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I want to know whether what is a blockchain technology...? If you know, please explain as simple as possible.... 

Blockchain is the digital and decentralized ledger that records all transactions. Every time someone buys digital coins on a decentralized exchange, sells coins, transfers coins, or buys a good or service with virtual coins, a ledger records that transaction, often in an encrypted fashion, to protect it from cybercriminals. These transactions are also recorded and processed without a third-party provider, which is usually a bank.

in my opinion Basically in the activities in the field of technology is done data processing and in the processing of data that many elements in it such as where data is placed how data is made how data is distributed and the other is blockchain is one of the technologies that reverse the rapid development of cryptocurrency in the world and also the blockchain technology is a multiserver data storage technology or composed of many servers.

Block chain technology is the publicly distributed ledger system which records all the crypto currency transactions all through out the globe and every one can view the transactions recorded in the block chain system which makes it easier for further auditing. Block chain system all the transactions are recorded in a clear and system way so no one will be able to manipulate the block chain system as it is a system generated technology or can be called the decentralized  which does not have any central authority for controlling the system.

Well to my own little knowledge about cryptocurrency

I think it's a channel in where all bitcoin transactions go through, record every of the bitcoins that goes out and comes in.

If you are new and want to learn about blockchain technology, then you can watch some video about this on youtube.
https://www.youtube.com/watch?v=qOVAbKKSH10
This is the complete video about blockchain. Hopefully, this video will help you improve your knowledge of blockchain technology and cryptocurrency

BlockChain Technology is an extraordinary method of the current digital era. BlockChain technology is being used in many countries around the world. I do not know too much about the blockchain. I think the blockchain system is a complex system, so I want to know more about it.

Blockchain is a type of distributed ledger for maintaining a permanent and tamper-proof record of transactional data. A blockchain functions as a decentralized database that is managed by computers belonging to a peer-to-peer (P2P) network. Each of the computers in the distributed network maintains a copy of the ledger to prevent a single point of failure (SPOF) and all copies are updated and validated simultaneously.

Block chain technology is the publicly distributed ledger system which records all the crypto currency transactions all through out the globe and every one can view the transactions recorded in the block chain system which makes it easier for further auditing. Block chain system all the transactions are recorded in a clear and system way so no one will be able to manipulate the block chain system as it is a system generated technology or can be called the decentralized  which does not have any central authority for controlling the system. I think you understand now

Gday :)


Here's my attempt at a simple explanation :

The blockchain is a de-centralized database
The database (called the 'blockchain' because it's a chain of blocks of data) that stores the bitcoins is distributed over the 'cloud' - it is not found in any central location, but copied in many computers on the internet.

The blockchain is safe.
The blockchain is protected with secure encryption like the NSA uses - it cannot be hacked (yet). It's called a 'chain' because each block is linked to the previous one in a way that makes it un-hackable.

The blockchain only grows, it cannot be edited.
The blockchain is a form of ledger - it is only ever ADDED to, with one block added at intervals (about every 10 minutes.)

The blockchain (i.e. all transactions) are public.
Everyone can see the entire blockchain, with every bitcoin transaction that has ever happened. You can watch the blockchain and its transactions right here :
https://blockchain.com/

Bitcoins are located at an 'address'.
All bitcoins are located at what is called a bitcoin address. An address is a big number like this example : 1AGNa15ZQXAZUgFiqJ2i7Z2DPU2J6hW62i (that is an address of some random person.)
It's actually a 'public key' - one half of a key pair. A key pair is two mathematically related large numbers : 1) the public key (the address) and 2) the private key.

Bitcoins go from one address to another.
A bitcoin transaction consists of sending an amount of bitcoins (which can be fractional) from one address to another. Anyone can send TO an address - it is public. But to take FROM an address you must have the private key associated with that address. Which must be kept secret of course.

Bitcoin transactions are bundled into a block.
As bitcoin transactions occur, they are accumulated in a temporary buffer (the 'mempool'). After about 10 minutes they are bundled up into a block which is then added to the block chain.

Bitcoins are created every block.
Bitcoins are brought into existence (and sent to the miner's address) every time a block is added to the block-chain. They are the reward for creating the block. Currently the reward is 12.5 bitcoin per block. That's about US$6200 every 10 minutes. Almost a million US$ per day. It's called bitcoin 'mining'.

The cost is electricity
The cost of mining bitcoins is measured in kWh - it takes a lot of electric power to mine bitcoins, and the cost (usually) increases. Because as computers get faster, bitcoin adjusts its formula to match (so that the block time is always around 10 minutes).

Mining requires a lot of computation.
The process of mining a block requires a lot of processing power. Mining is based on a hashing function of the block - a complex formula that takes all the data in the block and spits out one big number calculated from it (like a checksum or signature). That number (called the hash) is essentially random digits. But with just the right magic number (called the nonce) added into the block data, the hash will start with all '0s'. Mining involves trying hugely many different nonces until the hash produces enough '0's at the start. The first miner to get the right hash has their block added to the blockchain and they are rewarded with the 12.5 BTC (this reward halves every few years.) Then the transactions in that block are cleared from the mempool, and all the miners start again trying to hash out a new block.


Kapyong

as I know, basically blockchain is a ledger that records all crypto transactions. with that, we can know the transaction happened, but not with the person's name, because it is anonymous and only the address is recorded there.

Blockchain technology is made for bitcoin. It is a public and digital ledger that are linked and secured with cryptograph. The purpose of blockchain technology is to record all the data or transactions that is happening inside the bitcoin system. It serves as the record list or the database. It is recorded publicly and chronologically.

Off course I know and understand what is blockchain. It is a a digital ledger in which transactions made in bitcoin or another cryptocurrency are recorded chronologically and publicly. A system in which a record of transactions made in bitcoin or another cryptocurrency are maintained across several computers that are linked in a peer-to-peer network.

blockchain is a widespread database system in a network or transaction logging technology integrated with modern technology.
blockchain is very important in creating a digital currency, one of which is bitcoin.
The blockchain system does not use a third party as its center, but uses multiple parties or computers scattered within the network itself. This will make irresponsible people into trouble breaking into the system and have a small probability that will occur.

We all know we are dealing with number of  cryptocurrencies and specially in bitcoin.  These all are digital transactions.  Recording of these decentralized  transactions in a ledger known as Public Ledger is called blockchain.  The most recent transactions are growing a completed blocks which are being recorded and added to it in chronological order.  Market participants can keep track of these digital currency transactions without any centralized record keeping.  You can get a copy of the block chain if your computer is connected to network; which is downloaded automatically.

It was the bitcoin for which an accounting method was developed by using distributed ledger technology.  It appears in variety of commercial applications now a days.

Now this technology is basically being used to verify transactions.  Now any document after digitizing and coding can be inserted into blockchain.  Then it creates indelible record which is not possible to change.  The authenticity of the records can be verified by any user / member / person by using the blockchain without the help of any centralized authority because it being decentralized.

Blockchain technology is the modern innovation of transactions. Where all transactions are not worth the transaction, all can be recorded. And the Blockchain system is going to be a global transaction media.

blockchain is basically database system which manipulate the transaction of the users, it process is bit complicated that's why it is hard for some users to understand it ,and blockchai also does have any direct controllers so publicity usual happen so for knowing about it better visit their own officially sites

i am new in krypto world ... i do not know yet fully

Blockchain is an incorruptible digital ledger of economic transactions that can be programmed to record not just financial transactions but virtually everything of value ,its like internet in that it has a built in robustness by storing blocks of information that are identical across its network ,blockchain cannot be controlled by any single entity and has no single point of failure.

Hi cryptoaro, please take a look at the Bitcoin whitepaper,  was published in 2008 by Satoshi Nakamoto.
The birth of the Blockchain https://bitcoin.org/bitcoin.pdf (https://bitcoin.org/bitcoin.pdf)
It is a little more explained here https://www.bitcoin.com/guides/bitcoin-white-paper-beginner-guide (https://www.bitcoin.com/guides/bitcoin-white-paper-beginner-guide)

Blockchain is a digital ledger where all transactions are recorded. It has good technological skills for which people feel it as most trustworthy than others.

Careful here. A lot of these explanations in this thread are either way oversimplified or wrong and describing something more like a database.

Blockchain technology is widely used by cryptocurrencies and it is digital, decentralized public ledger. The use of it is to record all the transactions and compile all the data or information inside the bitcoin. It a growing list of records that was called blocks. It is also known as the database which manipulate and tracked all the transaction between two parties.

It is a method of exchange which eliminates the purpose of a middle man, such as banks. It is a digital and decentralized ledger just like accounting which keep s record of all the transactions. It is encrypted, to protect the coins from potential hackers. This technology is an extraordinary method in this market.

To my little knowledge Blockchain is a ledger that records all the transactions made with Bitcoin.

For me blockchain is the distributed ,public digital ledger.It is made  for bitcoin and its look like a chain of block.It is linked and secured by cryotograph.It  also called a database because it records all the data chronologically and publicly.

In simple words blockchain is nothing but a decentralized database. This concept is really innovative too and thus is being used not only in crypto but also in many big companies.

All the transactions can be seen in using blockchain technology and in fact you can see all your past transactions through the use of it and as what you have said it serves as a record list in which all the data gathered into one chain.

As far as i know blockchain is a technology and it provides security in this market. This technology collects all the data and transaction history also. For protecting hack blockchain need more development.

What I know is that blockchain is a place to store crypto currencies like bitcoin, ethereum and bitcoin cash. Also maybe I do not know because I also just started to enter the world of crypto.

blockchain.The most recent transactions are growing a completed blocks which are being recordings and added to it in chronological orders.Market participants can keep track of these digital currency.

A blockchain, originally block chain, is a continuously growing list of records, called blocks, which are linked and secured using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data.

Blockchain is a kind of wallet which was discovered only for Bitcoin transactions as bitcoin is the first digital currency which can be traded in online.  But now-a-days Bitcoin, Ether, Bitcoin Cash can be traded by blockchain.
Like paper money and gold before it, bitcoin and ether allow parties to exchange value. Unlike its predecessors, it is digital and decentralized. For the first time in history, people can exchange value without intermediaries which translates to greater control of funds and lower fees.

Blockchain is connecting the world to the future of finance. It is the most trusted and fastest growing crypto company. They are helping millions across the globe – from single individuals to the largest institutions. It is an easy and safe way to access crypto-currency. Through the use of block chain technology, Blockchain is revolutionizing the $14T financial services industry. Blockchain has raised over $70 million in funding from leading investors including Light-speed Venture Partners and Google Ventures.

I don't know the detail, but all I know blockchain is a system that manages all cryptocurrency transaction activities, or it can be said as a wallet to store coins. can be likened to a bank in the real world

It is like a public ledger, If you send bitcoin to a friend or sell it. That information is publicly available in the blockchain, other may not know your identity, but they know exactly how much value has been transferred from one person to another. Many people see blockchain as an alternative to traditional banking. Instead of needing a bank or some other institution to verify the transfer of money you can used blockchain and eliminate the middleman.

Blockchain is the world's most trusted all-in- one crypto company, Blockchain is the technology set to change the way we deal with money. With the development of this decentralized ledger system – a host of opportunities have opened up.

Bitcoin is a trading medium that can easily be traded from one place to another and all have records. Bitcoin is playing a pivotal role in this blockchain.

Blockchain is a shared record of past transactions in a cryptocurrency network and
Chain Technology is an extraordinary method of the current digital era and BlockChain technology is used in many countries around the world.

This is the simplest and almost complete explanation about blockchain and for the OP i think this is enough for you to understand what is blockchain all about


Adding to the first mentioned this is another characteristic of blockchain thats why many people are converting their money from banks to crypto and specially no third party interception

I think blockchin is the technology set to change the way we deal with money. It is the most trusted and fastest growing crypto company.this technology is an unusual process in this market.

Blockchain is part of computer system to Distrtube the data access of the computer
Blockchain taking advantage to use of the expert for the new technology of new digital cryptocurrency to transanfer funds using internet connection and blockchain access data.

The blockchain is what you called a decentralized ledger on a digital basis where everything gets recorded on a block that includes every single transaction like buying the crypto coins, selling those coins, transferring those coins, and backing up digital goods and services based on those coins. It is stored in an encrypted manner by which hackers cannot steal it and also it is a peer to peer technology where it does not involve the third party like the bank.

The blockchain is a digital and decentralized ledger technology by which each and every exchange can be recorded.

Blockchain was invented by Satoshi Nakamoto in 2008 to serve as the public transaction ledger of the cryptocurrency bitcoin. The invention of the blockchain for bitcoin made it the first digital currency to solve the double-spending problem without the need of a trusted authority or central server. The bitcoin design has inspired other applications.

Blockchain is a digital technology build with the concept of decentralization. Basically, blockchain is a way of creating a decentralized global market to record transactions for its future use.

Have never bothered to answer to answer this question myself but I think it stands is related to digital ledger which the public can have access to when the transaction is done.

It's more like a data structure that can be used in a distributed network to settle the question of transaction priority in an objective manner. And by doing that it solves the problem of double spends.

We all know what a blockchain is, that is the main reason of why we all are still in here. A blockchain is what is inside bitcoin, without the entire blockchain technology, there would not be any bitcoin in here, and we all already know that.

I know a little bit about blockchain technologies and I am sharing it with you. It is a decentralized database network and it keeps all data about transaction of bitcoin.

A blockchain is a decentralized, distributed and public digital ledger that is used to record transactions across many computers so that the record cannot be altered retroactively without the alteration of all subsequent blocks and the consensus of the network. This allows the participants to verify and audit transactions inexpensively. A blockchain database is managed autonomously using a peer-to-peer network and a distributed timestamping server. They are authenticated by mass collaboration powered by collective self-interests.

an openly distributed ledger system that records all crypto currency transactions worldwide and everyone can view transactions recorded in a block-chain system that make it easier for further audits. The block chains system of all transactions is recorded in a clear and systematic way so that no one can manipulate the block chain system because it is a technology-generated system or can be called decentralized that has no authority BlockChain's technology is a remarkable method of the current digital era. BlockChain technology is used in many countries around the world. I do not know much about blockchain. I think the blockchain system is a complicated system, so I want to know more about it.

There are more answers with that question but the best thing to know what black chain is an undeniably ingenious invention – the brainchild of a person or group of people known by the pseudonym,  Satoshi Nakamoto. But since then, it has evolved into something greater, and the main question every single person is asking is: What is Blockchain? By allowing digital information to be distributed but not copied, blockchain technology created the backbone of a new type of internet. Originally devised for the digital currency, Bitcoin,  (Buy Bitcoin) the tech community is now finding other potential uses for the technology. There are more factor can describe blackchain.

Mainly Blockchain is a system also it have good reputations in market many big companies are using this because if its value based on this it’s a decentralize system so everything is clear and transparent to the users also it is using in Crypto market also , BMW , UPS , walmart etc.

Blockchain is basically a growing list of records which includes the buying, selling i.e exchange of products between two efficient individuals or parties. This is widely used in Cryptocurrencies. And it records transactions in a verifiable and permanent way.

Blockchain is a technology introduced with Bitcoin by one or a group calling itself Satoshi Nakamoto which was originally used to record the financial transactions of bitcoin.
Simple blockchain is a data structure that can not be changed can only be added only. Each data from this blockchain is connected where if there is a change in one of the data block it will affect the next data.

A blockchain, originally block chain, is a growing list of records, called blocks, which are linked using cryptography. Blockchains which are readable by the public are widely used by cryptocurrencies. The invention of the blockchain for bitcoin made it the first digital currency to solve the double-spending problem without the need of a trusted authority or central server. The bitcoin design has inspired other applications.

Blockchain is basically a data structure which hold data related to crypto transaction. You may google it also.

In essence, Blockchain is a transparent publicly accessible ledger. Using public key encryption and proof of work methods, it enables us to securely transfer money. It has some following features:
1. Every verified transaction is added to the ledger as a “block”. Thus all data exchanges are kept.
2. Each transaction is verified by a distributed system, or a peer-to-peer network.
3. Transactions are irreversible, meaning that once sent it is impossible to reverse the transaction to recover them.

You can visualize that Blockchain is a shared ledger which keeps record every transaction performed through it. The network runs as following steps:
1) New transactions are broadcast to all nodes.
2) Each node collects new transactions into a block.
3) Each node works on finding a difficult proof-of-work for its block.
4) When a node finds a proof-of-work, it broadcasts the block to all nodes.
5) Nodes accept the block only if all transactions in it are valid and not already spent.
6) Nodes express their acceptance of the block by working on creating the next block in the
chain, using the hash of the accepted block as the previous hash.

Blockchain is a decentralized database that stores a a registry of asset and transactions across a peer-to-peer network. It's basically a public ledger showing who owns what and who transacts what. Through the cryptography, the transactions are secured. Over time, that transaction history get locked in blocks of data that are then cryptographically linked and together and secured.

Yes of courses

The blockchain technology is extremely helpful for the world of crypto currency. the blockchain is ledger where all the transaction of the crypto currency is recorded. The best part of it is that it cannot be edited, once an amount is transferred it is recorded and the record cannot be erased. Also the encryption system is very secure keeping away hackers.

Block chain is a decentralized distributed and public digital ledger that is used to record transaction across many computers so that the record can't be altered retroactively without the alteration of all subsequent blocks and the consensus of The network I think those are  blockchain.

Note to everyone here: please do not use word 'ledger' when you explain the blockchain, especially to non-English-natives, nobody knows that word :)

blockcahain is a latest technology what makes life easier by its work.Actually it works as a chain that's how youu can store your information, communicate others, find information easily to make a step easily. So that we can say easily its great innovation that helps you make life easier

Blockchain is a technology introduced with Bitcoin by one or a group calling itself Satoshi Nakamoto which was originally used to record the financial transactions of bitcoin.

Simple blockchain is a data structure that can not be changed can only be added only. Each data from this blockchain is connected where if there is a change in one of the data block it will affect the next data.

Blockchain was also made with a mysterious name Satoshi Nakamoto. Blockchain is a public and digital ledger it is commonly used in transaction and business. It is the most trusted all in one in crypto's company. The real usage of blockchain is to record all the transaction inside bitcoin and it is also known as a database it also records information publicly and chronologically. It is a growing list of records that are called blocks. That's why it called blockchain because it looks like a block of chain.

Hi

1) I think this is one of the best Blockchain Technology guides you can find in the internet
https://101blockchains.com/ultimate-blockchain-technology-guide/

2) As you are newbie I would suggest not missing the beginner's glossary
https://101blockchains.com/blockchain-definitions/

3) And once you got this 2 you are ready to understand Real World Blockchain Application and Use Cases.
https://101blockchains.com/blockchain-applications/

Hope it helps
Aviv

Blockchain is a technology that securely transfers data based on a very complex coding system, similar to a company's accounting ledger, where cash is closely monitored. In this case Blockchain is an accounting ledger operating in the digital domain.
Blockchain owns a very special feature that is the transmission of data does not require an intermediary to confirm the information. The Blockchain system has many independent nodes that can authenticate information without requiring a "sign of trust". The information in Blockchain can not be changed and only be added with the consent of all nodes in the system. This is a high security system against the possibility of data theft. Even if part of the Blockchain system collapses, the computers and other nodes will continue to protect the information and keep the network going.

For someone who would like to discover what is blockchain and related terms, there you go:
Available courses on Bitcoin and Blockchain Technology from colleges and Universities (https://bitcointalk.org/index.php?topic=4686783.0)
This topic was created by myself as small effort to help newbies with helpful available courses on blockchain technology.

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My collection includes both traditional and online courses. You can choose the most relevant ones for your interests and your financial budget.
Of course, most of the courses are free one.
So, you can freely enjoy them!

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This 'strange' searching tool can help you to find helpful courses, articles for your own interests:
https://duckduckgo.com/
It's better if you spend your time to find what you want by yourself. It doesn't make sense if I or someone else give you tons of sources, then you won't use them.  :-\
I only give you basic courses and efficient tools for you.
You should use them as most efficient as possible.

Blockchain is being used in bitcoin it is also made by anonymous person Satoshi Nakamoto. The reason why he created blockchain technology is to record and stored data or informatin and also the transactions that are happenimg inside the bitcoin system. This is a digital ledger that commonly used in business and transaction. Tbis blockchain was protected and secured with cryptograph.

the simple blockchain is an online global database-which can be used anywhere in the world connected to the internet. Unlike other databases that are usually owned by certain institutions such as banks or governments, Blockchain does not belong to anyone. Make it more transparent because it can be accessed by anyone.

Like a parent ledger in a bank that records all customer transactions, Blockchain also records all transactions the user performs. It's just that, if the parent book only can be seen and checked by the authorities in the bank, then all transactions through Blockchain can be seen by all users. Because the Blockchain information warehouse is permanently stored throughout the network of its users, because the information collected is also distributed to everyone.

Hey, Blockchain acts as a ledger which contain all records of crypto transactions.
It just a digital Wallet.By which we can check all cryptos transaction in here.

Blockchain a digital ledger in which transactions made in cryptocurrency world .

The blockchain is the digital and decentralized ledger that records all transactions. Every time someone buys and sells digital coins on a decentralized exchange, a ledger records that transaction.

Don’t know much about it but these are something that record the cryptos.

Don & Alex Tapscott, authors Blockchain Revolution (2016)

I think blockchains are something that deals with the currency transactions.

And more, Split ledgers allow simple contract coding to be executed when certain conditions are met. Ethereum is an open source blockchain project, built specifically to meet this requirement. However, in the early stages of development, Ethereum has the potential to take advantage of blockchain on a much larger scale like so much.

At the current level of technology development, smart contracts can be programmed to perform simple functions. For example, a derivative transaction may be settled when a financial instrument satisfies certain criteria, with the use of blockchain and Bitcoin technology that allows for automated payments, without human involvement or intermediary witness.

It is something in which all the transactions that happens goes through.

The blockchain stores all the transactions, and groups them into blocks. Each block is linked(chained) together through hash functions.
That is why it is call blockchain.

Note that Satoshi Nakamoto does not use the term blockchain in his Bitcoin whitepaper at all. Blockchain is a term later given to the way Bitcoin transactions were being stored. This idea of linking data together through hash functions was first described in a paper from the early 90s. In fact this paper is one of Satoshi Nakamoto's sources he sites in his Bitcoin whitepaper.

Technology that allows no central party to verify transactions. You need huge distributed calculated power to achieve that.
Most people forget that and talking about blockchain while its not it :D

As far as I know, blockchain is considered as a decentralized, peer-to-peer transaction. Using this technology, participants can transact without the need for a centralized authentication unit. Potential applications for blockchain applications are money transfer, trade, election, and more.

The blockchain is a ledger that records all transactions. Blockchain technology has many other uses where Bitcoin currency is just one of them. The blockchain technology platform allows strangers to trade safely without mutual trust.
In addition, blockchain technology opens up a potential application trend for many areas such as banking and finance, retail, transportation, manufacturing, telecommunications ...

Blockchain is a public-registry technology that uses digital signatures and cryptographic hashes to provide records of secure transactions that can not be changed.

I've found what is most useful is checking youtube videos to answer all your beginner questions. :)

Hey,
In one word it just a wallet to hold bitcoin. It just a ledger where all transaction history stored of your bitcoin wallet.

You can understand Blockchain is a technology that allows secure data transmission based on extremely complex coding systems. The Blockchain system is divided into three categories:
-Public: Anyone has the right to read and write data on Blockchain. Authentication process on this blockchain requires thousands or tens of thousands of participants. Therefore, it is impossible to attack the Blockchain system because of its high cost.
-Private: The user is allowed to read the data, not write permission, because it belongs to the third party trusted.
-Permissioned: Also known as the Consortium, a form of Private but augmented with certain features, combining "trust" with public participation and "absolute trust" when joining Private.

The blockchain is the technology behind Bitcoin and allows digital money like Bitcoin to work. Blockchain specifically promotes its strength in managing and trading all types of online assets that are most commonly present in copper bitcoins.

The blockchain is a technology that allows secure data transmission based on the encryption system. Blockchain possesses a very special feature that the transmission of data does not require an intermediary to confirm the information.

Blockchain or the ledger, its original name is a blockchain, is a database system of information, which is used to store information in linked blocks, and is managed by Everyone participates in the system, instead of a separate third parties such as the state or the central bank; It also allows for secure data transmission with a complex encryption system, and is scalable over time.

It's a series of keys that record the entire set of keys

The blockchain is a technology that enables secure data transmission based on extremely complex coding systems. Blockchain owns a very special feature: data transfer does not require an intermediary to confirm the information

The blockchain is an information database system used to store information in linked blocks and is managed by all participants in the system, not the third party such as the government or the bank. It also enables secure data transmission with a complex and extended encryption system over time.

All data on the Internet is easily copied. As we know, Bitcoin is just one application of Blockchain technology, meaning that each Bitcoin transaction is just one file.
Normally, when dealing online, we will need a third party that we trust (eg, intermediary, shipping company, bank ...) with a database set to verify the transaction to prevent fraud when the crooks use this file repeatedly.
Blockchain technology solves this problem without the need for a reliable third party.
The blockchain is a ledger that records all transactions

The blockchain is a technology that securely transfers data based on a very complex coding system, similar to a company's accounting ledger, where cash is closely monitored.

Blockchain technology is similar to a database, just different in interacting with a database. To understand blockchain, it is important to understand the following five definitions: block chaining, distributed consensus mechanisms, reliable computing, intelligent contracts, and work proof. This computational model is the basis for creating distributed applications.

Technically, blockchain provides a hierarchical data called "digital ledger" and uses encryption technologies. Everyone can see their transactions. This network is basically a series of computers that all have to approve a transaction before it can be validated and recorded. It's like sending a letter and everyone confirms the letter is yours. Your letter will be sent to various computers and confirmed, the contents of the letter will be scattered and re-entered into a matching string.

In a very simple language: It is a kind of data structure which stores information about crypto transaction.

Blockchain is one technology that does not use third parties in the data exchange process or in the transaction process.

The example is, if you buy something in the store by using a debit card, the third parties here are banks that connecting the buyers and sellers in the transaction using the debit card. But in the bitcoin, seller and buyer can be directly connected without third parties assistance.

A blockchain is a digital and decentralized accounting that records all transactions. Whenever someone buys digital coins on a decentralized exchange the registry registers this transaction to protect it from hackers.