What Is Cryptocurrency?

Using blockchain technology, cryptocurrency is decentralized digital money that is not controlled by any central authority. There are over 5,000 different cryptocurrencies in circulation today, despite the fact that you may only be familiar with the most well-known ones, such as Bitcoin and Ethereum.


How Does Cryptocurrency Work?

It is impossible for a central authority to control a cryptocurrency because it is a digital, encrypted, and decentralized medium of exchange. Unlike the US dollar or the Euro, there is no central authority in charge of administering and maintaining the value of a cryptocurrency. Instead, these jobs are delegated to cryptocurrency users around the world. You can buy conventional products and services using cryptocurrency, but most individuals invest in it like they would traditional assets like stocks or precious metals. Cryptocurrencies are a new and complex asset class that might put your money at risk if you don't complete your due diligence.

In his 2008 paper "Bitcoin: A Peer-to-Peer Electronic Cash System, Satoshi Nakamoto first proposed a peer-to-peer electronic cash system." Nakamoto described the idea as "an electronic payment system based on cryptographic proof instead of trust."

Verified and recorded transactions on a blockchain serve as cryptographic proof.


What Is a Blockchain?

Code-based transactions are stored on a blockchain, a decentralized, open ledger. To put it another way, it's like a checkbook that's spread among thousands of computers throughout the world. There are "blocks" in which transactions are recorded, and these blocks are linked to previous transactions in a "chain."

In the words of Buchi Okoro, CEO and co-founder of the African cryptocurrency exchange Quidax, "Imagine a journal where you write down everything you spend money on every day." A full book or set of pages can be referred to as a "blockchain."

A blockchain produces a single transaction record for everyone who uses a cryptocurrency. Adding new transactions to the blockchain simultaneously ensures that all ledger copies are current and correct.

Proof of labor or proof of stake is the two primary strategies for preventing fraud in transactions.


The provenance of Work vs. Evidence of Stake

When transactions are added to the blockchain using proof of work or proof of stake, verifiers receive additional cryptocurrency as a reward. Most cryptocurrencies use either proof of work or proof of stake to verify transactions.


Proof of the Work

According to Xcoins.com social media manager Simon Oxenham, "proof of work" is a method of authenticating blockchain transactions by generating a mathematical puzzle that computers must solve.

To verify a block of transactions before it is added to the blockchain, "miners," or participating computers, each solves a mathematical puzzle. A little amount of cryptocurrency is given to the first machine that does this task correctly.

There may be a large need for computer processing power and electricity in this race to address blockchain concerns. After factoring in the costs of electricity and computing resources, miners may only be able to break even with the bitcoin they earn for verifying transactions.


Stakes are backed up by evidence.

Certain cryptocurrencies use the proof of stake approach to lower the amount of electricity required to validate transactions. To participate in the process, each person must "stake" a certain amount of bitcoin in a shared safe, which restricts how many transactions each person can verify. If you ask Okoro, it's almost bank collateral." The amount of money invested in cryptocurrencies must increase to be picked as a transaction verifier.

According to Anton Altement, the CEO of Osom Finance, "Proof of stake is considerably more efficient than proof of work since it eliminates energy-intensive equation solving, which allows for quicker verification/confirmation periods for transactions."

They'll get paid bitcoin if they're chosen to validate the new batch of transactions, possibly in the amount the block's fees totaled together. Fraudsters are encouraged to verify transactions by forfeiting some of their interest if they are selected.


The Role of Consensus in Crypto

Consensus processes are used to verify both proofs of stake and proof of work. While individual users are used to verify transactions, each verified transaction must be reviewed and approved by most ledger holders.

A hacker, for example, couldn't change the blockchain ledger until they could get at least 51% of the ledgers to reflect their fake version. Fraud is improbable due to the number of resources required.


How Can You Mine Cryptocurrency?

The act of mining entails releasing new bitcoins into circulation in exchange for the confirmation of previous transactions. While the typical person can potentially mine cryptocurrencies, it is increasingly difficult in proof-of-work systems like Bitcoin.

Spencer Montgomery, the founder of Uinta Crypto Consulting, says that as the Bitcoin network grows, it becomes more complicated and necessitates more processing power. "This was once affordable for the typical customer, but not anymore." "Too many individuals have optimized their equipment and technology to be competitive."

As a reminder, the energy required for Proof of Work cryptocurrency mining can be rather high. According to estimates, Bitcoin farms use 0.21 percent of the world's electricity. Electricity consumption in Switzerland is about the same as it was in 2013. It is estimated that most Bitcoin miners spend 60% to 80% of their profits on electricity.

In contrast to mining crypto in a proof of work system, the proof of stake model requires less computing because validators are chosen randomly based on the amount they stake. However, you must already have a cryptocurrency to participate. (If you don't have any crypto, you can't stake anything.)


How Can Cryptocurrency Be Used?

Although bitcoin can be used to make purchases, it is not yet widely accepted as a means of payment. Bitcoin is accepted by a few online businesses, such as Overstock.com, but it is not the norm.

To get past the limitations, you can exchange your cryptocurrency for gift cards. Gift cards for places like Dunkin' Donuts, Target, and Apple can all be purchased with Bitcoin at eGifter. You may be able to use cryptocurrencies loaded onto a debit card to make transactions. You can order the BitPay card, a debit card that converts crypto assets into dollars for purchases, in the United States. Still, there are fees associated with ordering the card and using it for ATM withdrawals.

Crypto can potentially be used to replace stocks and bonds as an investment. "Bitcoin, the most well-known crypto, is a secure, decentralized currency that has evolved into a store of value comparable to gold," says David Zeiler, a cryptocurrency expert and assistant editor for the financial news site Money Morning. "It's even referred to as 'digital gold.'"


How to Make Secure Purchases with Cryptocurrency

Whether or not you can make secure crypto purchases depends on what you're trying to acquire. Bitcoin debit cards like BitPay allow you to spend cryptocurrency at stores that don't directly accept it.

To make a payment to a person or store that accepts cryptocurrencies, you'll need a cryptocurrency wallet. Users can transmit and receive money via a cryptocurrency wallet, a piece of software that connects to the blockchain and interacts with it.

You can send money from your wallet by scanning your recipient's QR code or manually entering their wallet address. You can choose a contact from your phone or enter a phone number to make this process easier. Because transactions must be authenticated through proof of work or stake, they are not instantaneous. According to the cryptocurrency, this might take a few minutes up to a few hours.

On the other hand, the lag time contributes to the security of cryptographic transactions. To prevent a malicious actor from interfering with a transaction, the network will reject any attempts to modify the transaction. According to Zeiler, the network also keeps an eye on spending and prevents it.


How to Invest in Cryptocurrency

Exchanges like Coinbase and Bitfinex and peer-to-peer networks like NEO sell cryptocurrency. The costs charged by some of these exchangers can be outrageous, even for little purchases of cryptocurrencies. There is a set fee of $0.99 to $2.99, depending on the size of your transactions, for example, Coinbase.

You may invest in cryptocurrency through several brokerage sites, such as Robinhood, Webull, and eToro. They allow you to trade some of the most popular cryptocurrencies, such as Bitcoin, Ethereum, and Dogecoin. Still, they may have limitations, such as the inability to transfer cryptocurrency purchases off their platforms.

"It used to be somewhat complex, but it's now fairly simple, even for crypto virgins," Zeiler adds. "Coinbase, a non-technical exchange, caters to their needs. Creating an account and linking it to your bank account is a breeze."

It's important to remember that purchasing individual cryptocurrencies is similar to purchasing individual equities. Rather than purchasing one security, it is preferable to get various products.

Buy individual crypto firm stocks if you want a slice of the crypto market. "A few Bitcoin mining stocks, such Hive Blockchain (HIVE)," Zeiler adds. "Invest in huge firms implementing blockchain technology, such as IBM, Bank of America, and Microsoft, if you want some crypto exposure with less risk."


Should You Put Your Money Into Cryptocurrency?

Investing in cryptocurrencies is a hotly debated topic among experts. In light of the high degree of risk and possibility of big price swings, some financial experts advise against investing in cryptocurrency.

Bitcoin, for example, nearly quadrupled in value in 2020, completing the year at moreover $28,900. BTC's price had more than doubled from the start of the year by April 2021, but all of those gains had been squandered by July. BTC then doubled again, reaching an intraday high of $68,990 on November 10, 2021, before dropping to roughly $46,000 before the end of the year. Cryptocurrencies, as you can see, can be extremely volatile.

Certified financial planner (CFP) Peter Palion in East Norwich, New York feels a currency backed by the government, like the US dollar, is more secure.

With US dollars in your financial reserves, Palion argues, "you can pay your mortgage and pay your electricity bill. Something that decreases by 50% is unfit for anything other than guesswork. "When you look at the last 12 months, Bitcoin resembles my current EKG, while the US dollar index is practically flat."

However, CFP Ian Harvey helps clients who are specifically looking to invest in Bitcoin. According to Harvey, this weight should be substantial enough for clients to feel important without jeopardizing their long-term goals.

If the venture fails, Harvey asks investors how much money they'd be willing to lose before deciding how much to invest. There is no way to know for sure. It may be as high as 10%, he says. In other words, "it all depends on how much they have right now and how much they stand to lose. 
Avatar of Waheed Ewesami

Waheed Ewesami


I'm a professional freelancer writer


List your crypto business

Become the part of biggest crypto directory of the future for free.

Create Free Listing

Promote Your business

Build your presence and get exposure, capture the right size of your desired audience so you won't miss out.

promote your business