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How To Develop A Blockchain Application

Dmytro Brovkin
How To Develop A Blockchain Application

Bitcoin is the first decentralized currency in the world and it attracts more and more attention over the last couple of years. Bitcoin functions with the help of blockchain technology, which itself bases on the chain of transactions blocks. The information about those transactions updates at all devices in the world simultaneously.

The experts predict blockchain big and bright future — the technology that ensures that the authenticity of transactions can only be confirmed by the parties involved, without any middlemen or regulating parties, can confirm land and diamonds property rights and organize the communication of “smart” electronic devices.

Despite the fact that not long time ago Bitcoin was beating all anti-records and the wide use of it in the worldwide trading is still in the distant future, blockchain is gaining more and more attention from biggest banks, techno-corporations, governments and venture investors. It was in November 2015 that the combined investments in blockchain projects and Bitcoin have passed the 1$ billion mark.

Although in its early days blockchain was only attractive as a base for stable functioning of every cryptocurrency, today’s researches and new technologies tell us a completely different story: this database can be used almost everywhere, there are social networks, helpful projects of all sorts and even bank services functioning with help of block data keeping system.

 It surely isn’t the limit, blockchain’s future looks bright and huge. And that future is something that a lot of people could be afraid of: blockchain can easily replace a lot of bureaucracy system workers, who are only needed to work with databases. At current rate soon comes the day when we won’t even need the people for maintaining the databases and keeping track of statistics — distributed database will be capable of maintaining itself.

So, now we know a little more about what exactly blockchain is. Now let’s get a little bit more information about Bitcoins.

The algorithm’s developer is Satoshi Nakamoto, he has suggested the electronic payment system which bases on mathematical calculations. The point of his idea was to execute the coin exchange without any sort of centralized power, electronically, more or less instantly and with tiniest delays.

What is Bitcoin in a couple of phrases? It’s a tough task, but we tried: Bitcoin is a new generation of decentralized digital currency that only works in Internet. Nobody controls it, emission of the currency is executed through the work of millions of computers all around the world, using the program made for calculating of mathematical algorithms. That’s the point of Bitcoin.

You can also buy anything you want in Internet using Bitcoins just like you would use dollars or euros, and it trades on the stock market just as any other currency does. But the main important difference is that Bitcoin is decentralized, unlike all the other kinds of money. No organization in the whole world controls Bitcoin. Some are confused by this, because this also means that no bank can control your money.

Considering the actuality and popularity Bitcoin and blockchain, a lot of developers are asking how to develop blockchain app. First of all, let’s look at the pros of cryptocurrency wallet apps.

Transactions made easy

You often should go through hell and back to open a bank account for your company in a bank and facilitate transactions – sometimes to just get rejected without any reasoning. It isn’t a problem for Bitcoin, you’ll need 5 minutes of your time to make a Bitcoin wallet, set everything up and start using it. No questions, no additional fees.

In some countries (for example Japan and a couple of places in Europe) you can already buy something using Bitcoin — no matter if it’s a cup of coffee or a house. It’s very comfortable for all parties involved, cause the money are arriving in a matter of seconds with minimal commission charges, and the most important feature is that you don’t need a middleman for your deal: no banks and no brokers are involved, which makes transaction a lot easier.

Bitcoin really is an international currency, it’s the same anywhere you go, and it’s undoubtedly a good thing. For example, you can pay for your goods in Europe, USA or wherever else you want using only one account and not thinking about current exchange rate. Sending Bitcoin abroad is as easy, as getting it to your neighbour. No middleman-banks, who could leave you waiting for up to three working days, no excessive commissions for international transactions, no restrictions of transaction amount.

Absolutely decentralized

This currency isn’t printed and supported by the national banks, so therefore it doesn’t play on their rules. Banks can print as much money as they want to cover the holes in state budget, but it would lead to huge inflation. Bitcoin right now is free of that pressure and immense control that make a life of fiduciary money holders harder and harder.

The states are looking for further restrictions of cash circulation; meanwhile keeping your money in the bank means excessive “transparency” of every single one of your transactions to supervisory authorities, high commission charges and in some cases even restrictions of your capability to cash out on your bank deposit. At the same time, Bitcoin maintaining is free and transactions aren’t restricted by any of state and bank presets. All of that makes Bitcoin so decentralized.

That said, no control and full anonymity of the transactions make it easy target for terrorists, drug dealers and so on. That’s one of the biggest problems in making Bitcoin a legal currency, and as for now, it isn’t sorted out yet.

Unmatched safety level

Another big advantage of Bitcoin is its level of wallets and transactions security that is miles ahead of similar services of other ways to keep and transfer your money. Bitcoin-transactions are secured by the cryptography of the highest level. No one can take the money off you or make transactions from your account. As long as you take all the needed steps to secure your wallet, Bitcoin gives you full control of your money and high level of protection from different ways of scamming.

All the new entries in this base are simultaneously synchronized with all of its copies on all of the users computers. The smart algorithms of finding a consensus are working. To steal something, the thief would need to change the data of at least a half of all users, and that’s practically impossible, given how big the network is.

If you are too worried about hackers getting your data that’s been stored online, you can use another way called “cold keeping”. Bitcoin-wallets of this type are storing closed keys offline, so it’s impossible to steal them through Internet.

It’s probably the best to keep the most part of your Bitcoin budget “cold” and just transfer the needed amount to the separate address, which does have the Internet connection. So, even if you lose your phone or wipe that address off your PC, you only can lose a tiny amount of coins.

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Dmytro Brovkin
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