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Shrawan Neupane
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    Shrawan Kumar Neupane
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What Are Digital Currencies or Cryptocurrency

June 28, 2022

Cryptocurrencies are defined as a digital means of exchange that uses powerful encryption to safeguard financial transactions, limit the production of new units, and verify asset transfers.

We describe cryptocurrencies as follows, according to our glossary: A cryptocurrency is a digital means of exchange that uses strong encryption to safeguard financial transactions, regulate the production of extra units, and verify asset transfers.

Focus on the following elements: digital, strong cryptography, creation, transactions, and verification.

What made Bitcoin such a game-changing technology? It owes a large part of its success to its design, which prevents “double-spending.”

To ensure that the $1 you just got will not be spent by your sender in another transaction, we normally have to trust someone to keep track of who’s spending and getting what — either a bank in the case of digital assets or the dollar note physically leaving your wallet and never returning.

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Because Bitcoin recognized and avoided this issue, we’ll never have to wonder whether the dollar we just received is genuinely spendable by the sender, and we won’t require an intermediary to validate it. It’s analogous to taking money from your wallet. You can see for yourself that it’s no longer there after you’ve given it away.

This is a game-changing notion since they are digital assets that previously needed someone to validate transactions because there was no way to physically account for them.

Each transaction in Bitcoin is put to a “block,” which is subsequently attached to the end of a chain of blocks known as the “blockchain,” and no one can tamper with prior blocks after they have been verified. This is accomplished using strong cryptography and the SHA-256 cryptographic hash algorithm.

So, where does all of this Bitcoin originate? Miners, who operate computers or chips to solve cryptographic problems in a race to add a new block to the blockchain, are part of the process of verifying transactions on the blockchain. With each new block added, new bitcoins are produced to compensate these miners for their efforts in keeping the network secure.

The security of a blockchain necessitates the inclusion of miners. The proof-of-work mechanism requires the expenditure of real-world assets, like power, to confirm blocks: there is a cost before rewards are paid.

With this system, bad actors will have to spend a lot of resources to attack the blockchain; with others acting in the interest of receiving Bitcoin legitimately for their mining efforts, these attackers will have a hard time taking over 51 percent of the network and effectively controlling the majority.

Proof-of-stake, delegated proof-of-stake, proof-of-authority, proof-of-burn, proof-of-developer, and others are examples of consensus procedures. Each mechanism has its own set of advantages and disadvantages, so take the time to learn more about them by working on the projects that interest you the most.

Why Should You Be Concerned About Cryptocurrencies?

Governments and banks regulate the supply, issuance, and distribution of the money you use today, which is fiat currency issued as legal tender by the government. It’s usually sufficient for day-to-day transactions… as long as you trust your government and banks.

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Throughout history, we may find instances of governments hyperinflating their currency or banks holding money hostage from the families of people who possess it. It may also be inefficient, like when banks do not process an urgent international transfer on weekends because they are closed.

A person or individual known as Satoshi Nakamoto established Bitcoin, which was characterized as “a peer-to-peer electronic currency system,” in the aftermath of the financial crisis of 2007/2008.

This was most likely intended to be a dig at the existing financial system. Many banks were unable to remain solvent as a result of the financial crisis and had to depend on government bailouts to stay afloat, using taxpayers’ money. Many of the early proponents of cryptocurrencies were outspoken in their opposition to governments’ ability to simply “create money” to prop up the economy. When they do so, they are effectively devaluing people’s money and placing power in the hands of politicians who may not know how to best behave in their citizens’ best interests.

With the introduction of Bitcoin, many people began to see a clear path ahead toward a society where individuals had authority over their possessions. This, along with the emergence of large internet corporations that profited from selling their customers’ data, had the makings of a revolution. Idealists began to envision a society in which we emerge as sovereign individuals, with total control over our money, privacy, attention, and more — and the concept spread.

Cryptocurrencies’ Advantages

Trustless

Trustless is a misnomer since it refers to the ability to trust others more because you don’t have to trust anybody in particular. Nobody can tamper with the blockchain once your transaction in a block has been verified, therefore you may utilize it with confidence (barring an attack on the network). You may also use “smart contracts” to compel someone to fulfill their promises.

Control

You can handle and manage your assets without the use of any middlemen, which is related to the previous point. Just remember to keep your private keys secure!

Global

Anyone from anywhere on the planet may join the network, and you can send and receive bitcoins in minutes or seconds. As a result, even people who do not have access to the present banking system (the underbanked or unbanked) may participate in the global economy.

Transparent

On most blockchains, such as Bitcoin or Ethereum, you can look up every transaction that has ever occurred.

Well-known factors

Unlike traditional government-issued currencies, most cryptocurrencies have a predetermined supply timetable. This implies that, rather than being subject to the whims of a central authority, you can calculate an annual inflation rate once you know it.

Anytime

You may transact at any time, rather than waiting for the bank to open or operate.

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