Uservice is a Global Decentralized Blockchain Platform for the Auto Industry 325

Global blockchain ecosystem Uservice token pre-sale had launched. The aim of the project is to unite and optimize all processes related to the purchasing, operation and maintenance of the car. Today there is a huge number of car platforms. Each of them has certain functions – some sell cars, others check if the car was ever in an accident, others offer assistance in repairs, etc. This separation is not convenient for the car owner. We took this into account and created a unique interactive blockchain ecosystem called Uservice. This separation is not convenient for the car owner. We took this into account and create a unique interactive block system for the Uservice ecosystem. Combining a large number of dealers, car service providers, insurance companies, suppliers of spare parts, and many other platforms of the auto industry, we will achieve the most effective interaction of individual links, combining them into one single chain.

Uservice project is a decentralized online platform based on the Ethereum blockchain, in which the smart-contract system will be used. Ethereum technology makes it possible to register any transactions and operations with cars based on a distributed base of contracts such as blockchain, without using traditional legal procedures. All operations with the car will be transparent, controlled and safe.

Connecting to Uservice platform of car owners, car service centers, insurance companies, banks, state regulators and car manufacturers, we will become a collective market of the “full life cycle of the car”.

By introducing an internal UST token into our ecosystem, we create a mechanism of interaction for the ecosystem participants within a single platform. UST tokens are released in a limited quantity and will be a part of all interactions within the project. We expect that the number of participants of our platform will increase, which means that the cost of the UST token will grow.

The project team has such professionals as William Shor, the head of Caspian VC (CVC); Alexander Borodich, CEO, visionary, entrepreneur, Shapeshift, Unocoin and BitAccess investor; Stan Milc, ICObench expert; Greg Limon, ICObench expert;  Kamil Gadjiev, President of Fight Nights, champion of World Cup in Jiu-Jitsu; Manuk Hergnyan, Co-Founder & Managing Partner, venture investment expert; Vitaly Petrov, racing driver, the 1st Russian racer who stood on the podium of Grand Prix of Formula 1; Batu Hasikov, public figure, multiple world champion in kickboxing.

Userv ice platform is an extension of the largest car service aggregator in Europe – UREMONT.COM, where more than 10,000 service stations have already been united into one system.

  • 60,000 completed repairs in 2017 only
  • Website attendance – 1.5 million users (data by
  • An average of 1478 repairs applications dailyThe project has already attracted more than 11 million dollars of investments.To participate in the sale or to learn more about the future platform, you can visit the official website: and in the telegram-chat

The Coin Shark does not endorse and is not responsible for or liable for any content, accuracy, quality, advertising, products or other materials on this page. Readers should do their own research before taking any actions. The Coin Shark is not responsible, directly or indirectly, for any damage or loss caused or alleged to be caused by or in connection with the use of or reliance on any content, goods or services mentioned in the press release.

Football Fans Will Soon Be Able to Buy Tickets for Games Using Blockchain 323

uefa launches a blockchain app

The UEFA wants the fans to have the smoothest experience ever. Right now, buying tickets for football matches is one of the most problematic areas: tickets are often falsified and stolen, moreover they are very hard to get. That’s why the organization is researching new technologies to fix the problem.

UEFA has recently announced about the testing of blockchain for developing a ticketing app. The app works via bluetooth on electronic devices and will be used when entering the stadiums.

The report said: “Fine-tuning and improvements took place at several test events, and the system was first used for 50% of the tickets distributed to the general public for the 2018 UEFA Europa League final between Atlético and Marseille in Lyon.

The Association will keep on developing its blockchain-based app, and, hopefully, football fans will soon have an opportunity to use it.

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Forbes Published 5 Main Blockchain Tendencies for 2018 782

blockchain trends

Blockchain is one of the most rapidly developing technologies of all times. Its main features (speed and transparency) earned recognition and approval from businesses and companies from all over the world.

Forbes has conducted a research and established 5 major paths that the blockchain is likely to follow this year.

1. Companies actively implement blockchain. For example, we have recently reported about the pilot version of election in Ukraine conducted on blockchain.

2. Implementation of this technology follows a thorough research. With blockchain being fairly new, the more conventional fields that are not related to digital technologies or computer sciences treat it very carefully. For example, the Stanford University created a research center for possible introduction of blockchain in the future.

3. The hype is going to fade. Blockchain has been marketed as a panacea for quite a while. Many people were sure it would help to solve major world problems. However, the results coming from this technology, though being mostly beneficial, are not as phenomenal as everyone thought they would be.

4. New and smaller projects are more likely to implement blockchain since they are more adaptable to changes and upgrades. Huge companies like Amazon find it way more difficult.

5. The personal information on people and other important data will be secured a lot better with the help of blockchain. Scammers never rest, however, blockchain will ensure that they have the hardest time ever hacking and stealing.

Thus, we can definitely see a lot of potential for blockchain. More and more companies choose to implement it. Hopefully, this technology will keep flourishing and bring benefits to those using it.

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Playboy Accused a Crypto Firm of Fraudulence 738

playboy is suing a crypto company

Playboy Enterprises submitted a lawsuit to the court of LA against the Canada-based company Global Blockchain Technologies. The plaintiffs claim that the abovementioned enterprise violated the contract concluded between the companies and refused to liquidate the damages ($4 million).

GBT was supposed to assist Playboy with implementing the blockchain technologies through an intermediary service. The firm, however, denies the accusations. According to The Los Angeles Times, GBT’s representative claimed:

Global believes it has a strong defense to the action and will be vigorously defending same.

We would like to remind that Playboy readers might soon get an opportunity to pay for it in cryptocurrency.

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Facebook Is Not Going to Cooperate with Stellar 705

facebook and stellar will not be partners

As we reported earlier, Internet was full of rumours that Facebook was exploring the possibilities of the blockchain technology and wanted to outrun everybody else in this field. The news has neither been officially confirmed or refuted by the representatives of Facebook.

Meanwhile, the Business Insider mentioned in its publication that the blockchain team of this social network was negotiating with a couple of potentially promising projects, one of them was supposedly Stellar.

However, this time the response of Facebook was quite immediate. Its representative said:

We are not engaged in any discussions with Stellar, and we are not considering building on their technology.

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Top Books About Blockchain and Cryptocurrency Which Are Worth Reading 3015

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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How to Cancel A Bitcoin Transaction? What to Do if a Transaction Froze? 975

how to cancel a btc transaction

The user database of the Bitcoin network is growing every year. The novelty of the industry implies the presence on the market of a large number of non-professional investors. They, because of lack of experience or by trivial inattention, can voluntarily lose their digital assets, simply by sending them to the wrong wallet. In this article we’ll talk about why you cannot just cancel a BTC transaction and what to do if it froze.

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

  1. Is it possible to cancel a BTC transaction?
  2. Why is it impossible to return Bitcoins?
  3. The transaction isn’t responding, what should I do?
  4. Conclusion

1. Is it possible to cancel a BTC transaction?

As already mentioned above, unfortunately, it is not possible to cancel the transaction in the Bitcoin network technically and physically. In the history of the coin, many users, on their own bitter experience, were convinced of this feature of digital currencies. At first glance, this may seem to be a developer’s fault, but if you recall the blockchain technology, which underlies cryptocurrencies, then everything falls into place. The fact is that Bitcoin is a decentralized system, that is, it does not have a single center from which it would be possible to correct the direction of transactions. It is worth noting that cryptocurrencies gained their popularity precisely for the opportunity to exchange coins without the control of intermediaries.

You can see the transaction queue, but you cannot return the funds. Transactions in digital currencies are different from traditional electronic systems. The process of conducting transactions consists in rewriting the balances of two wallets (the sender’s and the receiver’s). Data about this operation is written to the registry, after which it is no longer possible to change it.

2. Why is it impossible to return Bitcoins?

Due to the peculiarities of the technology, it is not possible to reverse the transaction. If You, for example, bought something on the Internet and paid bitcoin, but want to make a return of the goods, then You need to contact the seller to make a new transaction to Your wallet. Since the data on Your payment has already been successfully entered in the register and nothing can be done about it.

But what to do if You accidentally sent money to the wrong wallet? Let’s be honest, unfortunately, you have to put up with it, since most likely you will not get it back. Although the Bitcoin address, to which the transaction was made, is in the public register, there is no possibility to find a person by name or surname. Therefore, You cannot 100% know of whom you have sent your digital assets.

3. The transaction isn’t responding, what should I do?

A long time of confirmation of transactions in the Bitcoin network is the weak point of this payment system. The BTC algorithm is designed in such a way that it can handle only 7 operations per second, so sometimes users have to wait for the transaction to complete for several hours or even days. But it happens that they hang for a very long time, for what reasons can this happen?

  • a sudden break in the Internet signal;
  • setting a too small commission fee.

What should you do in this case?

  1. First, you need to make sure whether the operation is actually suspended or whether the queue has just not yet arrived. Open Block Explorer, it will be indicated there.
  2. Next, go to the debugging console (Help-Window-Debug-Console);
  3. Get a private key from your wallet.
  4. Export private access keys to all bitcoin addresses, on which there are funds.
  5. After that, close the application and delete the wallet.
  6. Again run the client of the wallet program, create a new wallet and import private keys. Prepare that this process will take a sufficient amount of time.
  7. Done. In the new wallet, access to blocked funds will be resumed. In this way, you can undo an unconfirmed Bitcoin transaction.

It is important to understand that this instruction does not apply to cloud wallets.

4. Conclusion

Performing transactions on the Bitcoin network one should be extremely careful, since they cannot be reversed. This is both the main feature and the lack of the system.

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