Introduction
Welcome to the world of cryptocurrencies, one of the most exciting and dynamic financial markets today. You may have already heard of Bitcoin or seen news about people who made huge gains by investing in digital currencies, and now you want to know more. This handbook will help you understand what cryptocurrencies really are, how to use them, how to store them safely, and how to stay compliant with laws and regulations.
Cryptocurrencies are a revolutionary concept that has changed the way people think about money, transactions and financial decentralization. They are the result of technological innovation, including blockchain technology, which made it possible to create digital currencies that are secure, transparent and decentralized.
On top of that, we are entering the age of the metaverse, a virtual universe where digital reality is increasingly becoming reality. Cryptocurrencies play a key role in the metaverse, enabling digital commerce, business and the exchange of value within this virtual world. The metaverse opens up new opportunities and challenges for using cryptocurrencies in entirely new ways.
This handbook is intended for beginners, but those already familiar with the subject can also find interesting information in it. We will help you understand the basics of cryptocurrencies and their connection to the metaverse, the steps for trading and using them, and how to protect yourself from potential scams. Whether you are a complete beginner or an experienced cryptocurrency trader, you will find useful information and tips in this handbook.
Cryptocurrencies are more than a means of payment. They are a symbol of change, independence and innovation, both in the real world and in the growing metaverse. However, to use cryptocurrencies properly in the digital world, you first need to understand what they really are. In the rest of this handbook you will learn the basics, so you can feel safe and confident as you explore this dynamic world.
Let's get started!
What are cryptocurrencies?
Cryptocurrencies are a digital form of currency, that is, virtual currencies that use cryptography to secure and control transactions, along with blockchain technology. The main characteristic of cryptocurrencies is their decentralization, which means they are not controlled by central institutions such as banks or governments. This makes them independent of traditional financial systems and enables the global exchange of value.
Cryptocurrencies run on a technology known as blockchain, which is decentralized and secure. Every cryptocurrency transaction is recorded in blocks, and the blocks are linked in sequence to form a chain. This chain of blocks (blockchain) makes transactions secure and transparent.
When you want to make a cryptocurrency transaction, it is sent to the network with a cryptographic signature to ensure security. The transaction is then verified by miners through a computing process known as ASIC. Once the transaction is confirmed, it is added to a block on the blockchain, where it becomes immediately visible.
Control is distributed among the members of the network, which makes cryptocurrencies resistant to censorship and allows users to manage their own finances independently.
ETH (Ethereum)
Ethereum (ETH), together with Bitcoin (BTC), is one of the most powerful cryptocurrencies. However, Ethereum is not just a currency – it is a network designed for building decentralized digital applications (DApps).
Ethereum launched on July 30, 2015, and its founder, Vitalik Buterin, had published the Ethereum white paper describing the technology back in 2013. Development of the platform began soon after the paper was published, and the Ethereum blockchain launched two years later. Ethereum initially had 210 million coins and was mined using a Proof of Work (PoW) system. The switch to Proof of Stake (PoS) introduced the burning of a certain number of coins, with the goal of reducing the total supply to 100 million coins. This transition enables greater efficiency and reduces energy consumption.
Ethereum was created to offer advanced capabilities, including smart contracts, which execute automatically when certain conditions are met, and decentralized applications (DApps), which let users build applications on the blockchain network. Its cryptocurrency, ETH, is used for transactions and to pay for resources on the Ethereum network.
The Ethereum ecosystem has enormous potential. At one panel, I personally heard Vitalik Buterin say that by 2030 Ethereum could be handling 70–80% of the world's finances. Indicators of this development include a recent partnership with PayPal, as well as collaboration with traditional money transfer institutions.
Ethereum is not just a currency, but a foundation for building decentralized solutions that will shape the future of the financial system and other industries.
Crypto glossary and crypto slang
- Altcoin
- An alternative cryptocurrency; every coin in existence other than Bitcoin is considered an altcoin.
- Altcoin Season
- A period when alternative cryptocurrencies rise faster than Bitcoin. This usually happens when Bitcoin has been stable for a while.
- ATH (All-Time High)
- The highest price a cryptocurrency has ever reached.
- Augmented Reality (AR)
- Technology that blends digital elements with the real world, letting users see virtual objects in their real surroundings.
- Avatar
- A digital representation of a user in the metaverse, which can be customized to their wishes and preferences. Any avatar can also be an NFT.
- ADA (Cardano)
- A blockchain platform focused on sustainability, scalability and interoperability that offers smart contracts and decentralized applications (DApps) with a scientific approach to development. It makes a significant contribution to the education and research sectors.
- Bear Market
- A period when cryptocurrency prices are falling. It refers to a longer stretch of time, usually driven by heavy selling and the issuance of new tokens.
- BIP (Bitcoin Improvement Proposal)
- A proposal for improving the Bitcoin protocol.
- BTC (Bitcoin)
- The first and best-known cryptocurrency, created in 2009.
- Blockchain
- A decentralized ledger that keeps a record of all transactions on a crypto network.
- Bull Market
- A period when cryptocurrency prices are rising. It is driven by large inflows of new capital, as well as by technologically groundbreaking events.
- Cold Storage
- Keeping cryptocurrencies offline for extra security, for example on an offline wallet (a cold hardware wallet).
- Consensus Algorithm
- The technology used to reach agreement among network members on the validity of transactions.
- Cross-Chain
- A process that enables communication between different blockchain networks that are not inherently compatible. It is a complex process, and one of the projects that makes it possible is WAN.
- Decentralization
- The principle that there is no central authority controlling cryptocurrencies and blockchain networks. The network's users are its owners and rule-makers. Some projects let the community decide on the project's future direction in a very transparent way.
- Decentralized Identity
- A concept in which users have full control over their digital identity and data, especially in the metaverse.
- DeFi (Decentralized Finance)
- A system that uses smart contracts and blockchain technology to provide financial services.
- Digital Land
- A virtual plot of land in the metaverse that users can buy, rent or use to build digital structures.
- Digital Signature
- A technique used to verify the authenticity and integrity of digital messages and transactions.
- Distributed Ledger Technology (DLT)
- Technology based on distributed ledgers, which includes blockchain.
- DOT (Polkadot)
- One of the best-known crypto projects, which I personally value and follow with great interest.
- Ether (ETH)
- The cryptocurrency used to run smart contracts on the Ethereum network.
- Fiat Currency
- Traditional national currencies, such as the dollar and the euro.
- FIL (Filecoin)
- A decentralized data storage platform that uses blockchain technology and IPFS (InterPlanetary File System) to share and store data across a decentralized network.
- FOMO (Fear of Missing Out)
- The fear of missing out, an emotional factor that can influence cryptocurrency trading decisions.
- Fork
- A change in a blockchain's software that results in a new version of the blockchain.
- Gas Fee
- The fee a user pays to execute a transaction or a smart contract on the Ethereum network. Other networks also have their own “gas fees”, and their size determines the cost of a transaction.
- Halving
- A periodic reduction of the reward given to miners on a blockchain, usually every four years, as is the case with Bitcoin.