Proof-of-Stake (PoS)</strong></a> blockchain network. As part of the PoS consensus mechanism, validators are responsible for verifying new <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-block/">blocks and adding them to the chain to earn <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-block-reward/">rewards.

/n

Most blockchains are designed to be decentralized. This means that there is <strong>no single centralized authority</strong> that the blockchain answers to. Instead, all processes are handled by a network of decentralized <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-node/">nodes scattered across the globe. The nodes contain data that needs to be validated by the network.</p>\n<p>There are numerous validation methods, known as <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-consensus/">consensus mechanisms</strong></a>, throughout the different blockchain systems. However, the two most popular methods are <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-proof-of-work-pow/">Proof-of-Work (PoW)</strong></a> and <strong>Proof-of-Stake (PoS)</strong>. Consensus mechanisms are used to verify incoming transactions to ensure that <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-double-spending/">double-spending doesn&rsquo;t occur, and the data is accurate.</p>\n<p>The validators have one of the key roles in the blockchain network. They confirm the authenticity and accuracy of the transaction records. If the information they analyze is correct, the transaction is deemed completed, and its data is added to the blockchain.</p>\n<h2>Proof-of-Work vs. Proof-of-Stake</h2>\n<p>The Proof-of-Work consensus mechanism is the process of verifying cryptocurrency transactions via <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-mining/">mining. <a href=https://www.bitdegree.org/"https://www.bitdegree.org/crypto/buy-bitcoin-btc/">Bitcoin (BTC)</strong></a>, the first cryptocurrency in the world, utilizes the PoW mechanism to create new blocks. Miners use special computers to solve complicated mathematical problems known as <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-hash/">hashes.

/n

If a miner successfully solves a hash, the <strong>information is forwarded</strong> to the rest of the mining network to confirm it. If the information is deemed correct, a new block is created and added to the blockchain, and the miner <strong>receives cryptocurrency rewards</strong>. Miners essentially play the role of validators on PoW systems.</p>\n<p>However, the PoW mechanism is highly flawed as it requires the miners to possess specific hardware to work optimally. Furthermore, the energy consumption required to solve hashes is really high, leading to increased electricity bills and heat emissions.</p>\n<p>The <strong>Proof-of-Stake consensus algorithm</strong> does not require validators to have specific hardware. Instead, the participants stake their coins in a <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-staking-pool/">shared pool</strong></a>. The validators analyze the blocks based on certain rules set by the blockchain. They receive rewards in the form of transaction or network fees for verified transactions.</p>\n<p>While the Proof-of-Work mechanism is more widely spread, newer blockchains pot for the <strong>safer and more efficient Proof-of-Stake</strong> mechanism. The <a href=https://www.bitdegree.org/"https://www.bitdegree.org/crypto/buy-ethereum-eth/">Ethereum (ETH)</strong></a> blockchain aims to switch from the PoW system to PoS in the near future.</p>","level":"medium","meta_title":"What is Validator? 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Some VR worlds may simulate reality, while others introduce new, unrealistic elements that can only be experienced in the virtual space. Although VR is primarily associated with digital games, it also has other use cases, such as <strong>educational simulations</strong> and training.</p>\n<p>Virtual reality requires a number of tools to be experienced. The main devices required to engage in a VR simulation are the headset and a handheld controller. Globally renowned tech companies such as Sony and HTC offer their own devices to make the VR experience accessible to a wider audience.</p>\n<p>VR also requires special cameras or <strong>sensors</strong> that track the movements of the person engaging with the immersion. The display between both eyes is split. This creates a special 3D effect, while the stereo sound builds on the audiovisual experience.</p>\n<p>Some VR devices are able to connect to a mobile phone and broadcast the immersion using special apps. 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The most popular cryptocurrencies today such as <strong><a href=https://www.bitdegree.org/"https://www.bitdegree.org/crypto/buy-bitcoin-btc/">Bitcoin and <a href=https://www.bitdegree.org/"https://www.bitdegree.org/crypto/buy-ethereum-eth/">Ethereum are considered to be very high in volatility</strong>.</p>\n<p>In most cases, <strong>CBOE Volatility Index (VIX)</strong> is used to measure the asset&rsquo;s level of volatility. However, some cryptocurrencies have their own measures for these fluctuations in price. For example, <strong>the</strong> <strong>Bitcoin Volatility Index (BitVol) or the Ethereum Volatility Index (EthVol)</strong>.</p>\n<h2>Why are Cryptocurrencies So Volatile?</h2>\n<p>There are a few elements that come into play that impact the volatility of the cryptocurrency market:</p>\n<ul>\n<li><strong>Geopolitical situations.</strong> When geopolitical issues appear, they usually have a strong global impact. As a result, geopolitical news can affect the crypto trading volumes;</li>\n<li><strong>Regulatory news.</strong> Reports and announcements regarding regulations have the ability to directly influence the volatility of any cryptocurrency or the entire crypto market overall. An agency that can provide regulatory news is the U.S. <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-securities-and-exchange-commission-sec/">Securities and Exchange Commission (SEC)</strong></a>.</li>\n</ul>\n<p>Additionally, <strong>COVID-19 had a great impact on cryptocurrency markets</strong>. Buying and selling cryptocurrencies, especially Bitcoin, grew in 2020. So did the price of these cryptocurrencies. One of the reasons why the pandemic had such a strong effect on the crypto sector is because it appeared a lot more secure than cash.</p>\n<p>Another factor driving people to specifically BTC instead of other cryptocurrencies is its <strong><a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-hard-cap/">hard cap</a> of 21 million BTC</strong>. Moreover, Bitcoin and other cryptocurrencies could possibly be a safe haven against rising <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-inflation/">inflation.

/n

&nbsp;

","level":"easy","meta_title":"What is Volatility? Definition & Meaning | Crypto Wiki","meta_description":"Volatility meaning: Volatility - describes a type of currency that frequently experiences significant price movements.","meta_keywords":null,"language":"en","created_at":"2022-04-05T13:34:49.000000Z","updated_at":"2023-03-30T08:15:49.000000Z","preview_url":"https://www.bitdegree.org/crypto/learn/crypto-terms/what-is-volatility"},"currentChapter":"V","currentSection":"what-is-validator","chapterTitle":"V","readingLevel":"medium"},"url":"/crypto/learn/crypto-terms/what-is-validator","version":"cdd198d50cbe5c9c21c9329d7c096ffc"}" class="container-fluid d-flex crypto-book p-0">
Crypto Terms: Letter V

What is Validator?

Validator MEANING:
Validator - a member of a Proof-of-Stake (PoS) blockchain network, responsible for validating new blocks.
Medium
2 minutes

Let's find out Validator meaning, definition in crypto, what is Validator, and all other detailed facts.

A validator is a participant of a Proof-of-Stake (PoS) blockchain network. As part of the PoS consensus mechanism, validators are responsible for verifying new blocks and adding them to the chain to earn rewards.

Most blockchains are designed to be decentralized. This means that there is no single centralized authority that the blockchain answers to. Instead, all processes are handled by a network of decentralized nodes scattered across the globe. The nodes contain data that needs to be validated by the network.

There are numerous validation methods, known as consensus mechanisms, throughout the different blockchain systems. However, the two most popular methods are Proof-of-Work (PoW) and Proof-of-Stake (PoS). Consensus mechanisms are used to verify incoming transactions to ensure that double-spending doesn’t occur, and the data is accurate.

The validators have one of the key roles in the blockchain network. They confirm the authenticity and accuracy of the transaction records. If the information they analyze is correct, the transaction is deemed completed, and its data is added to the blockchain.

Proof-of-Work vs. Proof-of-Stake

The Proof-of-Work consensus mechanism is the process of verifying cryptocurrency transactions via mining. Bitcoin (BTC), the first cryptocurrency in the world, utilizes the PoW mechanism to create new blocks. Miners use special computers to solve complicated mathematical problems known as hashes.

If a miner successfully solves a hash, the information is forwarded to the rest of the mining network to confirm it. If the information is deemed correct, a new block is created and added to the blockchain, and the miner receives cryptocurrency rewards. Miners essentially play the role of validators on PoW systems.

However, the PoW mechanism is highly flawed as it requires the miners to possess specific hardware to work optimally. Furthermore, the energy consumption required to solve hashes is really high, leading to increased electricity bills and heat emissions.

The Proof-of-Stake consensus algorithm does not require validators to have specific hardware. Instead, the participants stake their coins in a shared pool. The validators analyze the blocks based on certain rules set by the blockchain. They receive rewards in the form of transaction or network fees for verified transactions.

While the Proof-of-Work mechanism is more widely spread, newer blockchains pot for the safer and more efficient Proof-of-Stake mechanism. The Ethereum (ETH) blockchain aims to switch from the PoW system to PoS in the near future.