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Glossary
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- ICO An Initial Coin Offering (ICO) is a fundraising strategy that allows cryptocurrency projects to raise money by selling newly created tokens to the first ones who support them. It is quite like an initial public offering (IPO) in traditional finance, but instead of shares, crypto tokens are given to investors. These tokens may later be used within the project's ecosystem or traded on exchanges once they are listed. A white paper is usually published by a project during an ICO, which contains information about the project’s idea, technology, token supply, and how the raised funds will be used. Investors send established cryptocurrencies like Bitcoin or Ethereum to the project and receive the new tokens in return. ICOs gained immense popularity from 2016 to 2018 and thus helped many blockchain-based startups to raise capital easily. Nevertheless, ICOs were still very risky. Many of them were not properly regulated, had no or very little oversight, and made impossible promises. Some projects were unable to deliver, while others were just plain scams. Consequently, the regulators in many of the countries decided to intervene and either restrict or completely ban ICOs. ICOs have had a significant impact on the cryptocurrency industry, even though they are on the decline. They created a new path for startups to raise funds worldwide and demonstrated the entire landscape of the crypto market: both the potential, and the dangers of open permissionless fundraising in the digital asset space.
- IDO An Initial DEX Offering (IDO) is a method for a blockchain project to offer its token to the public market through a decentralized exchange rather than through a centralized one. By doing so, the token is immediately available for trading on a DEX, allowing users to buy and sell it as soon as the exchange provides liquidity. There is no central entity that conducts its sale or controls its participants through approval. The majority of IDOs function by the establishment of a liquidity pool that features the new token and one already known and accepted asset, such as ETH or a stablecoin. After the pool goes active, anyone holding a wallet that supports the transaction can participate by exchanging tokens through the smart contracts of the exchange. The whole process is performed on-chain, meaning that the transactions can be scrutinized and confirmed. IDOs became trendy due to their accessibility and speed. It’s just that projects won’t have to wait for the exchange to give them permission and users will not have to go through prolonged procedures to be in the loop; all they need to do is register an account and they are good to go. But this visibility has its downside too. A lot of the IDOs make their debut with scant information and then the project dies after a very short time of being online. To the investors, IDOs represent an opportunity to be among the first consumers and also a high-risk, high-reward scenario their potential losses are also greater. In simple terms, an IDO is a decentralized token launch where from the very first moment the trading opens on a DEX, the intermediaries are not controlling anything.
- Immutable The term immutable describes the nature of objects which remain unchanged after their initial creation. The blockchain and cryptocurrency systems use immutability to protect their recorded data because users cannot change or erase their confirmed blockchain information. Cryptographic hashing together with distributed consensus establishes this system. A blockchain block exists as a self-contained unit that includes a link to its preceding block. The block hash will change if anyone tries to alter a previous transaction which will result in the blockchain being disrupted. An attacker needs to control most of the network power because they must reprocess all subsequent blocks after redoing the block computations to change the record which becomes impossible with large networks. The core strengths of blockchain systems include their unchangeable data protection system which provides permanent and transparent transaction documentation. The system produces permanent transaction records which remain accessible for public verification. The feature enables multiple use cases which include financial transfers and supply chain tracking and digital ownership because these applications need reliable data integrity. The practice of making data unchangeable brings about operational difficulties. The blockchain system does not permit edits for incorrect information which has been inputted into it. The process of reversing transactions becomes difficult and disputed when there are security breaches or critical system failures because it needs simultaneous modifications to the network protocols. The term immutable appears in crypto reporting because it describes blockchain records as reliable permanent existence. The system shows how decentralized systems maintain resistance against data tampering while providing digital infrastructure security through its dual-security and flexibility capabilities.
- Impermanent Loss If you've ever considered generating additional income by supplying liquidity to a cryptocurrency exchange, you must be aware of impermanent loss. This happens when the price of the tokens you deposited into a pool changes compared to when you first put them in. The bigger the price swing, the more you lose compared to if you had just held those tokens in your own wallet. It’s called "impermanent" because if the prices return to exactly where they were when you deposited them, the loss disappears. But if you withdraw your money, while the prices are still down or up then that loss becomes very permanent. Imagine you join a liquidity pool for a new pair: Token A and Cash Coin. To keep things balanced, you deposit 10 units of Token A (worth $100) and $100 in Cash Coin. Your total investment is $200. The Market Moves: Suddenly, Token A becomes super popular and its price doubles on other exchanges. The Arbitrage: Savvy traders will jump into your pool to buy your "cheap" Token A until the price matches the outside market. The Result: When you go to withdraw your funds, you’ll find you have less Token A and more Cash Coin than you started with. Even though your total value might be, say, $250, you realize that if you had just kept your 10 tokens and $100 in your wallet, you’d actually have $300. That $50 difference is your impermanent loss. You basically missed out on extra gains because the pool's math forced you to sell your "winning" asset while it was going up. It’s the price you pay for being a "market maker," and you usually hope the trading fees you earn will be high enough to cover that gap.
- Inflation Inflation is the general increase in prices over time, which means that money loses some of its buying power. When inflation happens, the same amount of money buys fewer goods and services than before. People experience it when everyday items like food, gas, and rent cost more than they did before — your money buys less than it used to. If a basket of groceries costs $50 this year and $55 next year, that’s inflation. The amount of money (or income) does not change, but what it can buy does, thanks to inflation. Inflation creeps in when prices for everyday things start increasing steadily. It happens for a few big reasons: businesses pay more for materials, energy, or wages and pass those costs straight to end users. Or everyone suddenly wants to buy more stuff than shops can stock, so sellers hike prices. Sometimes governments print or pump extra money into the economy, making each dollar worth less. Supply shortages—like bad harvests or global disruptions—also lead to inflation, as they affect the supply. For common people, inflation means spending more on groceries, rent, and other day-to-day needs. Savings sitting in the bank shrink in real value if interest does not increase. A little inflation is normal, but too much hits hard. Governments measure inflation using the Consumer Price Index (CPI). They track how much more this basket costs year after year and report the percentage change as the inflation rate every year. As of late 2025, the US inflation rate hovers around 3% annually. Mild inflation (about 2%) keeps the economy growing by encouraging spending. High inflation hurts savings, makes budgeting hard, and pushes people to spend quickly before prices climb more.
- IoT The Internet of Things (IoT) denotes a connection of humanless digital objects, which have internet access and can communicate, process, and share data. The aforementioned objects are not limited to electronic gadgets alone but are inclusive of wearable devices, smart home and medical appliances, vehicles, industrial machines, etc. The communication with software systems and inter-device communication is what makes them "smart." The use of sensors by IoT devices for data collection from the environment is a common practice. They collect various types of data like temperature, location, movement, or even user habits, and send the collected information through the Internet. Thus, it becomes possible for the systems to monitor the settings in real-time and also to automatically respond. A good example is the smart thermometer that can change the room temperature according to people’s daily activities or a factory sensor that can notify the engineers before a machine malfunctions. IoT is a huge presence in industries today. The first one that comes to mind is healthcare, which benefits from remote patient monitoring. Another application is in urban areas, where IoT is used for smart traffic systems and energy management. Moreover, IoT is also incorporated into the daily lives of individuals, where it provides automation, security, and convenience. IoT brings a greater degree of efficiency and better-quality decision-making, while raising privacy and security issues due to the fact that attackers can penetrate connected devices and incorporate them into their network. In a nutshell, IoT integrates and interlinks the physical world with the digital, providing the possibility of data, communication, and cooperation among intelligent everyday objects.
- IPFS IPFS stands for InterPlanetary File System. The term may sound like something from a sci-fi book, but it's really a more decentralized way to store and share data on the internet. To get a better idea of IPFS, consider the regular web to be a big library where companies like Google and Amazon keep books and files, like photos, videos, and documents, on their central servers. If those servers fail or get locked, you can't access the books. This is called location-based addressing. To make it even easier to understand, each piece of data in IPFS has its own unique fingerprint, which is called a hash. IPFS finds anyone on the network who has a copy of that unique fingerprint and gets it for you when demanded. So if you want a specific photo, IPFS finds anyone on the network who has a copy of that unique fingerprint and retrieves it from them. This is called content-based addressing. IPFS is like a hard drive for decentralized apps on a blockchain. Blockchains like Ethereum are good at securely recording transactions, but they have trouble storing big files because they tend to get bigger and slow down the network. IPFS does the hard work to stop that from happening. It's cost-effective, as peers share bandwidth. And it's tamper-proof, which means that changing a file changes its address, and so fakes can be spotted easily. For example, decentralized apps like social platforms or Web3 projects use IPFS to store user posts; this ensures that they're always available. Filecoin is a crypto project that pays people to store files on IPFS, it's like an Airbnb for data storage. Overall, IPFS makes crypto more practical, turning the entire world’s spare storage into one giant, permanent library that no one person owns.
- IPO An IPO, or Initial Public Offering, is a method through which a private firm lists its shares on the stock market for the very first time. The company during an IPO provides its stocks to the general public on a stock exchange, thus letting regular investors acquire ownership of the enterprise. It is a major turning point of a corporation’s development, as the company moves from private control to public accountability. Most of the time a company decides to go public to raise money from investors. The funds generated through an IPO can be applied to setting up new facilities, making new goods, or paying off existing loans. Before going public, the company has to comply with very stringent rules set out by the regulators, this entails making financial disclosures, undergoing audits, and obtaining authorization from the market authority. Banks for investments usually take care of the entire process, determining the stock price, and promoting the sale to the investors. For the investors, an IPO is a way to get a slice of a company at an early stage of its public life. Nevertheless, IPOs are also fraught with danger. The price of shares can fluctuate widely in the first few days of trading, and not every company that goes public will survive and thrive years later. To put it simply, an IPO is the way a private company allows the public investors to come in, by trading ownership shares on a stock exchange with full regulatory scrutiny.
- IYKYK IYKYK is a popular acronym that stands for "If You Know, You Know". When used in chats, it refers to someone having insider knowledge, insights, or experiences about a particular matter. People in the crypto community use it to make others feel like they belong, making them part of an inner circle that has exclusive knowledge. They used it to hint at trends, opportunities, or memes without explicit explanation, subtly leveraging their knowledge within the group. The term is more commonly used in internet lingo, and its origins could be traced back to early 2016, when it was used to reference niche or ironic shared experiences. It got popular in the crypto circles around 2021, during the peak of the NFT boom and meme coin craze. Incidentally, its usage became more frequent during the Dogecoin pump caused by Elon Musk's tweets and the rise of exclusive NFT drops, where communities used IYKYK to create hype and exclusivity. On social media platforms like X, Discord, and Telegram, IYKYK appears in posts teasing potential value or inside jokes, often in NFT circles or trading chats, to imply, "This is for the real ones." So, if you see a post that reads, "Just aped into this gem at launch... IYKYK," it would imply that the person is hinting at a potentially lucrative but obscure token without revealing details, encouraging FOMO. Or if you see "Bitcoin to $100K? IYKYK." The phrase could have a sarcastic connotation, poking fun at optimists who believed their predictions would come true.