What is cryptocurrency?

Mark Gao
CoinTiger
Published in
3 min readSep 25, 2018
Cryptocurrency 123

Cryptocurrency is an encrypted, decentralized digital currency used to verify transactions on a distributed system with open source software between peers.

The transfer of funds operates on the internet, independently of central banking and governments.

Transactions are added to a public ledger — also known as the blockchain via nodes on the network with consensus achieved through a proof-of-work system referred to as mining.

Cryptocurrencies are a subset of alternative currencies or specifically.

In order to understand cryptocurrency functions well, let’s see some professional vocabulary as follows:

Blockchain:A decentralised network that records transactions, much like a traditional ledger. These transactions can be any movement of currency, goods or secure data.

Blocks:Contain transactional information. Blocks can be thought of as the pages of a ledger.

Block reward:The new coins issued to miners when they have successfully mined a block of transactions on the Bitcoin (or any other cryptocurrency) network.

Satoshi:Satoshi Nakamoto is the person credited with inventing Bitcoin. It’s a pseudonym. The identity of the inventor of Bitcoin is unknown.A satoshi is also the smallest unit into which a Bitcoin is divisible. 1 Satoshi = 0.00000001 Bitcoin.

Public key:A public key is a digital code that uniquely identifies a wallet on a blockchain; ie. the wallet address. This is the address you give to somebody who wants to send you cryptocurrency.

Private key:A private key is a digital code, like a password, that is used to authorise cryptocurrency transactions on a blockchain. This code, which should be kept secret, authorises the owner to send coins from a specific wallet.

Wallet:Software with which you send and receive cryptocurrency. Remember, the coins are stored on the blockchain. The wallet contains the private keys that authorise the owner to send these coins to another wallet.

Exchange:A place where buyers and sellers meet to buy and sell an asset, like Bitcoin, shares or derivatives.

Order:An instruction to trade (buy or sell) via an exchange (e.g. the stock market). More specifically, we exchange Bitcoin for local currencies, as on the CoinTiger Exchange.

Taker order(Market order):This is either a buy order at / above the market price or a sell order at / below the market price. This order executes immediately, without waiting in the order book. Because it matches with maker order and takes them out of the market, it is said to be a‘taker’order.

Cryptography:The practice and study of techniques for secure communication in the presence of third parties called adversaries. In the context of cryptocurrency, cryptography validates and secures transaction information.

Bitcoin(BTC):The first cryptocurrency built on a blockchain and capped at 21 million units. Created by Satoshi Nakamoto in 2009, Bitcoin is the original cryptocurrency.

Ethereum(ETH):Created by Vitalik Buterin, Ethereum is a distributed computing platform, a blockchain built to process transactions and other information, such as smart contracts.

Exchange recommendation:Binance、OKEx、Bitfinex、Huobi、Bithumb、Upbit、Bit-Z&CoinTiger etc.

Exchange Token recommendation:BNB、HT、OKB、TCH、BGX、MX.

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