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It is possible that you have been hearing this word “blockchain technology”. It may be in the reference of cryptocurrency or Bitcoin. In this blog, we would be discussing blockchain info that is needed for the beginners in this area of cryptocurrencies. One thinks we can definitely say that digital currencies like Bitcoin were not possible without the existent of blockchain companies.

A Small History About Blockchain Technology

It is good to know a little bit of history on the blockchain technology. In the initial days, it wasn’t used for the cryptocurrency. Blockchain was started as computer science concept related to the domain of data structures and cryptography.

In the primal form of the blockchain was Merkle tree, also known as a hash tree. It was patented by Ralph Merkle in 1979, this data structure was used to verify & operate data between computer systems. It was important for peer to peer network sharing due to the chances of data alteration during this process. Blockchain also helps to ensure that false data shouldn’t be sent during the process.

In 1991 first cryptographically secured chain of blocks was created by W. Scott Stornetta and Stuart Haber. It was the first “secured chain of blocks” was created with help of Merkle tree (Hash tree).

The first blockchain was conceptualized by Satoshi Nakamoto in 2008, the next year Bitcoin Cryptocurrency was introduced in January 2009. It contains secured chain of blocks that are used for peer to peer network to verify coin exchange and managed autonomously without having any central body of authority. The blockchain technology was the main concept used in Bitcoin and after this, so many cryptocurrencies came to market.

What Is Blockchain Technology?

The blockchain technology developed after word 2009 was more sophisticated. The blocks are a series of data records, each block connected to the previous one. It contains the history of the entire chain thus it called a blockchain.

Blockchain definition:

The blockchain is public domain in which two users form the computer network to do the transactions. The transaction will be securely stored, verify in a permanent way. The data about the exchange is stored in cryptographic blocks that are connected to each other in a hierarchical manner, this creates an endless chain of blocks hence it is called as Blockchain.

Important points to know about blockchain wallet or technology such as:

 
  • Leader: blockchain keeps the record of all data transactions and these data records referred to as a leader in the digital or cryptocurrency world. Every transaction is stored in the ledger as a block.
  • A Peer To Peer Network: This transaction is done through a distributed system for verification of each transaction with the help of a peer to peer network.
  • Once a singed & verified transaction done could not be changed in the blockchain.

How Does Blockchain Technology Work?

Before digging into how blockchain technology works you should know the concept of keys. Basically, there are two keys “Private Key” and “Public key” each indusial holds both these keys for a transaction through cryptocurrencies like Bitcoin. Combining both keys will generate a digital signature. Your private key allows you to sign and authorize the transaction on behalf of you and the public key for other people will find you from your public key. In the digital world, these public keys are your blockchain wallet address. Your private keys give you the power to authorizing withdrawals, and transactions with your digital wallet through your cryptocurrencies like Bitcoin. It is so important to keep secrete your private key. If anyone knows your private keys they can handle your digital transaction with it.

How to do the transaction?

If two individuals want to do a transaction through cryptocurrency, both will have a private key and public key. Blockchain will allow the first person to use his private key to connect with the public key of the second person and the transaction will like this and it will form a block that contains a digital signature, time, other relevant information about the transaction. The identities of both people will not be stored during this process. After this, all this block will be transferred across the blockchain network for the validation of this transaction.

This information and validation requires abandon amount of computer resources and it not possible because of millions of users doing their online transaction with blockchain cryptocurrency. The solution to this problem is known as blockchain

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