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What Is Cryptocurrency?

What Is Cryptocurrency and How Does It Work?
A cryptocurrency is a digital or virtual currency that is protected by encryption, making counterfeiting and double-spending practically impossible.
Many cryptocurrencies are built on blockchain technology, which is a distributed ledger enforced by a distributed network of computers.
Cryptocurrencies are distinguished by the fact that they are not issued by any central authority, making them potentially impervious to government intervention or manipulation.

What Is a Blockchain?

A blockchain is a decentralized, open ledger that stores transactions in code. In practice, it’s similar to a checkbook that’s spread across thousands of computers all over the world. Transactions are stored in “blocks,” which are then linked to previous bitcoin transactions in a “chain.”

“Imagine a book where you write down everything you spend money on every day,” says Buchi Okoro, CEO and co-founder of Quidax, an African cryptocurrency exchange. “Each page is a block, and the entire book, or collection of pages, is a blockchain.”

Everyone who uses a cryptocurrency has their own copy of this book on a blockchain, which creates a unified transaction record. Each new transaction is logged by software as it occurs, and every copy of the blockchain is updated with the new information at the same time, ensuring that all records are identical and correct.

Each transaction is validated using one of two basic validation mechanisms to prevent fraud: proof of labor or proof of stake.

Proof of Work vs Proof of Stake
Proof of Work
“Proof of work” is a way of confirming transactions on a blockchain in which an algorithm generates a mathematical puzzle for computers to solve, according to Simon Oxenham, social media manager at

Each participating computer, known as a “miner,” solves a mathematical challenge that aids in the verification of a set of transactions known as a block, which is subsequently added to the blockchain leger.
For its efforts, the first computer to do so effectively gets rewarded with a modest sum of cryptocurrency.
This race to solve blockchain problems may necessitate a significant quantity of computer processing power and electricity. In practice, this implies that after factoring in the expenses of power and computer resources, miners may barely break even with the crypto they receive for confirming transactions.

Proof of Stake
Some cryptocurrencies utilize a proof of stake verification approach to decrease the amount of electricity required to review transactions.
The amount of cryptocurrency each individual is willing to “stake,” or temporarily lock up in a common safe, for the chance to participate in the process, limits the number of transactions each person can verify.
“It’s almost like collateral,” Okoro explains. Each person who invests in cryptocurrency has the potential to verify transactions, but the likelihood of being chosen increases as the amount invested grows.

“Proof of stake is far more efficient than proof of work since it eliminates energy-intensive equation solving, allowing for shorter verification/confirmation times for transactions,” says Anton Altement, CEO of Osom Finance.

If a stake owner (also known as a validator) is chosen to validate a fresh batch of transactions, they will be paid in bitcoin, possibly in the amount of the block’s aggregate transaction fees.
To deter fraud, you forfeit a portion of your stake if you are chosen and verify invalid transactions.

Select a cryptocurrency

There are numerous cryptocurrency investment possibilities available, but none of them are likely to be suitable for everyone. Before you buy, consider what you want to get out of this investment. Do you expect it to appreciate in value? Do you want to use cryptocurrencies to carry out transactions?
Do you want to use the underlying technology to create decentralized apps? These could assist you in making your decision.

Bitcoin is the first and most valuable cryptocurrency.

Ethereum is commonly used to carry out financial transactions more complex than those supported by Bitcoin.

Polygon (MATIC) is an Ethereum token that is used to power the Polygon Network, an Ethereum scaling solution. Polygon uses Layer 2 sidechains,
which are blockchains that operate alongside the Ethereum main chain, to allow faster and cheaper transactions on Ethereum.

Cardano is a competitor to Ethereum led by one of its co-founders.

Fantom is a decentralized, permissionless, open-source smart contract platform for decentralized apps (dApps) and digital assets, and it’s one of a number of blockchain networks designed to compete with Ethereum.

Avalanche is a smart contract-capable blockchain platform. Avalanche’s goal is to provide a scalable blockchain solution that maintains decentralization
and security while focusing on low costs, quick transaction speeds, and environmental friendliness.

Fantom is another competitor to Ethereum that emphasizes speed and cost-effectiveness.

Dogecoin began as a joke but has grown to be among the most valuable cryptocurrencies.

Stablecoins are a class of cryptocurrencies whose values are designed to stay stable relative to real-world assets such as the dollar.

What is NFTs ?

NFT stands for “non-fungible token.” At a basic level, an NFT is a digital asset that links ownership to unique physical or digital items, such as works of art, real estate, music, or videos. NFTs can be considered modern-day collectibles Vote for your favorite NFT

Best cryptocurrencies by market capitalization

According to, a market research website, more than 15,500 different cryptocurrencies are traded publicly. Cryptocurrencies are still on the rise. On Feb. 18, 2022, the total worth of all cryptocurrencies was over $1.8 trillion, down from an all-time high of almost $2.9 trillion late in 2021.

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