the project

8. The essence of blockchain is a decentralized accounting system. Bitcoin is a digital currency on the system. Bitcoin is the representation of accounting. Blockchain is a system composed of credit records and clearing of credit records. You can see Zhang Jian's "blockchain" for a detailed introction. The future impact on society will be more profound than the Internet, also known as the value Internet.