Review of Smart Contract Technology: What Is It Used For and How to Work With It? 759

smart contract technology

If not all the representatives of the crypto world heard about smart contracts, then probably most of them did. Therefore, it is so important to know the details of the work of this innovative technology of “smart contracts”, the concept of which was announced a couple of decades ago, but was not fully realized in 2014. What is it, how can it be applied in practice, and what future, thanks to smart contracts, is the industry waiting for?

(please, click the topic to scroll down to it)

  1. What is a smart contract?
  2. What is the advantage of smart contracts in practice?
  3. How to work with smart contracts?
  4. What is a smart contract for practice?
  5. How reliable is a smart contract?
  6. Conclusion

1. What is a smart contract?

A familiar look at the financial system changed in 2008 with the appearance of the first cryptocurrency, a coin that has a value that is not confirmed by physical assets. But year 2014 gave the mankind a way to regulate payments without the participation of intermediaries and such guarantors as lawyers, courts and other traditional institutions.

Intelligent contracts were enabled in practice by the blockchain. What is the essence of innovation? Smart-contracts are something like program code containing a complete package of information about an upcoming transaction. Logic is the simplest: it does not require the participation of a third party. If Mr. X wishes to transfer a certain number of coins to Mr. Y for a particular service, the transaction will occur automatically if the parties comply with the prescribed conditions. If they fail to be complied by any of the parties, the transaction will not take place.

Smart contracts do not provide for the presence and even potential participation in the relations of the parties of any arbitrator. Everything is extremely logical and simple – a smart contract, in fact, is no different from the usual contract, in which there are:

  • signatures of the parties that confirmed their agreement with the terms of the contract;
  • the subject of the contract;
  • the conditions under which the contract will be executed.

2. What is the advantage of smart contracts in practice?

The most important thing is the lack of the need to attract guarantors for the fulfillment of obligations. The parties do not need to apply to the notary, exchange and other third parties who by their signature / seal will attest to the intentions and obligations of the contract’s parties. Also, technology implies full transparency and security of information stored in the blockchain. As a result, the parties receive their benefits under the contract and do not pay the commission to intermediaries.

3. How to work with smart contracts?

In this regard, all the issues are fully answered by the Ethereum, known to all the crypto community. In it, the filling of a smart contract is intuitively understandable and accessible to everyone. On the official site Ethereum you need to download the purse, come up with your electronic signature and key. You can not only apply ready-to-use templates, but create code yourself.

4. What is a smart contract for practice?

The security guarantee provided by this technology allows investors not to risk when investing assets in the ICO. The investor had the opportunity not to rely on the success promised by the developers of the new coin, but to “insure” their funds by writing in the contract the condition for an automatic refund.

Technology is attractive in various areas, where contractual relations between the parties arise. Banks, companies involved in insurance, logistics, etc. are interested in it.

5. How reliable is a smart contract?

Since a smart contract is a program code, it is not without possible shortcomings. They can be associated with the complexity of its independent compilation, not always sufficient flexibility of the blockchain and insufficient scalability.

It should be noted that, in the event of an error in the contract, there are no methods for regulating the dispute. Everything is done by the program, and the court has no tools to evaluate the propriety of its incorrect work.

6. Conclusion

The technology of smart contracts has great potential. In fact, they can be used in absolutely any sphere of life. But in order to make smart contracts become commonplace, it’s still necessary to do a huge amount of work. To date, the most reliable and secure platform for entering into smart contracts is Ethereum.

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Buterin, Winklevoss and Others: The Future of the Digital Currency World According to Major Crypto Personalities 621

experts opinions on crypto

The crypto world has entered the new stage of its development, it has always been volatile, but these couple of weeks have been absolutely crazy: coins are jumping up and down, Bitcoin ETF is on its way, blockchain is taking over the world.

No doubt, crypto specialists and financial experts have a lot to say. Today we came up with a compilation of sayings from the stars of the cryptocurrency universe that we found particularly interesting and important.

The CEO of the crypto exchange Gemini, Tyler Winklevoss believes that the acceptance of cryptocurrency in the world as a means of payment equal to fiat will not happen in the next couple of years:

The vast majority of Wall Street firms are still not participating in the cryptocurrency market, which remains primarily a retail-driven market. This will change over time, but it will take time.

Pantera Capital’s CEO is way more optimistic on this issue. He sees great potential in the blockchain technology, and digital coins, according to him, are “superior form of currency.

Ethereum’s founder Vitalik Buterin wants cryptocurrencies to become more user-friendly and common in the everyday life. He also thinks it may become possible only in case the proper regulatory framework for crypto is developed by the state governments.

I want to be able to walk into a convenience store, get a card and pay a small fee to start using Bitcoin Cash,” he said.

The last, but certainly not least, is the CEO of BitMEX, Arthur Hayes, who has some serious doubts concerning Ethereum. According to his calculations, the price of the world’s #2 coin will drop lower than $100.

It is this moment,” he added, “that Ether goes from a 3-digit to a 2-digit shitcoin.

Although we are sure that experts know what they are talking about, the crypto world is way too unpredictable. We can only wait and see whether the abovementioned predictions turn out to be true or not.

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Vitalik Buterin Published 75 Tweets About Ethereum Casper 591

buterin talks about casper

This morning the founder of Ethereum blew up Twitter. To everybody’s surprise, he posted 75 messages about the Ethereum Casper, its features, the history of creation etc. In case you are unfamiliar with the term, Casper is a proof-of-stake protocol which Ethereum operates on.

Buterin didn’t forget to mention Vlad Zamfir, “the Face of Casper”.

We remind you that Vitalik Buterin has recently criticized Bitcoin ETF, calling it not as important as other pressing issues.

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A Review of the Odyssey Project or How to Transfer the Sharing Economy into Blockchain? 910

According to many experts, in the next couple of decades humanity will switch to the economy of general use (or sharing). This will concern many things that are accepted today (car, real estate, etc.). Within the framework of this article, we will tell you how this, not yet implemented common-use economy can be transferred to the blockchain. So, the review of the Odyssey cryptocurrency.

(please, click the topic to scroll down to it)

  1. What is the Odyssey cryptocurrency?
  2. Odyssey in figures
  3. Forecasts
  4. Conclusion

1. What is the Odyssey cryptocurrency?

The main mission of the project is to combat the centralized sharing economy. In the near future, as the developers themselves assure, joint use will be quite ordinary, and personal possession, on the contrary, will become an unacceptable luxury. That is, within the framework of this economic model, You will not personally have anything, but You will be able to use what you want. Such an approach should lead mankind away from the consumer society and substantially raise the overall level of well-being.

This project comes from Singapore; its main idea is the creation of a decentralized version of the economy of the future, which will be oriented towards the common use of various things. The developers want to significantly reduce costs and increase the efficiency of marketplace applications, as well as create their own Odyssey system.

The main consultant of the project is the general director of TRON Justin Sun. Major Odyssey investors are:

  • Eddie Wu, Alibaba’s co-founder;
  • investment trust Vision Plus Capital;
  • TRON Foundation, etc.

The main principles of Odyssey:

  • everything can be combined and shared;
  • everyone has the right to possess information;
  • all participants in the system can count on income, which will depend on their initial contribution;
  • there should not be a monopoly in the sharing economy;
  • the new economic model will be effective only if it becomes autonomous.

Summarizing, we can say that the Odyssey system is a kind of marketplace for sharing, based on blockchain technology.

2. Odyssey in figures

This coin appeared relatively recently, only in early 2018. If you look at the chart, you can see that Odyssey’s currency exchange rate has significantly decreased from $0.09 to today’s $0.003.

The total issue is 10 billion tokens, now 4.75 billion are issued. Market capitalization as of mid-August 2018 is slightly more than $17 million. The coin takes the 244th place in the global rating of CoinMarketCap.

3. Forecasts

The Odyssey (ocn) cryptocurrency is now showing a negative yield, it is, to a large extent, related to the general trend in the market. It is rather difficult to predict the price of cryptocurrency in such conditions. Nevertheless, this project is potentially promising for the following reasons:

  • developers follow the schedule written in the project road map;
  • in the future, it is planned to create its own stock exchange;
  • the team actively works on the project, periodically consults the community through polls, voting, etc .;
  • the Odyssey project is closely connected with TRON, which ranks 12th in the rating of all cryptocoins;
  • economy of common use is the vector where the movement of mankind has already begun.

4. Conclusion

If you plan to invest in Odyssey, you should count on a long time, because the project is still too young and for its development there is still a lot to do. The sharing economy is also not tomorrow and not even in a year will become the norm, so that the global Xs in the near future should not be waited for. Also do not forget about diversification of your investment portfolio, this will significantly reduce the risks of a complete loss of capital. The Coin Shark continues to monitor the news of the cryptocurrencies and look for new promising projects.

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Top Books About Blockchain and Cryptocurrency Which Are Worth Reading 2962

top crypto books

Cryptocurrency and blockchain became so popular that people started writing books about them, and if more than 1,000 books on this topic have already been written in the West, then in the CIS countries people came to this only in early 2017. Such literature makes it possible to more clearly understand all the nuances, positive and negative aspects of the blockchain technology. Below we compiled a selection of the best books about digital currency that will help you get all the knowledge you need about the crypto world.

1. “Bitcoin for Dummies” – Williams, 2017.

This book will tell you in detail about all the subtleties of working with digital currency, the authors touch absolutely all vital aspects of the blockchain. Having studied the stated information, you will get knowledge about the nature and formation of bitcoin. One of the main advantages is that it describes all the risks that keep up with the cryptocurrency. The author focuses attention on cyber security. Having studied the stated information, you will master the system of blockchain’s work, you will be able to protect yourself from cyber scammers and correctly implement the cryptocurrency at the exchange.

2. “Digital Gold: Bitcoin and the Inside Story of the Misfits and Millionaires Trying to Reinvent Money”- Nathaniel Popper, Williams, 2016.

Nathaniel Popper, together with Williams, wrote an amazing and most truthful story about the emergence and implementation of bitcoin in the general turnover, as well as those individuals in its history who hindered and helped it. The story goes on behalf of different people: Satoshi Nakamoto, the brothers Winklevoss, various millionaires and bankers. An important component of the book is the analysis of the reasons for which the blockchain entered the general circulation.

3. “Blockchain Revolution: How the Technology Behind Bitcoin Is Changing Money, Business, and the World”- Don Tapscott, Alex Tapscott, 2017.

The book narrates about the cryptocurrency as a means of business breakthrough. It can be divided into two parts: in the first there is a story about the system of work of the blockchain, its strengths and weaknesses, and also there is an analysis of all those pressing financial problems that can be solved with the help of blockchain. In the second part there is interesting information that sheds light on the causes of the blockchain’s impact on the global and the involvement of more and more investments in digital currencies.

4. “Bitcoin – the people’s money” – Adam Tepper, 2016.

The author of the book is Adam Tepper, a general director of several companies, a successful programmer in the past. In his book he described the importance of bitcoin as a universal financial means. Bitcoin in this book is described as an object of universal attention, as the engine of the financial market. The book pays much attention to investments in crypto assets. The author claims that it is necessary now to invest in digital currencies, since in the near future their price will grow, and all thanks to their introduction into the overall turnover.

5. “Mastering Bitcoin” – Andreas Antonopoulos, 2017.

The author of the book is Andreas Antonopoulos – the founder of bitcoin business in London and the director of several start-ups, a former software engineer. The book describes all the details of digital coins, predicts the development of cryptocurrencies, their introduction into the global financial market and regulation by different countries. The book is divided into 2 parts: the first is aimed at inexperienced people in the crypto world, the second – at investors and people who want to start their business using the cryptocurrency. It should be noted that this book is perfect for students of economic universities that study

digital currencies.

6. “Blockchain: Blueprint for a New Economy” – Melanie Swan, 2017.

The book tells about the nature of blockchain technology. The first part is devoted to beginners and will help them familiarize themselves with the principles of the registry, according to the author this is the main stage before studying bitcoin. The second part is devoted to the indivisibility of the blockchain and bitcoin. The author claims that today’s work of the blockchain will be transformed into something else in the future.


7. “The Internet of money” – Andreas Antonopoulos, 2018.

This book was written by Andreas Antonopoulos after the publication of her previous book “Mastering Bitcoin”. In general, these books are similar in content, but if in the first book the main question was “How?”, then in the second it is “Why?”. The process of the formation of the cryptocurrency as a financial engine and the potential for its development are described in detail. The main idea of the book: “The Internet is not a phone, bitcoin is not money.”

8. “The Age of Cryptocurrency: How Bitcoin and the Blockchain Are Challenging the Global Economic Order” – Paul Vigna, Michael Casey, Mann, Ivanov and Ferber, 2017.

The book is telling about the influence of news and imaginary panics on the course of digital currencies, about their influence upon international economic market. The book also contains research of the blockchain’s importance in modern realities: how it was created, its functions and what to do in order to join the new world of economy.


So, we’ve finished our list of top-10 literature about bitcoin. Having read at least a half of these books, you will come to know all the particulars of cryptocurrencies and blockchain technology. The information, stated in these books, is an invaluable source of knowledge for any beginner in the crypto world, however even an experienced user will find here something new and unusual.

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Microsoft Makes It Possible to Get Ethereum Without Mining 1198

microsoft launches blockchain

As we reported earlier, Microsoft has recently been cooperating with Starbucks to implement cryptocurrency as a means of payment. Meanwhile, this is not the only upgrade of the software giant. Microsoft has also been exploring the possibilities of blockchain and came up with its own version of Ethereum blockchain, known under the name of Azure Blockchain.

The main two protocols that the blockchain will focus on are:

  • PoW (proof-of-work)
  • PoA (proof-of-authority)

They will eliminate the need to mine Ethereum coins.

The official report states that the new Microsoft blockchain will be highly beneficial for multiple businesses and projects in various spheres, from insurance to supply chains:

Rather than spending hours building out and configuring the infrastructure, we have automated these time-consuming pieces to allow you to focus on building out your scenarios and applications.

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Bittrex Adds Two New Coins: XRP and ETC 726

bittrex adds etc and xrp

As we reported earlier today, the crypto exchange Coinbase Pro started supporting Ethereum Classic. However, this coin was also listed on Bittrex together with the Ripple cryptocurrency (XRP).

The users are now able to trade the two new coins in pairs with the USD. The representatives of  Bittrex assure their customers that their future expansion plans include adding new pairs with the US dollar which cannot be found at other exchanges.

We would like to remind you that Bittrex has added the trading option with the USD just recently, which means that the exchange is rapidly developing and might soon make into the list of top-exchanges.  

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