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Glossary
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- Censorship Resistance A blockchain network achieves censorship resistance through its capability to process both transactions and data without any control from a central governing body. The cryptocurrency systems enable all transactions to proceed without any particular government or business or intermediary entities stopping or reversing their inclusion into the blockchain. Decentralization serves as the fundamental basis for this particular functionality. The Bitcoin and Ethereum networks validate their transactions through the operation of multiple independent nodes which follow common validation protocols. The distributed control system makes it impossible for any single organization to obstruct a transaction which complies with established protocols. A network of users possesses the ability to add a transaction to a block even when some members choose not to process that transaction. Censorship resistance stands as a fundamental principle which defines cryptocurrency systems. The supporters of this system contend that it enables people to move their assets freely without needing banks or payment processors, which might place restrictions on their transactions. This situation becomes highly important for people who live in areas where they cannot access regular banking services or face government limitations on their financial activities. The process of censorship resistance leads to total control because miners and validators have the power to select which transactions they will handle, while regulatory authorities can force centralized services like exchanges to stop certain operations. The infrastructure providers whom you mentioned, including wallet services and internet hosts, will follow judicial requirements that exist in specific areas. The process of crypto reporting uses censorship resistance as a central theme which examines regulatory matters and explores sanctions and network governance issues. The explanation shows why people see blockchain systems as different entities compared to traditional financial networks. Through this concept understanding readers will learn how distributed consensus systems work to provide open access while they also become aware of existing boundaries that restrict their operations inactual situations.
- Centralized Network A centralized network is basically any blockchain, platform, or service where a single entity or a very small group holds power over how the whole system runs. It is the opposite of the “decentralized dream” that Bitcoin and Ethereum were built on. With a centralized network, one company or organization usually controls the nodes, validates transactions, upgrades the protocol, freezes accounts, or even reverses transactions if they want to. Users don’t really get to vote with their nodes or their tokens. Instead, they just have to trust the people in charge. If the company changes their mind, your funds can be locked, your access cut off, or the rules quietly changed overnight. You deposit crypto, they hold the private keys, and you’re trading on their internal ledger. Your balance is just an IOU until you withdraw. Classic examples of centralized exchanges are Binance, Coinbase, Kraken, Bybit, OKX, and, of course, most custodial wallets. Another example would be centralized stablecoins like USDT and early versions of USDC, where one company (Tether or Circle) decides how many tokens get minted, who gets blacklisted, and what reserves actually back the coin. Even some blockchains that look decentralized on the surface can lean heavily centralized. BNB Chain, Solana (especially in its early years), and many layer-2 rollups rely on a small set of validators, a single sequencer, or a multisig that a handful of insiders control. If that core group gets compromised, goes offline, or decides to censor, the network unfortunately suffers. The trade-off is speed, low fees, a slick user experience, and easy customer support. So while centralized networks power most of everyday crypto trading and stablecoin usage today, they sit at the complete opposite end of the spectrum from truly trustless, censorship-resistant systems.
- CEX A centralized exchange which people call a CEX operates as a cryptocurrency trading platform that a business or organization runs to control both user accounts and their monetary transactions and the protection of their digital assets. A CEX functions as a trading intermediary that supervises all trading activities, while decentralized exchanges allow users to trade directly through their smart contract systems. Through the centralized exchange system, users need to establish their accounts and transfer their money before they can use the platform controls to execute buying and selling operations. The exchange system uses an internal order book to find matches between buyers and sellers. The system maintains users' digital assets because it possesses the private keys which protect their stored funds. The system supports rapid trade execution while providing better liquidity than decentralized systems, which operate as their competing model. CEX platforms provide more services than just their basic spot trading operations. They provide services such as margin trading and derivatives and staking and lending and fiat on and off ramps and customer support. Centralized exchanges must adhere to regulatory requirements because they operate as licensed businesses across multiple jurisdictions, which mandate Know Your Customer and Anti-Money Laundering compliance. The primary benefit of using a CEX platform is its user-friendly nature which enables customers to access their services without difficulty. These platforms are generally easier for beginners to use and they provide strong liquidity for major trading pairs which include Bitcoin and Ethereum. Centralized custody creates counterparty risk because it requires users to trust the exchange with their assets while the exchange needs to protect assets and act with integrity. The exchange platform risk, which was demonstrated by past exchange failures and hacks, remains as a current threat to users. The CEX term appears in crypto reporting when researchers study market liquidity and regulatory activities and major trading events. The digital asset ecosystem includes custodial platforms and decentralized trading systems, which develop from the understanding of centralized exchanges.
- Circulating Supply Circulating supply is the best estimate of how many coins or tokens are currently out there in the market—publicly available, held by investors, and actively tradable on exchanges. It functions similarly to the cash present in everyone's wallets and pockets, ready for immediate spending or trading. It is not the total money that exists (as some of it might be locked away in company safes, vesting schedules, or yet to be created/mined). Different cryptocurrencies have wildly different circulating supplies. For example, Bitcoin has roughly 20 million coins that can be traded today, but the total cap is 21 million. What accounts for the missing 1 million coins? They haven't been mined yet. The circulating supply plays a huge role in determining the price of a cryptocurrency. When there aren't many coins available, and everyone wants them, the price shoots up. But when tons of coins are available, prices tend to drop. Therefore, before buying any cryptocurrency, taking a look at the circulating supply is important. A dollar coin with a billion units out there tells you something completely different than a dollar coin with only a million. A dollar-pegged stablecoin with a billion units circulating tells you something completely different than one with only a million: the former is far more liquid and widely distributed, while the latter might behave more like a scarce asset. It also plays a role in determining the market capitalization (price × circulating supply). That's why market cap uses this number instead of the total or max supply: it reflects what's actually influencing supply and demand in the open market right now.
- Coin A coin is a digital currency that runs on its blockchain. The rule is straightforward—if a crypto asset has its own blockchain, it is a coin. If it doesn't, it falls into a different category, usually called a token. A blockchain is a shared digital record book that no single person, company, or bank owns or controls. Copies of it sit on thousands of computers worldwide, making it impossible for anyone to manipulate. Bitcoin has its blockchain, so it's a coin. Ether lives on the Ethereum blockchain, which Ethereum built and maintains itself, so it's a coin as well. The two are tied together permanently—a coin without its blockchain is nothing. A useful way to picture the situation is by considering countries and their currencies. America has the dollar. Japan has the yen. Each country issues money that belongs to its system. Crypto coins work the same way—each blockchain has one native coin that belongs to it alone. Coins do more than exist; they serve specific purposes. You can send them to anyone, anywhere, without a bank handling the transfer. Many people hold them as a way to store value over time—Bitcoin, for instance, has a hard cap of 21 million coins baked into its code, so no more will ever be made. Scarcity, as with most things, tends to matter. Some coins also work as fuel—ETH is spent every time someone does anything on the Ethereum network, whether that's sending money or running an application. Coins come into existence through two main processes. Mining is where computers do heavy computational work and receive newly created coins as payment. Staking is where people lock up coins they already own to help keep the network running and earn more coins in return. What often surprises people is that coins are also the entry point to the broader crypto world. To buy a token, use a crypto application, or participate in anything blockchain-related, you almost always need coins first. Coins serve as a means of payment, a medium of exchange, and the ultimate benchmark for pricing the entire system. In this sense, coins aren't just one part of crypto—they are the foundation everything else is built on top of.
- Cold Wallet A cold wallet or storage is a secure way to keep your cryptocurrency. What this essentially means is that your crypto wallet is completely disconnected from the internet. Since the wallet is not online, it eliminates the risk of being vulnerable to hackers and malware. A cold wallet instead keeps your private keys in a offline environment. One can use a cold wallet like a high-security savings account. When you want to receive crypto, you simply send it to the wallet's address. When you want to send crypto, you must physically connect the wallet to a computer or phone, sign the transaction offline, and then broadcast that signature to the network. This "air-gap" ensures your actual keys never touch the internet. Now, there can be different types of cold wallets as well. Take for example, a hardware cold wallet like Ledger Nano X, or Trezor Safe 5. These offer top-tier security and are easy to recover if lost via a "seed phrase." But these wallets cost anywhere between $50–$200, so they are less convenient for quick trades. Then there are card wallets like Tangem. These are easily portable, as it can fit in a phone or wallet. It doesn’t require cables or batteries to get started. The most simplest cold wallet would be a paper wallet with simple QR codes printed on it. However, this can be fragile, because if the paper burns or fades, the funds are gone.
- Collateral Spend any decent amount of time in crypto trading, and the word collateral will surface sooner or later. The concept is not new. It functions much the same way as in everyday finance: an asset is put forward as security when taking out a loan or stepping into a leveraged position. Consider a straightforward example. A trader has Bitcoin and wants to scale up trading activity, but does not have the extra funds to do so. Rather than selling holdings, he locks up that BTC on a lending platform or exchange as collateral. The lender keeps it as a safety net—if repayment falls through, they can sell off the pledged asset to recover what is owed. The logic is nothing unfamiliar, but crypto brings a sharper edge to it because prices can turn against a position faster than most people anticipate. Almost all crypto platforms establish a minimum collateral ratio that they must maintain consistently. Once the value of the pledged asset slides too far from the minimum, a margin call comes into effect—either fresh collateral gets added, or the position gets liquidated automatically. The platform does not wait. In decentralized finance, collateral is not just a feature—it is one of the main foundations. Platforms like Aave or Compound skip credit checks entirely and cut out human involvement from the process. Smart contracts run the show. Assets go in, get borrowed against, and the protocol ensures that every party follows the rules. DeFi also tends to require over-collateralization—putting up more than the borrowed amount, because the system has no other buffer against sudden market moves. Indeed, collateral sits at the heart of how borrowing and leveraged trading work in crypto. Understanding it isn’t optional, but the starting point.
- Composability Composability in crypto refers to the ability of different blockchain apps and protocols to work together. It acts like building blocks, often referred to as ‘Money Legos’ in decentralized finance (DeFi). More importantly, these building blocks don’t need permission from anyone else. Developers and users can combine digital parts to create something more useful. They don't need special permission to do this. Composability lets smart contracts on a blockchain like Ethereum work together to create public building blocks that anyone can use. This is possible because most crypto protocols are open-source and standardized. For example, Ethereum’s ERC-20 token standard means any token built to that standard can be used by other apps automatically. Therefore, the output of one app can serve as the input for another, enabling developers to create new financial tools more quickly and affordably. A suitable example would be when one deposits a stablecoin like USDC into Aave to earn interest and get "aUSDC" tokens in return. Those aUSDC tokens can be added as liquidity on Uniswap, a decentralized exchange, to earn trading fees. These can also be staked in a yield farm on another protocol for extra rewards. And just like that, three different apps can be seen working together automatically in a single transaction. But, composability comes with its own set of risks, too. It creates interdependency risks. For instance, the failure or hacking of one protocol can impact others that rely on it. All in all, it makes crypto more flexible than traditional finance.
- Consensus In the world of crypto, "consensus" is quite literally when a network of computers (nodes) agree on what is true in the blockchain. They do not depend on banks or governments to verify; instead, the nodes decide to agree on which transactions are real and give their approval on the timeline of when they occured. A consensus mechanism is a built-in set of rules that ensures every node reaches the same conclusion about which transactions to add to that ledger. The chain updates, and then the block is added if most nodes agree. But, if there are disagreements, the network goes with the longest or most common valid chain. This happens automatically via code, making it tamper-resistant. There are different types of consensus mechanisms. One is Proof of Work (PoW). Here, nodes are 'mined' by solving difficult math puzzles using computing power. The first to solve the puzzle adds the block and gets rewarded for it. It's energy-intensive but secure. Second is Proof of Stake (PoS), in this case, nodes stake their own crypto as collateral. The size of the stake and the randomness of the choice determine who gets to be a validator. This type of verification saves energy, but there is a chance of losing stake in case of misbehavior. In Bitcoin, miners race to solve puzzles and agree on the history of transactions. The network chooses the chain with more work behind it if two miners find blocks at the same time. Ethereum, on the other hand, switched to PoS in 2022. Ethereum holders stake ETH to make it faster and better for the environment. Consensus is crypto's backbone. It enables trust without intermediaries, cutting costs and borders in finance. It turns crypto into reliable, peer-to-peer money. Without it, blockchains would collapse, but as crypto grows, evolving mechanisms like these keep it innovative and secure.
- Correction A correction is a market term which describes a temporary price drop that follows a period of strong asset price increases. The term correction in cryptocurrency markets describes price decreases which reach 10 percent or greater from recent peak values although no specific standard exists. Market cycles include corrections as regular events which investors consider to occur without starting a larger market decline. Cryptocurrencies experience corrections after their prices increase rapidly through positive market sentiment and speculative trading and important news announcements. Investors begin taking profits when prices increase rapidly while other investors show more caution about buying at increased price points. The result of this behavioral shift leads to selling pressure which causes prices to decrease. The market experiences a slowdown while people show less intense excitement. A correction typically occurs within an active trend which requires its completion to establish pattern termination. An upward price movement through the market creates a situation where traders experience temporary price corrections which do not stop market progress. The distinction between correction and crash exists because analysts use this method to identify market patterns. A crash occurs through abrupt market decline which results from panic and system faults and unanticipated adverse developments.
- Cross-Chain Cross-chain is the ability of two or more independent blockchains to communicate and share data or value with each other. Now imagine if blockchains were independent islands. Each island has its own currency and rules. So you can’t use Bitcoin on the Ethereum island because they don't speak the same language. Here comes cross-chain technology, which acts as the bridge or ferry system connecting these islands. Since you can't literally send a coin from one chain to another, most cross-chain systems use a lock and mint mechanism. So when you send your original crypto, like Bitcoin, to a digital vault on its home blockchain, it is safely locked up. This means that the Bitcoin is held securely and cannot be used until it is released from the vault. A bridge protocol then sees that your Bitcoin is locked and creates an identical "wrapped" version (e.g., Wrapped Bitcoin or WBTC) on a different blockchain, like Ethereum. When you want to go back, the wrapped version is destroyed, and your original Bitcoin is released from the vault. Tools like Across, Stargate, and Wormhole are popular bridge services used to move funds between networks like Ethereum, Solana, and various Layer 2s. Then there are wrapped tokens like WBTC, which allow you to use the value of your Bitcoin inside Ethereum’s financial apps. And finally there are interoperability networks like Cosmos and Polkadot that are built specifically to be "Blockchains of Blockchains," where every sub-chain is cross-chain compatible by design.
- Cryptocurrency A cryptocurrency is a digital or virtual money variant that uses encryption to ensure the confidentiality of transactions and limit the generation of new units. Cryptocurrencies are not like government-issued fiat currencies, as they are entirely reliant on decentralized blockchain networks rather than power and control centralized by a single entity. This system takes away the banking system and intermediaries, thus allowing people to directly transact with each other. A blockchain is used to keep track of every cryptocurrency transaction, and it works in the same way as a public ledger where anyone is allowed to take a peek at it. As a result, all fund movement is transparent, but at the same time, it is also guaranteed that the funds cannot be changed or erased once they are confirmed due to the immutability of the system. Bitcoin is the most popular cryptocurrency. It was launched in 2009 and claimed to be the first-ever decentralized digital currency. The digital currency realm has since expanded to thousands of other coins, including Ethereum, which has innovated with non-cash smart contracts. There are many reasons why people prefer using cryptocurrencies including online payments, sending money internationally, trading, participating in decentralized finance (DeFi), and even acquiring digital art called NFTs, among others. There might be times when the prices are extremely unstable, but the innovation of cryptocurrency technology keeps going on and has started the process of changing the ways of money transfer, ownership, and most of all the financial systems in the digital world.
- Custodial Think of custodial as crypto's version of a traditional bank. In the world of finance, a custodian is simply a third party that holds onto your assets for you. When you use a custodial service, you don’t actually hold the keys to your digital vault. Instead, you’re trusting a company to keep your funds safe and give them to you when you ask for them. In the early days of Bitcoin, you had to be your bank. This meant managing complex private keys, a long strings of random characters, on your own hardware. If you lose that key, your money will be gone forever. As crypto went mainstream, companies like Coinbase and Binance realized that most people didn’t want that much responsibility. They created custodial accounts where they manage the technical security, and you just log in with a username and password. In crypto, "Your keys, your crypto; not your keys, not your crypto." So if you have a custodial wallet, the exchange holds the private keys. You have an IOU. Whereas, in a non-custodial wallet, you hold the keys and have total control of everything that happens. Using a custodial service is technically a step back toward the old centralized system. However, it’s used because it offers a safety net for beginners.
- CZ Changpeng Zhao, or CZ, is the founder and former CEO of the exchange Binance. CZ is a prominent figure in the crypto ecosystem, known both for the Binance empire he launched in 2017, making it the global leader in the sector in just 165 days, and for the numerous memes surrounding him. Among them are: "Four" (4): This is his signature rallying cry. He is often seen in photos flashing the number 4 with his hand. This refers to a 2023 tweet where he listed his priorities; the fourth point was: "Ignore FUD, fake news, attacks, etc." "Funds are SAFU": This phrase was born from a typo of the word "safe" during unplanned maintenance in 2018. Following parodies, the term stuck and today, "SAFU" is even a real emergency insurance fund (the Secure Asset Fund for Users) designed to protect Binance customers. "Broccoli": This is the name of the dog CZ adopted. Despite an estimated fortune of over $70 billion, CZ cultivates a very approachable image, even going so far as to make pizzas for Binance users during a marketing campaign for Bitcoin Pizza Day. But his journey has also been full of ups and downs, like his fight with Sam Bankman-Fried during the FTX collapse and his high-profile legal battles. On the 21st of November 2023, CZ resigned as CEO after admitting to breaking anti-money laundering laws and agreeing that Binance would pay $4.3 billion to the U.S. Department of Justice. After serving a brief prison sentence in 2024, CZ is now fully dedicated to "Giggle Academy." a gamified educational platform designed to teach underprivileged children the skills needed to master the world of tomorrow.