What is a cryptocurrency?
A cryptocurrency is a digital or virtual currency based on cryptographic principles. It uses encryption technology to secure transactions, generate new coins, and verify fund transfers. A key characteristic of cryptocurrencies is their decentralization, meaning they are not controlled by any central agency or government.
How do cryptocurrencies work?
Cryptocurrencies operate on a blockchain, a distributed public ledger which serves as a record of all transactions updated and maintained by currency holders. Units of cryptocurrency are created through a process known as mining, which involves using computer power to solve complex mathematical problems that result in the production of coins.
Key Technologies and Principles in Cryptocurrency
(1) Blockchain technology: It is a decentralized public ledger or a list of cryptocurrency transactions. Completed blocks, consisting of the most recent transactions, are recorded and added to the blockchain in a chronological and verifiable manner. All records are permanent and open to public. The blockchain is managed by market participants through a peer-to-peer network, following a set protocol for validating new blocks. Every connected node or computer automatically downloads a copy of the blockchain, allowing transparent transaction tracking without the need for central record-keeping.
(2) Block mining: It refers to the process of adding a new transaction record to the blockchain as a block. For certain cryptocurrencies like Bitcoin, the mining process would generate new coins, increasing the total number in circulation. Mining requires specific software to solve mathematical puzzles and verify legitimate transactions within a block. These blocks are added to the public ledger (blockchain) approximately every 10 minutes.
The main characteristics of cryptocurrencies
(1) Decentralization: Cryptocurrencies operate without a central authority, relying on a group of users for maintenance and governance.
(2) Security: Cryptocurrencies employ advanced cryptographic algorithms to protect transactions and control coin generation, making them more resistant to counterfeiting or tampering compared to traditional currencies.
(3) Anonymity: While all transactions are recorded on a public ledger, a user can maintain anonymity by using one or a set of encrypted addresses.
(4) Global Reach: Cryptocurrencies can be used for cross-border transactions, enabling users to send and receive funds anywhere in the world without relying on traditional banking systems.
How to trade cryptocurrencies?
A cryptocurrency exchange serves as a platform for buying, selling, and exchanging various cryptocurrencies. These platforms typically facilitate the trading of different digital currencies, determine prices based on market demand and popularity, and charge transaction fees as a percentage of the trade value.