What do you mean by Blockchain Currency?

Before understanding how blockchain and cryptocurrency twin together, let us first brief you about the precepts of cryptocurrency.

What exactly is Blockchain Cryptocurrency?

Basically, a digital asset, blockchain cryptocurrency is designed to work as a medium of exchange. Unlike physical currencies, blockchain cryptocurrency works on digital channels and are often adhered to strong cryptography to secure financial transactions that happen online. These cryptographs or encryption layers may also be used to control the creation of additional units and verify the transfer of assets. Blockchain cryptocurrency can have several types. They are Bitcoin, Litecoin, Ripple, Ether, etc.
what is a cryptocurrency
With the advent of blockchain currency, it became possible to create something that is not possible to be duplicated and can be sent directly from one person to another. These transactions do not require a trusted third party, organization, or computer server in the middle that serves as the source of trust.
The supply and value of cryptocurrencies are controlled by the activities of their users and highly complex protocols which are built into governing codes. In particular, the activities of miners—cryptocurrency users who anchor sophisticated computing functions to record transactions and receive newly created cryptocurrency units and transaction fees—are critical to the stability and smooth functioning of cryptocurrencies.
Following is a detailed diagram of how cryptocurrencies work in real time.

How Do Cryptocurrencies Work?

The most striking difference between blockchain currency and physical currency is the fact that blockchain cryptocurrency uses a decentralized system for controlling transactions as opposed to the centralized digital currencies and central banking systems. This decentralized feature is based on a distributed ledger technology which is typically a blockchain that serves as a public financial transaction database.
So, what do we understand from this?
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Blockchain and Cryptocurrency are not the same, as they have been referred to historically!

While blockchain currency is a mode for online transactions, blockchain is the technology underlying it. Blockchain drives the whole concept of cryptocurrency. It is interesting to note that blockchain was designed to manage cryptocurrencies. Blockchain simply stores data on a distributed ledger. Different blockchain projects aim to store different types of data on their blockchains, from real estate details to contracts, and, of course, to virtual currency values. Cryptocurrency is just another type of data that can be stored on a blockchain.
PS: As a matter of fact, bitcoin—the most popular type of blockchain cryptocurrency—was the first implementation of blockchain currency.

Blockchain and Cryptocurrency: A lasting love affair

The blockchain of a cryptocurrency is the master ledger that generally records all prior transactions and activities, validating the ownerships of all units of the currency at any given point of time. The blockchain contains the entire transaction history of a cryptocurrency as a record. It has a finite length containing a finite number of transactions that eventually surges in due course of time. Identical copies of the blockchain are stored in every node of the cryptocurrency’s software network. This network of decentralized server farms is managed by tech-savvy individuals or groups of individuals known as miners. Miners continually record and authenticate cryptocurrency transactions.
ptocurrencies and Blockcha
A blockchain currency transaction technically isn’t necessarily finalized until it has been added to the blockchain. Once the transaction is finalized, it is usually irreversible. Unlike traditional payment processors, such as PayPal and credit cards modes of transactions, most cryptocurrencies have no built-in refund or chargeback functions. During the lag time between the transaction’s initiation and finalization, cryptocurrency units cannot be used by either party. They are held in a state of freeze down for all intents and purposes. Blockchain thus prevents double spending or the manipulation of cryptocurrency code to allow the same currency units to be duplicated and sent to multiple recipients.

Basis of ComparisonBlockchainCryptocurrency
NatureA technology that records transactionsTools used in virtual exchanges
UseRecord transactionsMake payments, investments, and storage of wealth
ValueHave monetary valueHave no monetary value
MobilityCan be transferredCan’t be transferred

While cryptocurrency transactions depict security, there are certain aspects that question the authenticity of their existence. To mitigate these allegations on authenticity, there was a need to develop a fool proof technology that would not only make online cryptocurrency transactions safe but also construct an impregnable firewall through which hackers can’t penetrate. This is where the blockchain took the centre stage. Apart from providing a secure platform, blockchains also ensured that transparency is the key to all cryptocurrency transactions.
With blockchains, any person on the Internet can have a sneak through at transactions that have happened on a cryptocurrency unit since its inception. This allows users to transparently traverse through transactions. Also, the ledger can be copied onto every computer in the world. This means that there exists no centralized place which a hacker can leverage to tamper with transactional data.
Assume that hackers became successful doing that. Still, they won’t be able to change any of the previous blocks of transactions as all these blocks are knitted with each other in a chain in a perfect order of cryptography. Any bitcoin transaction that ever happens is walled off and grouped together into blocks within 10 minutes of its successful completion. Each block contains a hash code which links it with its previous block, thereby making the whole blockchain system tamper proof. If any information is tried to be changed within a block, the block will generate a new hash code, signifying what is the original data in the block and what is not.

You might be wondering, where do these bitcoins and blocks even come from in the first place?

Remember that a block is simply a collection of transactions that are grouped into a whole and labelled as a block. Each block is generated after a certain period which is referred to as block time. The bitcoin block time is 10 minutes, and other blockchains can have different block times.
But, what about the bitcoins and cryptocurrencies? Where do they come from?
In the case of bitcoins and most cryptocurrencies, they are created through a process called mining.
We shall discuss more about mining in the following modules of the Blockchain tutorial. Further, find the best offer for getting Blockchain Certification through our online courses.

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