Blockchain – in simple words. What is Bitcoin and Blockchain? What is Blockchain Technology?

Nowadays, many of us are increasingly familiar with such concepts as blockchain. What kind of system is that? Unfortunately, you don’t know everything about it, but you can still get promising chances for development and advancement in everyday life. Let’s try to describe what blockchain is in simple words. In addition, several applications of modern new technologies will be introduced, as well as the advantages and disadvantages of the global information structure will be examined.

Blockchain: what is it?

The vinyl system itself has recently been released. Although we do not yet delve into the main technical aspects of its operation, blockchain technology has a clearly structured database with basic rules for prompt transactions and access to information, which includes data theft, check paradise, destruction of Maynov's rights.

On the other hand, during the hour of work, only two parties are involved in it, without hiring intermediaries to please any type. When we talk about blockchain, in simple words, the technology can be compared to a transparent safe, let’s say, to an impenetrable vault, into which the client (correspondent) can place the registration data. When it comes to this, it’s time to go there and put it there yourself. And getting it out of the safe is only possible due to the obvious access rights, apparently, of a key that is only known to the one for whom it is intended. As you understand, it is impossible to break the safe with gold. But it really is necessary to achieve a primitive leveling.

In the singing sense, the blockchain system can be presented in the form of a global ledger, which mathematically describes the basic rules for saving and sharing information, including access to it via calls on the level of registered accounts. Entities or administrators. It doesn’t matter if you guess that this system doesn’t have anything special like that.

How does blockchain work?

The basic principle of the functioning of the new technology is the clarity of the operations that operate, since they cannot be changed by persons who do not have authorized access to it. The founder is the Bitcoin system, which was created as a self-regulating cryptocurrency that does not require servicing by financial institutions or banks. Vaughn used the blockchain platform to facilitate transactions of any type. Any blockchain hacker, for example, the Qiwi system itself, operates in a similar manner.

The main aspects of the functioning of the global database can be understood using the DNA structure. It has a powerful chain of transaction blocks (payments, payments, etc.). In this case, after the completion and confirmation of any transaction (based on the established mathematical rules), a new block is added to the lanyard. And such a block, like the DNA of cells, contains information about the whole measure. Thus, blockchain technology initially means that it is impossible to add a fake block or obtain a new one, since it will be immediately visible to the entire system. Roughly speaking, it is not possible to add to the structure those that are not to blame. When a block is deleted, the system itself reacts to a change in the global structure. It turns out that cheating, unauthorized distribution or piracy is completely disabled.

Main areas of stagnation

At the stage of its emergence, blockchain technology (from the English block chain) was developed exclusively for cryptocurrency, and a little later it was used by various banking structures.

However, today, in its development, a new system penetrates deeply into our everyday life. Platforms for developing business add-ons based on blockchain technology can control copyright infringement and speed up the process of developing one or another product according to the stated standards, without mentioning all financial operations tsії.

Main platforms for generating business benefits

Among the most current and frequently used platforms on the basis of which software products for business can be created are the following:

• EmcSSH.
• EmcSSL.
• Emc InfoCard.
• EmcTTS.
• Emc DPO.
• Emc Atom.
• EMC DNS.

Let's take a look at the skin.

EmcSSH

From the point of view of the EmcSSH platform, which is an additional extension of the SSH technology for the administration of networks, the blockchain is a specialized collection of public keys (passwords) and lists of clients, which provide the right to authorized access.

For example, the fence allows access to many cars. To prevent password theft, a secret key file is stored in the blockchain, which prevents attacks by hackers known as MIM (“man in the middle”). If it is impossible - the file has been stolen, then the correspondent can instantly remember it for a new one or block access.

This technique is most effective in situations where it is necessary to manage a large number of servers, a network of ATMs, remote computer terminals, etc. at the primary local boundary.

EmcSSL

This platform is an extension of the SSL protocol. Blockchain is a place for saving digital certificates of various companies and organizations.

When entering, for example, a bank’s website, and the exchange of information between the client and the online banking system, the client’s authorization is based on such certificates, which makes it impossible to steal passwords, in or keys by third persons. If the client loses the certificate, the procedure for renewing it will take a lot of time, although there are some inconveniences in terms of restrictions that overlap (the renewal service is paid, and the process itself needs to take more than an hour).

Emc InfoCard

It is based on a system of electronic business cards, inextricably linked with SSL certificates of the supplier. In addition to the rest, such business cards are manual so that the information that is included can be changed.

When you enter an Internet resource that supports this technology (for example, blockchain), authorization is obtained on the basis of a virtual business card, and the information from it is automatically acquired. The strength of such a system lies in the fact that when you change the data on a business card, it is changed on all resources where it is registered, instantly and completely automatically. So the customer has no need to re-fill the registration fields on a large number of sites manually.

EmcTTS

The TTS system is a means of recording documents that are posted, of any type, within an hour of creation to indicate the moment of their publication.

This technology is indispensable in legal matters when it is necessary to verify the validity of a document, contract, patent or publication of copyrights. By checking the hour, you can simply check the date of publication and publication, and the hour, down to the second. And in jurisprudence you can play a key role.

For example, there are two companies that have entered into an agreement for the provision of certain services. After signing the contract, the first company began publishing using TTS technology. The other company did not know about this, and then began to make changes to the contract on its own, citing the fact that the official copy was wasted, and also declaring that certain points were spelled out in the new edition it had approved. There is nothing simpler than to prove that the first company is right in time for publication.

Emc DPO

The DPO system is another core technology that is used to prove rights, whether physically or intellectually.

Simply put, on the basis of unique numbers or characteristics of such technology, you can confirm, for example, the right to own a car, a cabin or an apartment, a plot of land, software development, etc. PZ licenses, and in some cases, let’s say, for the inviolability - the place of retouching is the same. bud. With such a system, the re-registration of power rights becomes even simpler. It is enough to perform the simplest operation of changing data in the blockchain. As you understand, access to such processes can be denied to the individual whose right is denied, and the issued calls are turned off.

Emc Atom

Atom is a system designed to arrange data between two parties without the participation of third parties or intermediaries.

To be clear, in certain situations when transferring power rights or established contracts, the two parties are tempted to contact a notary, legal office, bank and other organizations. In this situation, their fate is not needed. Registration has been completed when the seller has withdrawn the money, and the right of ownership has been re-registered to the buyer, which confirms the legality of the transaction with the subsequent verification of the right of ownership by the seller, and then further confirmation Jenny the rights of the power of the new ruler. True, such an approach can only be advocated if both parties trust each other unapologetically.

Emc DNS

Found, another platform that provides an alternative system for distributing domain names at the edges, overcomes criminals to thwart attacks on the DNS.

It is important to note that due to the stagnation of such technology, any distributed network connected to the Internet becomes practically non-disruptive.

Swiss transactions

This type of technology is used for making micropayments with minimal costs and expenses. Such breakdowns can lead to a small amount of money (lead to pieces of copies).

Since all transactions that are carried out are virtual, the system allows you to capture all exchanges by speed code in the so-called TPS metric, regardless of whether any transaction may be expressed in penny equivalent і, or in living on its economic resources.

Advantages and shortcomings of the system

It goes without saying that the blockchain system has clear advantages. The most important thing about technology is its unprecedented reliability and, as is confirmed, absolute safety. Today, there are active debates about the feasibility of widespread implementation of such technology. Bankers, before speaking, are not in a hurry to navigate through the low speed of the robot, so as to lie in the traffic for the first time, wanting to know that the speed of the speed has a lower priority, equalized with reliability and protected This is the operation that is being carried out.

In fact, anyone who is familiar with the latest blockchain technology can independently verify the quality of the product, which is purchased by the way of unwinding all the selection and supply, in order to ensure that the purchase effectively demonstrates the value according to the standards.

Meanwhile, they are talking about the global advancement of this technology, which has appeared, in the opinion of rich fakists, almost entirely due to the guilt of the global Internet network. The additions created on this basis, not even though they are about the organizations that support them, are not yet as rich as we would like them to be. However, most experts agree that blockchain is on the horizon. So no matter what, the time will tell. It’s hard to believe that this system is not hidden by the share of the Bitcoin cryptocurrency, which has recently become popular.

In the opinion of the average citizen, the word “blockchain” (“blockchain of blocks”) has become closely associated with the term “bitcoin,” which has a dual meaning in the context.

On the one hand, the popularity of Bitcoin generates interest in the blockchain, on the other hand, in the mass media, Bitcoin is often associated with much more negative, defended and re-investigated by legislators. Having said that, should we finally pay with bitcoins if we have a whole zoo of electronic cards and bank cards? Yasna rіch - to turn all the darkness around.

Blockchain is essentially a tool that allows you to save transaction data (database). And the tool itself cannot be obviously good or bad: with the help of juice you can drink and chop firewood to warm up the winter and cook urchin, and you can take the same juice and cut down the population of the towns in the surrounding area isti. The tool is the same, the hardening and the inheritance are different.

The spheres of consolidation can be identified without any personalities, without meaning - to create an analogue of agreement and similar mutual relations, partnerships between the parties. Because Bitcoin and Litecoin are now using blockchain technology, banks are already actively interested in blockchain (in the spring of 2016, Bank of America and Microsoft announced the beginnings of developing a financial blockchain platform).

First, a real benefit with real pennies has already emerged in the fall of the same fate - an Israeli startup (Wave), a British bank (Barclays) and an Irish dairy manufacturer (Ornua) issued a letter of credit for 100,000 dollars. And since the process previously took more than a decade through bureaucracy and verification of all documents, then again cryptography and automated verification, everything took almost four years.

On January 21, 2016, a letter of credit was issued through the blockchain by Alfa-Bank and S7.

The Central Bank of the Russian Federation together with the great banks of the region created the “Masterchain” platform, meta - to promote the insight and efficiency of existing financial systems.

And the EU Parliament is, in principle, thinking about the implementation of an additional blockchain to the authorities of the state.

Considering the scale of the stagnation and the rush of citizens who have already begun to exploit technology from the government, it is no longer possible to introduce blockchain to such strange and suspicious innovations, which will all be forgotten in just an hour.

How safe is everything?

The main advantages of the blockchain are visibility into the transactions that are being carried out, and multiple copies of all these transactions in such a way that every participant in the process always has information about the skin of all partners.

If you try to describe it in a simpler way, you will see a large folder on FTP. If you put all of them together (no added files), you may be amazed at who has downloaded files in which subfolders. Like the files themselves and for whom.

In this case, everyone has different access to these files. If you can, you can no longer enjoy the views and look at the list of files in each folder. And whoever (the addressee of a specific file) can capture your own data. Moreover, no one else can be denied access to the file - except the one to whom it belongs.

Or, for example, a great electronic gaman with hidden statistics. You see that 50,000 rubles were received for the exchange from Koristuvach A for Koristuvach B. Koristuvach B will transfer them back to the system in a year. In this case, the players themselves, who compete for A and B, can be either anonymous or completely identified - lie on the very platform and mark of the building. All members of Lanzüg can watch out for the transfer of funds, otherwise access to the properties themselves will be denied to a member with the necessary rights (B). Other times, the role of sponsors emerges.

This will ensure the proper level of transparency of the site - the entire transaction is duplicated and stored in the permanent encrypted view of each participant, without any detail.

Blockchain decentralization does not have any single “command center” that can collect all data about the interests of its participants or change them.

For example, if a transaction was carried out in which 100 people took part, then this blockchain platform will no longer be operational and available for review because 99 computers of other participants will be zipped. And, in fact, the skin of the Lanzug blockchain is a kind of new backup of data from all transactions carried out by participants on the blockchain.

The hacking of one of these computers will not affect the saved data on others (or on their replacement).

Blockchain now and in the future

It is entirely possible that this is the very hour when the technology is being tested in large significant areas of everyday life, and we will certainly see more and more projects and platforms that are developing blockchain. Just as banks are trying to actively promote this in themselves (including to reduce operating costs), new innovations are entering the market to popularize innovative technologies.

New projects on the blockchain will be based on its main advantages - confidentiality, security, safety.

Therefore, the blockchain will become a great help for any services where investors could worry about possible fraud or saving their data:

• micropayments
• banking transactions
• logistics
• jurisprudence
• medicine

Over the years, blockchain has evolved from technological innovations to a tool that large banks, corporations, and governments are beginning to use.

What is even more valuable is the fact that future technology reveals its potential even more powerfully.

Little things about us

We take part in the development of the blockchain since 2011 (the birth of BitFury) and will be happy to share with you the remaining progress and new products.

The first experiments with the use of central and graphical processors for mining began 6 years ago in 2011, in the framework of various projects. Through the river, it was decided to concentrate Zusilla on one – BitFury. In 2014, mining was already started in 3 countries (Finland, Iceland, Georgia) on a power supply. It is planned to build a data center in the United States.

A few dozen projects that we have already started working on:

chip behind 28nm technology

We have arrived to replace our specialized 55nm chip. The new chip was produced at a rate of 0.2 Joules per gigahash.

16nm chip

We have begun to introduce it to our data centers. This chip, having already consumed 0.06 Joules per gigahash, productivity became 184 gigahashes per second (mercian cooling) and 140 - with wind.

Blockchain opens up great opportunities for government agencies - in the spring of 2016, we began work on a blockchain-based land cadastre project for Georgia. In addition, the use of blockchain will increase the level of security and even speed up the process of remote registration of documents, which can also reduce the cost of registering land rights, and it will reach the average - from 50-200 $ to 5-1 0 cents.

During 2014 and 2015, we were able to receive investments in three rounds of 20 million dollars each, which at that time was approximately half of all world investments in Bitcoin developments.

Today, BitFury is one of the largest miners and creators of the blockchain platform. We intend to preserve leadership positions and actively promote blockchain technologies.

If you have any specific information about blockchain in general or any of our products (BlockBox, 16nm ASIC chip, blockchain and power) - write in the comments, we will probably be in the upcoming posts.

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Comments 48

What is blockchain and how great is its potential? A lot of people can’t be sure of the first part of this diet, not even knowing what types of systems exist, and what kind of ambushes blockchain technologies are based on. Blockchain can be used in the cryptocurrency sector. In what areas is blockchain being explored? What are the pros and cons of it? What does sense technology have to do with blockchain? What kind of ambushes does he work on? Let's talk about everything right now.

Today, the term blockchain is used at least as much as the term cryptocurrency. But even more often they can be done almost at once. And many people who are not far from the cryptocurrency market can confirm that blockchain and cryptocurrency have an even closer relationship. Any digital currency cannot be created without blockchain technology. Just as blockchain is possible, the plan to build without cryptocurrency is entirely realistic. Even if we forget about the development of blockchain technology, cryptocurrency cannot at all claim to be the phenomenon that it is today. And so, let's move on to the blockchain report.

Principle of robot technology

Blockchain is an information base in which data is stored in the form of a permanent chain of blocks, in which all data is encrypted using additional cryptographic methods. I, regardless of those that a similar method of saving data was tested in the nineties of the last century, for various reasons all these tests were doomed to failure.

The first who managed to successfully create and implement the technology became Satoshi Nakamoto. It became the same in 2008. Satoshi herself is the author of the article Bitcoin: A peer-to-peer Electronic cash System, which describes the essence of the decentralized digital currency Bitcoin. The Bitcoin system is based on blockchain technologies. But then it became clear that she would not be united in her family. So, not a lot of time passed, and dozens and hundreds of other cryptocurrencies began to appear, which were essentially based on the principles of Bitcoin. However, these digital coins have become the first cryptocurrency in the world. Either way, blockchain is invariably at their core.

What is the principle behind blockchain technology? On the right, the information that is saved is distributed to the skin cortex, which is called decentralized. Another peculiarity lies in the fact that the skin of the forward block is bound to the front block. Obviously, this particularity is obvious, making adjustments to already existing data becomes impossible, and even in order to change one block, it is necessary to change all the steps.

1. Block title. This “body” includes data such as the hour and date the block was formed, the hash of the current and previous blocks of the data, as well as other necessary information, also called service
2. Information about new transactions, which were created during the period before the new block was created

And here we come up with a new concept of “hash”. A hash is a single value that is obtained as a result of processing the input information using a universal algorithm. In any arrangement, the hash consists of a certain number of symbols, in which case it is enough to trim just one character from the input data in order for the entire hash to be trimmed.

Let's say that we have a prime number at the input and a mix of all numbers, starting with 0 and ending with 1000, so we take two sets of symbols at the output. Ale scho will be, yakshcho mi vipadkovo we will forget to say 0? As a result, we have an absolutely unique hash, which has nothing in common with the previous hash. Transactions are the total result of all hashes included in the block. With respect to the written word, you can make notes about those that:

1. First you need to calculate the hash of the skin that is included before the block
2. Then the fields are divided into bets, the hashes are determined by the way of adding the number to the guy. In that case, if the number of items is unpaired, a duplicate will be added to it. So, anyway, the skin transaction meets its partner.
3. Those hashes that were stolen as a result of past actions are again divided into bets, after which they are formed again
4. This process can continue for a long time, until you lose one single hash that will be included in the block

The storage of this hash itself is the basis for the process of monitoring transactions at the edge.

It is important to understand that those on the Bitcoin blockchain are not satisfied with just moving a large number of coins from one value to another. The process itself is complicated.

Specificity of the transaction

Find out that there is a bunch of bitcoins on your website. It is permissible, їх 6. You only calculate this number, prote for the system itself, it is the sum of all the coins that are included in the game, so that 2 coins are taken from Olenya, 4 coins are taken from Andriy. If you transfer 5 btc to Valery, the transaction will have an entry: we take 4 bitcoins from Andriy, two bitcoins from Olenya, transfer 5 bitcoins to Valery, 1 Bitcoin is transferred to the sender. With such particularity, we can understand the path that the same coin took, first of all, it will be found in the hamman of the end of the coin.

Mining and blockchain technology

The word mining is familiar to everyone, but not everyone knows everything. It lies near the newly created boundary blocks. When will mining stop working? The answer is as simple as most. There are already a lot of miners generating new and new blocks every day. We remember that the network is decentralized, and therefore miners will not have an advantage when searching for new blocks. In order to achieve a consensus of permissions, a proposal was put forward to create a Proof-of-Work consensus algorithm.

The new block is added to the number of units that were able to vacate the workplace of Sweden and others. In this case, other nodes can verify the correctness of the title. Finally, the task was formulated to select a single number that could be added to the existing block so that there would be a new hash, which would have a large number of zeros. Vikonati such a task is not at all easy, and for this it is necessary to demonstrate the slightest amount of effort. And it’s easy to verify the correctness of the assigned task. Those, as complex as the task will be, are completely lying under the extreme pressure that is the water of the boundary. The Bitcoin protocol already has a verification of complexity, which is programmed into it. This will take place after the last 2016 blocks have been found, each two layers deep.

In order for the miners to monitor the search for blocks and maintain these very limits, a wine was established for the city for searching for blocks. Vuzol, who found a solution to the problem and helped create a new block, taking away 50 bitcoins. This happened earlier, even if the author transferred the option of halving the city through every 210,000 blocks, so today the city accumulates 12.5 bitcoins per block. Moreover, miners will take away additional cash for those who included the transaction in the block. The skins from the miners wanted to eliminate the largest profits, so they focused on adding maximum commissions to the block.

So, the search for new blocks seems even more complicated. However, situations arise when two blocks at the same time could solve the problem almost simultaneously, and then a lanyard appears. A dozen nodes choose the first node, and then another. Then we can eliminate the situation if there are two parallel lanyards with valid blocks. Meanwhile, over time, one of the lances becomes long, and the other becomes shorter, after which the other one falls out. Most often it appears on the fifth block after division. Why, in order for the benefit to be fully respected, it is necessary that 6 blocks be found at a time, then the money will be transferred from one gamut to another, and changes will be made on the balance of the gamans.

However, mining will not always bring the participants some profits. In order to effectively mine bitcoins, it is necessary to acquire special equipment and set it up correctly. That’s why all the risks associated with mining are taken into account.

Type of systems

The classification of the blockchain for the first types is of a more formal nature, and even the most important factors here are outlined in the options for accessing information to the registry by these and other stakeholders, so we divide the blockchain into the following category:

• Divisions of the public open register. The site is not controlled, in which case all the relevant employees share the same fate, and every participant can review all the information that is stored there.
• Public and closed divisions of the registry. Here the actions are confirmed and supported by the hemstone nodes, which are necessary for this purpose.
• Divisions of private closed registry. Any process is under the close control of one centralized body

In order to bring any blockchain up to standard, you need to do a lot of simple things. For whom it is important to understand which traders have the right to review transactions, who can create new records, and who is responsible for ensuring the efficiency of all measures.

Blockchain butt

Until now, we viewed the blockchain as a base for the information that is stored there. However, not all investors know that the blockchain can also be used for different programs. You don’t need to go far to find butts – reasonable contracts are the basis of the Ethereum blockchain. How do smart contracts work, what is their essence? Let's take a look at a specific butt:

You have a luxury car, and you plan to rent it so that the vehicle does not sit idle. For the price you want to deduct 1000 dollars per month, and deduct half from the appearance of an overpayment. Without smart contracts, the further development of the situation looks like this:

You go to a lawyer in order to draw up a lease agreement, you know a person who wants to rent your vehicle, and also gets a new agreement, which will indicate that he has 3000 dollars for the account, as insurance in that yakscho You should buy a Skoda car.

The renter transfers the advance payment to your account, and you give the car to you. However, a month is passing, and we will be able to return your transport costs to you. You also won’t be able to withdraw the rental money, but you will also find out that the car was lost in an accident and is now seriously damaged. To determine this, you contact a lawyer and file an application before the court.

In this way, we have to go through a great number of intermediaries, among them a lawyer, a lawyer, banks and so on. Smart contracts allow you to change food without their participation. For this you just need to create a special program and enter the following data into it:

1. The order overinsurances to the Gamanets Vlasnik transport department of 500 dollars
2. The transport fee is transferred to the lessee. If someone doesn’t get it, the pennies go back to the bottom
3. A month passes, and another 500 dollars are automatically debited from the owner's account to the transport department.
4. If the lease is issued to the transport department, the insurance amount in the amount of 3000 dollars will be written off from it.

The axis is also a smart contract. Now you will no longer have to add anything to the blockchain, after which you will have to wait until you lose your mind. As soon as the contract ends, it will be automatically terminated, and the result will depend on the outcome of the contract itself. A natural and logical diet is also to blame: how can you ensure that the lane has been spoiled by harm, even if the program does not improve anyone? In order to complete the process, the ethereum platform has added dapps, which include drives and sensors to ensure the exchange of data between the platform and the blockchain.

Spheri wikiristannya blockchain

Having analyzed all the information available, let’s review those areas of the underlying technology that underlie the blockchain. Currently it is involved in the following areas:

1. Authorship protector. Thanks to the special startup Monegraph or Ascribe, authors can quickly and easily secure the right to unique content by setting a special fee and sequence of payments for the product of their intellectual property.
2. Transportation. The La Zooz service gives you the opportunity to provide transportation services directly to clients, or, in fact, find someone who can deliver your goods to any destination.
3. Confidence of the individual. UniquelD Wallet and Civic are a axis of several services, in which you can create electronic documents using a blockchain, protected from the confidentiality of the data. We are already aware that such documents can change the traditional identity of individuals
4. A large base of information, access to some anonymous participants, skins with potential protection. At this time, blockchain technologies are being exploited in order to steal data bases from possible fraudulent activities. The use of such bases can be the land cadastre or charitable fund.
5. Light of gambling. The online bookmaker Augur encourages its clients to place bets on sports and have peace of mind that they will pay out the winnings every time.

Most of the areas in which blockchain technologies are actively being explored. And if you think about it, today we can find very few spheres of activity in which we would not be forced to serve as intermediaries. All these services are not costless, and even then they lead to great expense. Due to smart contracts and blockchain technology, we are eliminating the possibility of using intermediaries, and therefore wasting money and energy. Prote blockchain has both its advantages and its disadvantages. Due to these disadvantages, the blockchain itself cannot be considered a part of our everyday life, having created something simpler and more convenient.

Advantages and disadvantages

We can go over the obvious advantages of blockchain technology:

1. Decentralization. A skin doctor has absolutely identical rights, and has no common advantages over other skin therapists. They can join hands with each other without a middleman, without resorting to the services of intermediaries.
2. Reliability. It is very important to preserve any part of the information that is stored in the blockchain. For whom will there be a need for intense calculating efforts? An even greater level of security is guaranteed by encryption methods. All the same, no matter how they try to cheat without being foolish, the evildoers themselves take away significantly less than the resources that they have to spend in order to achieve their goal.
3. Vinyatkov's insight. Any client can have access to information that is stored in the blockchain
4. The transmission speed is at a high level. For the sake of stastouvannya the capabilities of blockchain technology, it will work in seconds, with which no additional additional commissions and cash flows will be required. It is especially worthwhile to compare with the classical methods of creating transfers
5. Versatility. This technology is so promising that every day a new area of ​​development is being developed, in which most structures and corporations, including states, will participate in the development of blockchain technologies.

However, there are no downsides to this technology.

1. The need to obtain a large amount of free disk space. Only the Bitcoin blockchain needs 100 gigabytes, with which transactions are gradually added, which further improves the ability to have more space on the hard drive.
2. The legal status of the blockchain is unknown. Both cryptocurrency and blockchain are officially recognized only in other countries. Others have taken a vicarious position and are guarding the development of blockchain technologies, not rushing to give official permission to their development.
3. Irrelevance. How can you steal the money of a wealthy person, or else you will kindly transfer your money to another wealthy person, and you will no longer be able to turn them around?
4. Scalability. The more traders there are, the greater the delay in the transaction and the higher the commission. This problem has confronted a lot of developers, but to their credit, it means that they should not sit with their hands clasped, but steadily promote new technologies, which will give them a minus.

Visnovok

In this article, we looked at the principle of operation of blockchain technology, the features of benefits, the mining process, the main types of systems, and on a specific application we analyzed the application of blockchain technology. We were also able to see the advantages and disadvantages of blockchain technology. It is important to understand that the development of blockchain technology will allow for a major breakthrough in many areas, but at the same time it also has its disadvantages. There are many opponents of this technology due to the fact that, like Bitcoin, it is no more than a simple “bulb”, and this money may disappear in the near future. However, most experts agree in the Duma that these technologies will seriously change our world, and in a better way. We are deprived of only one thing - to watch out for those that will happen in reality.

Of course, you have already heard the term “blockchain”, but perhaps you haven’t been treated to any particular respect, respectfully frivolous fashionable buzzword or technical jargon. It is important to note that blockchain technology does not have large-scale successes that will affect not only the sphere of finance, but also many other areas. This statistic lets us know what a blockchain is, in simple words.

Blockchain (block chain) is a distributed database in which the data storage device is not connected to a back-up server. This database stores a list of ordered records, called blocks. Place the leather block with the hour mark and place it on the front block.

The encryption guarantees that users can change those parts of the block blocks that affect the sense that they have private keys, without any entries the file is impossible. In addition, encryption ensures synchronization of copies of a distributed block of blocks across all accounts.

Reveal a digital history of illness: a skin record and such a block. This entry is marked with the date and hour of entry. From now on, it is important to obligatorily change records retroactively, so that records about diagnostics, treatment, etc. are required. They did not allow any shadows and were deprived of their appearance. Only a doctor who has one private key and a patient who has another can revoke access to records. Then, access to this information is denied only to those to whom one of these users has given their private key (for example, a doctor’s note or other facsimile). So, for example, you can use blockchain technology in a medical database.

Blockchain technology is based from the start on the security of the data base. The concept of lanyard blocks was introduced in 2008. It was first implemented in 2009 as a component of digital currency - Bitcoin, where the blockchain plays the role of the main ledger for all transactions. Since Bitcoin's blockchain technology has become the first digital currency, there is a growing problem of double spending (in addition to physical coins or tokens, electronic files can be duplicated and double spent) without having to report to an authoritative body. more than a central server.

The security of blockchain technology is ensured through a decentralized time-stamping server and peer-to-peer connections. As a result, a database is formed that is managed autonomously, without a center. It is useful to use the lanyards of the blocks even manually for registering procedures (for example, making medical records) and data operations, managing identification and confirming the serviceability of the device.

Visual representation of a decentralized Bitcoin server

How does blockchain technology work?

Some people call blockchain technology the “Internet of Values,” and we appreciate that this is a good metaphor.

Every person can post information on the Internet, and then other people can deny access to it from anywhere in the world. The blocks of blocks can be sent to any point in the world, wherever the blockchain file is available, whatever the value. Or you may have a private key created behind a cryptographic algorithm to allow you access only to the blocks you control.

By giving someone your private key, you are essentially transferring that person a small sum of money, which is kept in the private section of the locker blocks.

In case of Bitcoins, such keys are used to access the address, behind which certain sums are saved in the currency, which becomes a direct financial value. This implements the function of registering the transfer of funds - assign this role to the banking of banks.

In addition, another important function is implemented: the installation of the locks ensures and confirms the functionality of the feature, so that no one can change the block lanyard without the corresponding keys. Changes that are not confirmed by these keys will be rejected. Of course, the keys (as physical currency) could theoretically be stolen, but the recovery of several rows of computer code would not require large expenditures. (Consider, for example, the expense spent on preserving the gold reserves in the miserable Fort Knoxie).

This means that the main functions that are carried out by banks (verification of the validity of the particularity to prevent swindling and further registration of assets, after which they become legal) can be completed by the strap of blocks more precisely she.

Why is blockchain technology important?

Today we have decided to share information through a decentralized interactive platform on the Internet. If we are talking about the transfer of valuables (pennies), we are in danger of once again profiting from the services of the old centralized financial institutions (banks). Thus, payment methods via the Internet appeared practically at the time of the rise in the value of money (the most obvious example is PayPal), but they require integration with the banking system or a credit card, otherwise they cannot be fully koristovuvati.

Blockchain technology promotes the possibility of achieving this “winner’s goal”. There are three important roles that you can play in the financial services sector: registering assets, confirming the correctness of your identity, and arranging contracts.

Of great importance, the fragments of the financial services market in this world are the largest behind market capitalization. I would like to transfer parts of the entire system to blockchain technology, which would lead to the severance of a large number of connections in the sphere of financial services, but would also significantly improve the efficiency of such services.

The third possible role of this technology (contract placement) may appear even in the financial sector. In addition to the introduction of just one currency (bitcoin), blockchain technology can be used to store any type of digital information, including computer code.

This piece of code can be programmed so that it is signed only if both parties enter their keys, thereby allowing the contract to be established. This code can extract information from external data streams (stock prices, weather reports, news headlines and everything else that can be analyzed by a computer) and create contracts that will automatically register under the hour of singing minds.

This mechanism is called “reasonable contracts” (smart contracts) and the possibilities of its implementation are practically endless.

For example, an intelligent thermoregulation system can transmit energy saving data to an intelligent electrical circuit. When the amount of electricity decreases, another block of blocks automatically transfers the required amount from your account to the account of the energy company. As a result, the doctor’s robot and the process of placing racks are automated.

With our medical records application, a doctor or patient can transfer their private key to a medical device, such as a blood tumor monitor. This device can automatically, in a timely manner, reliably register the level of protein in the patient’s blood, and then, for example, exchange data with the device for injecting insulin, which is on the stand These data will automatically support the normal flow of sugar.

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Hello, fellow readers of the blog site. What is blockchain? The rich (and in me the kidney) immediately feel guilty bitcoin association(or cryptocurrencies are indispensable). On one side, these associations are true, and on the other, they are not. Why so? Let's get along.

In part, this is obtained through the most popular payment service in the world in order to save bitcoins for tens of millions of customers, only this makes a significant difference in the number of connections.

Let’s first go through the etymology of this word. Created according to the English BlockChain, which in translation means “block chain”. Ale tse is not much about us, it’s just the name of technology. However, we vikorized those key words in order to explain everything.

What is BlockChain and what is the essence of this technology?

But virtual money is just one of the many options available, although it successfully demonstrates the capabilities of this technology (there have not yet been any episodes of evil or theft of bitcoins). Indeed, such an infallible reputation of the blockchain prophesies in the future in other areas of human life, as critical in food safety as a penny (saving information, making insightful choices and that too).

Chantly, you’ve already got a mess in your head - how can you connect electronic pennies and choices? Well, here everything can be easily explained. Blockchain power is simply divided and the good is protected from the evil database. The whole point is that everything on the right is organized.

It’s true, if we go into detail, it’s tedious, but I’ll try to convey the essence in simple words and understandable terms. Whose help I have before speaking is the girl from the video above, which clearly illustrates the process Blockchain wiki for cryptocurrency creation and not only:

Are you familiar, by the way, with such technology as BitTorrent (I wish it was by the way)? Why is it notable (besides the fact that most exchanges are carried out on these principles, including violation of copyright)? And the fact that the data is saved in it is distributed - there is no central server, but from which everything works miraculously (swiftly and reliably).

Blockchain advantages

So the axis, block chain is similar to it (in its divided structure and popularity), but it has generally low other advantages:

1. There is also no central server - the entire database is distributed among the participants, which means it is practically impossible to repair it (other copies can be easily inserted into unauthorized changes made in one or a number of copies - it will take more than half of them to repair of all cost systems).
2. Every user will have a permanent copy of the database (to cover the entire transaction) in an encrypted view. Copies are synchronized (this algorithm makes a decision regarding conflicting versions of the blockchain).
3. If anyone wants to be able to complete any transaction (operation with data) - the system is completely transparent (and do you think that the SMI intelligence agents knew the exact amounts of bitcoins, reinsurance to the virus owners, which recently no?). One thing is for sure!

Information on the basis of blockchain technology is available New blocks in sight. The addition can be used with other border systems. As for Bitcoin, there is a new way of resource-intensive mining (essentially enumerating numbers and sorting a hash for them with the method of fitting into the backlog of tasks in the template).

So, I will create a new unit of Bitcoin (essentially, a new block of information) verified by other system participants(restore the hash) and only after this a new block is added to all databases of all customer systems.

4. All illegitimate attempts to make changes to a database based on blockchain technology (add new blocks, assign them to oneself, etc.) are dealt with by aligning with copies of the databases that are stored in other corporate systems. It’s easy to break the system through decentralization and extensive copying of information that is saved. This is similar to the DNA in human cells - they are rich, they carry a wealth of information and can easily cope with errors in multiple copies.

Analogies and butts of Block Chain for creating cryptocurrency

However, the above descriptions did not bring clarity to your mind about what BlockChain is, then I’ll try to explain with simple associations.

Discover this terrible phenomenon, which is available to everyone in public without any analysis (or its old analogue is an FTP server with files in secret access), where there are thousands of folders with files. On this page you can look at everything that is currently uploaded there and know where the file is, who has uploaded it and who has downloaded it. Ale... You yourself cannot conquer everything yourself, and especially those who have the right to do so. So it will be possible to upload files as soon as you have completed your mental system.

Junior butt from galusi pennies, which will be closer to bitcoin. Realize that in the system of electronic pennies there are no individual gamblers (data that is available only to the governor of the hamman and to the workers of the system), and there is only one gambler, in addition to statistics that are completely transparent to everyone. You can tell that Vasya transferred so many pennies to Petya, and he gave him so many pennies. But you won’t be able to sneak into the exchange process.

You will be able to take back the money that is due to you. They are linked to special addresses, between which a transaction (transfer) is carried out. The transfer is confirmed by a secret key (signed by it) with a valuable address (in essence, it is analogous to a login and password). Information about those who transferred money is posted in all copies of the database. Pennies are counted as transfers if there are records of their transfer and receipt.

A detailed description of this article will follow, but in the meantime, I’ll give the floor to a young man who recognizes in simple words about the foldable blockchain and implementation on the basis of cryptocurrency.

It looks really easy, isn’t it?

BlockChain – what is our future?

The technology under the name blockchain is now undergoing successful testing as a tool for virtual money, such as Bitcoin and other cryptocurrencies. Thankfully, this is where the triumphal progress began, but it is unlikely to end.

Blockchain is not the same as Bitcoin

According to the idea, cryptocurrency is not worth pennies, but a new analogue of gold in the virtual world - its quantity is exchanged (insuranced many times in advance and the quantity of “produced” is regulated for the sake of increased complexity of the process ku), but you can remove them (for example, in) Either way, there is a video boot (in a mine that your computer can use or a specially selected system).

But by itself, Bitcoin will reach its peak. Having emerged in 2009, the virus has grown a thousandfold since then and continues to grow (at a great pace).

Is it true that it really looks like mikhur? Lopne? It’s entirely possible. This May, there is an ambiguity regarding the state's cryptocurrency.

A Bitcoin coin is only a product created on the principles of BlockChain, and all its parts are not closely related to the technology itself. Cryptocurrency is essentially a testing ground for blockchain. And from a technical point of view, everything is going just miraculously. And here the further share of Bitcoin is not at all important, since it is just a “test piece”.

On the basis of BlockChain, you can easily create any other cryptocurrency, for example, it is completely secured and legalized on the national level. What will happen? I'm amazed how completely possible it is. The thing is handy and not only will we describe the more technical features.

Why keep talking about this technology all at once?

Let’s take a look at these advantages that the advancement of blockchain technology can bring into our lives:

1. “A skripal is not needed” - do you remember this phrase from the legendary movie scene? So the axis, over there is really stastosovna. With this new technology, there is a need to get a “third party” on time, because the system, as I have already said, will bring transparency to everyone. Tim himself can essentially reduce the cost of spending and the terms of carrying out services (transactions or operations with data).
2. Blockchain is suitable for these systems, where there is a risk of security and information security. Ushogo, on which huge sums of money are spent at once. Moreover, in addition to the transparency of the technology, there is an inviolable security and security for all parties. Moreover, there is a defense and a kind of shyness (and “wiping out of control”) on the side of the system organizer for the decentralization process (like in bettorent - technically, do not spoil the attraction).

So now I need to be active Experimenting with BlockChain for example, there is an election process. Vision, security and security are also very important. In addition, it can be manipulated from the side by owners, evil ones and other negotiators. And there are no further roses about the handing over of the election (a priori). Beauty.

So, this technology itself can miraculously be adapted for maintaining regional cadastres, medical databases, legal databases, any kind of logistics, as well as for carrying out banking operations (even if you just “prescribe a medicine” - you can quickly speed up the time spent).

The whole point is that a voluntary decision is made (there is a lot of powerless inability to “unknowingly” get into the work of the system after it has been misled), and after all, it will be implemented and the blockchain will be in practice a right secondary (fortunately) after giving the administrator a dedicated base).

Problems in the implementation of BlockChain in life

1. For example, to maintain a high level of security, the system will require constant complex calculations, which can only work with an already large resource base. For Bitcoin, this problem was solved simply - they assigned a commission to those who donate their resources (the computing power of computers or specially selected systems - farms for mining) for this metal (on the basis of this principle The main way to earn bitcoins is mining).
2. So, for the safety of the entire system, it is extremely important that these resources be divided and not be under the care of any group (for example, that is responsible for the storage unit), which can be used to prevent stress in the hands of these filthy manipulations.
3. Whom you can still save on robots and profits (of large intermediaries), and for those who don’t want to put chains in the wheels even at the initial (most complex) stage of introducing technology into life.

Blockchain on the Bitcoin side

BlockChain is simply a simple one-link list of blocks with transaction information. Each new block changes the state of the entire distributed database. This means that if you change (with intention), then the hashes of the upcoming blocks will change and the items will not be replaced in the place of the old one.

The outside world is not the measure of integrity. It is possible to calculate the hash of any number (using a simple formula), but from the hash it is impossible to recreate the number, which means it is impossible to add a fraction in such a database.

Now real butt of BlockChain robots in the Bitcoin system. Dali Tezovo:

1. Transactions in this system are signed (trusted) in batches (or blocks).
2. The frequency of new blocks appearing (added) is built into the system's algorithm: in order to sign one block (issue a new penny unit), you need to find the necessary hash (by brute force, because it is impossible to renew the a priori number from the hash and is it lost? It’s easier to calculate a hash without an end for numbers taken as inspiration , Until I finally come across the required hash option).
3. In this case, the complexity of the searched hash is set algorithmically depending on the system tasks (the complexity of the template in which the hash can be inserted is changed). In Bitcoin, the frequency of the appearance of a new unit (the appearance of a new block) is approximately ten days. Obviously, the greater the complexity of the miner’s system, the greater the reliability that the mining block can be given to the system itself and taken away for this wine.
4. Clients of the system can generate as many as a million transactions (transfers) per second, and the number of nodes is accepted from the moment of signing the draft block (a type of draft unit).
5. Moreover, the transaction will be entered unconfirmed until the appearance of several new blocks (generation of penny units), to protect the appeared, for example, at the local border, and then thrown out by the main lance of the blocks).
6. It is necessary to use the basis of transactions to avoid uncontrolled growth in a special manner by compressing (indeed, reducing) the “control points” framework. Consensus algorithms periodically confirm the title of “reference” block, before which it is possible not to save the lanyard of blocks. Such control blocks are periodically created (marked). Otherwise, the Bitcoin base would be inaccessible.

I want to shout out why cryptocurrency - it’s not worth it. In any case, bitcoins are a fully convertible currency.

For them Swedish exchange in rubles, dollars or other electronic currencies you can use online exchange services, for example:

And for a more subtle game, you can earn additional income on courses crypto exchanges:

This is how the great and greedy blockchain looks like, which can be easily described in simple words. If you want to use words, it’s not entirely forgivable, but it’s technology that works 🙂

Good luck to you! See you soon on the blog site

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BlockChain.info is a popular online cryptocurrency website from the Russian language on the official website BlockChain.info CoinMarketCap - official website for the cryptocurrency rating CoinMarketCap (Cryptocurrency Market Capitalizations) Cryptonator - an online gambler for cryptocurrencies with an easy login, but not very good tricks Tokens - what is this in cryptocurrency and other areas Cryptocurrency - what is it in simple words, how everything is in control and the list of top-rated crypto-currencies. Gamanets for cryptocurrency - how to create it and which is better: cold, multi-currency, hardware or online crypto-gamanets
Mining - what is it in simple words and how to earn money by mining bitcoins and other cryptocurrencies Satoshi - what is it, how much satoshi is in 1 bitcoin, what is its exchange rate to the ruble and who is Satoshi Nakamoto BitFlip - an overview of the cryptocurrency exchange and how to invest in bitcoins through BitFlip Altcoin - what is it, the top most popular cryptocurrencies and which altcoins should you invest in now?