Decentralized cryptocurrency is produced by the entire cryptocurrency system collectively, at a rate which is defined when the system is created and which is publicly known. In centralized banking and economic systems such as the Federal Reserve System, corporate boards or governments control the supply of currency by printing units of fiat money or demanding additions to digital banking ledgers. In case of decentralized cryptocurrency, companies or governments cannot produce new units, and have not so far provided backing for other firms, banks or corporate entities which hold asset value measured in it. The underlying technical system upon which decentralized cryptocurrencies are based was created by the group or individual known as Satoshi Nakamoto.
What is cryptocurrency is a common question amongst new people who first hear about bitcoin or other cryptocurrencies. Cryptocurrencies are defined as digital assets used for medium of exchange with strong cryptography securing transactions, controlling possible creation of additional tokens or coins and verifying asset transfers. What is cryptocurrency backed by is another common question from people who are looking to get into crypto, and for that the answer is not so simple. Some of the cryptocurrencies are not backed by anything, and some of them are backed by physical assets.
Founded in 2014, Poloniex is one of the world’s leading cryptocurrency exchanges. The exchange offers a secure trading environment with more than 100 different Bitcoin cryptocurrency pairings and advanced tools and data analysis for advanced traders. As one of the most popular trading platforms with the highest trading volumes, users will always be able to close a trade position. Poloniex employs a volume-tiered, maker-taker fee schedule for all trades so fees are different depending on if you are the maker or the taker. For makers, fees range from 0 to 0.15%, depending on the amount traded.
The term altcoin has various similar definitions. Stephanie Yang of The Wall Street Journal defined altcoins as "alternative digital currencies," while Paul Vigna, also of The Wall Street Journal, described altcoins as alternative versions of bitcoin. Aaron Hankins of the MarketWatch refers to any cryptocurrencies other than bitcoin as altcoins.