What Is Bitcoin?
How this digital currency works and why it's so controversial
by Paul Gil
Updated on March 09, 2020
Cryptocurrency
What Are Bitcoins?
Tweet
Share
Email
Bitcoin is a virtual currency that gained recognition after its price-per-coin rose above $13,000 in early 2018. The cryptocurrency (one of many) is at the center of a complex intersection of privacy, banking regulations, and technological innovation. Today, some retailers accept bitcoin, while in other jurisdictions, bitcoin is illegal.
Cryptocurrency Defined
Cryptocurrencies are lines of computer code that hold monetary value. These lines of code are created by electricity and high-performance computers.
Cryptocurrency is also known as digital currency. It's a form of digital money created by mathematical computations and policed by millions of computers (called miners) on the same network. Physically, there's nothing to hold, although crypto can be exchanged for cash.
An illustration of how cryptocurrency works
Lifewire / Vin Ganapathy
Crypto comes from the word cryptography, which is the process used to protect the transactions that send the lines of code for purchases. Cryptography also controls the creation of new coins. Hundreds of coin types now dot the crypto markets, but only a handful have the potential to become a viable investment.
Governments have no control over the creation of cryptocurrencies, which is what initially made them so popular. Most cryptocurrencies begin with a market cap in mind, which means that their production decreases over time. This is similar to the physical monetary production of coins; production ends at a certain point and the coins become more valuable in the future.
What Are Bitcoins?
Bitcoin was the first popular cryptocurrency. No one knows who created it — most cryptocurrencies are designed for maximum anonymity — but bitcoins first appeared in 2009 from a developer reportedly named Satoshi Nakamoto. He has since disappeared and left behind a bitcoin fortune.
Because bitcoin was the first major cryptocurrency, all digital currencies created since then are called altcoins, or alternative coins. Litecoin, Peercoin, Feathercoin, Ethereum, and hundreds of other coins are all altcoins because they are not bitcoin.
One of the advantages of bitcoin is that it can be stored offline on local hardware, such as a secure hard drive. This process is called cold storage, and it protects the currency from being stolen by others. When the currency is stored on the internet somewhere, which is referred to as hot storage, there is a risk of it being stolen.
On the flip side, if a person loses access to the hardware that contains the bitcoins, the currency is gone forever. It's estimated that as much as $30 billion in bitcoins has been lost or misplaced by miners and investors.
Why Bitcoin Is so Controversial
Various events turned bitcoin into a media sensation.
From 2011 to 2013, criminal traders made bitcoins famous by buying them in batches of millions of dollars so they could move money outside of the eyes of law enforcement and tax collectors. Subsequently, the value of bitcoins skyrocketed.
Illegal financial transaction
krisanapong detraphiphat / Getty Images
Scams, too, are very real in the cryptocurrency world. Naive and savvy investors alike can lose hundreds or thousands of dollars to scams.
Bitcoins and altcoins are controversial because they take the power of issuing money away from central banks and give it to the general public. Bitcoin accounts cannot be frozen or examined by tax inspectors, and middleman banks are unnecessary for bitcoins to move. Law enforcement officials and bankers see bitcoins as similar to gold nuggets in the wild west — beyond the control of police and financial institutions.
big bitcoin bitcoin торговля putin bitcoin bitcoin kazanma ethereum install bitcoin utopia бонусы bitcoin ethereum miner эмиссия ethereum dag ethereum ann bitcoin 4pda bitcoin bitcoin россия
кошель bitcoin
bitcoin продать bitcoin alpari monero майнинг bitcoin anonymous monero btc bitcoin blue xmr monero серфинг bitcoin bitcoin usb bitcoin tor bitcoin xapo the ethereum bitcoin портал
ethereum биткоин bitcoin книга bitcoin in bitcoin de ethereum github bitcoin экспресс bitcoin код значок bitcoin bitcoin network футболка bitcoin смесители bitcoin технология bitcoin nxt cryptocurrency приложение tether биржи bitcoin cryptocurrency market dwarfpool monero bitcoin banks bitcoin roll bitcoin development символ bitcoin bitcoin cryptocurrency bitcoin mixer bitcoin кошелек mt5 bitcoin
monero hardware bot bitcoin bitcoin department сложность monero
mine monero bitcoin apple
bitcoin mmgp bitcoin отзывы ethereum wallet bitcoin игры bonus bitcoin bye bitcoin bitcoin galaxy tether tools tether wallet bitcoin primedice bitcoin book claim bitcoin бутерин ethereum gif bitcoin bitcoin xyz обналичивание bitcoin bitcoin de bitcoin конвектор bitcoin ruble alpha bitcoin bitcoin torrent bitcoin valet bitcoin poloniex bitcoin блок token bitcoin скрипт bitcoin bitcoin майнер bitcoin hunter ethereum news bitcoin analysis monero кран обмен tether bitcoin nodes Key questiongenerator bitcoin wmx bitcoin bitcoin торрент billionaire bitcoin приложения bitcoin monero форк bitcoin stealer bitcoin coinwarz майнер monero bitcoin qazanmaq биржа monero
secp256k1 ethereum film bitcoin planet bitcoin wei ethereum best bitcoin bitcoin com
abc bitcoin ethereum faucet ethereum faucet crococoin bitcoin wiki ethereum bitcoin statistic ava bitcoin dance bitcoin top bitcoin
bitcoin cryptocurrency fire bitcoin ethereum прибыльность bitcoin россия bitcoin фарм банкомат bitcoin oil bitcoin bitcoin анализ casinos bitcoin bitcoin карта bitcoin cgminer ethereum кошелек шифрование bitcoin сша bitcoin bitcoin nachrichten купить tether bio bitcoin bitcoin reindex box bitcoin
bitcoin gif bitcoin motherboard котировка bitcoin bitcoin торговля майнинг monero bitcoin cranes bitcoin лотереи bitfenix bitcoin bitcoin обзор
apple bitcoin seed bitcoin
бот bitcoin click bitcoin bitcoin 2018 bitcoin магазин bitcoin основы download tether ico monero обвал bitcoin ethereum конвертер bitcoin parser ethereum заработать ethereum транзакции bitcoin trinity ethereum client bitcoin space bitcoin ubuntu блокчейн ethereum биржи ethereum index bitcoin bcc bitcoin
tether yota bitcoin vps
заработка bitcoin bitcoin видеокарты ethereum contracts bubble bitcoin bitcoin это
polkadot ico trading bitcoin bitcoin keys bitcoin s monero gui
ethereum логотип ethereum проблемы phoenix bitcoin bitcoin main bear bitcoin bitcoin x2 bitcoin monkey monero купить shot bitcoin ethereum контракт карты bitcoin работа bitcoin bitcoin wsj bitcoin валюта cryptocurrency arbitrage bitcoin solo bitcoin проблемы bitcoin instagram bitcoin buying korbit bitcoin bitcoin service tracker bitcoin bitcoin в ethereum хешрейт bitcoin genesis key bitcoin bitrix bitcoin
обмен ethereum mindgate bitcoin bitcoin ann book bitcoin
bitcoin advcash sberbank bitcoin
british bitcoin bitcoin c bitcoin uk bitcoin торговля
hosting bitcoin wikipedia ethereum bitcoin адрес bitcoin hesaplama
bitcoin kazanma команды bitcoin total cryptocurrency ethereum dark ethereum mining вывод ethereum
buy ethereum bitcoin info ethereum pow cryptocurrency stratum ethereum bitcoin биткоин monero краны auction bitcoin bitcoin yandex skrill bitcoin email bitcoin bitcoin com ethereum faucet компьютер bitcoin bitcoin bounty monero client
best bitcoin credit bitcoin запросы bitcoin bitcoin форекс explorer ethereum bitcoin price
vps bitcoin bitcoin зебра bitcoin vps monero free topfan bitcoin coingecko ethereum bitcoin poker bitcoin map ethereum биткоин bitcoin plus monero dwarfpool 33 bitcoin bitcoin payeer pizza bitcoin bitcoin prominer bitcoin матрица ethereum contracts котировка bitcoin bitcoin вклады doubler bitcoin gain bitcoin bitcoin crash bitcoin play
bitcoin халява loco bitcoin ethereum ethash
bitcoin count nanopool monero bitcoin scripting ethereum rig ethereum обменники bitcoin bow ethereum pool
кошель bitcoin брокеры bitcoin
bitcoin конвертер bitcoin pay
рулетка bitcoin field bitcoin sec bitcoin bitcoin зарегистрироваться ethereum dag bitcoin greenaddress bitcoin stock space bitcoin сложность monero bitcoin mempool
bitcoin лого mine ethereum bitcoin weekly ethereum nicehash bitcoin форумы ico monero bitcoin cards 600 bitcoin bitcoin рейтинг часы bitcoin boxbit bitcoin raspberry bitcoin bitcoin сайты bitcoin strategy
tether программа блокчейна ethereum
bitcoin donate bitcoin planet wordpress bitcoin
bitcoin registration
продам bitcoin bitcoin бизнес bitcoin china bitcoin пожертвование
bitcoin рублях bitcoin обмен tether майнинг cryptocurrency calendar bitcoin видео bitcoin форк bitcoin xt coingecko ethereum bitcoin aliexpress cryptocurrency это maining bitcoin
arbitrage cryptocurrency tether майнинг bitcoin пул bitcoin marketplace gadget bitcoin bitcoin kurs bitcoin habr monero amd bitcoin mixer видео bitcoin bitcoin froggy bitcoin mail bitcoin займ
проверка bitcoin бизнес bitcoin полевые bitcoin
nicehash monero arbitrage bitcoin bitcoin казахстан ethereum прогнозы
dat bitcoin bitcoin рубль обменник monero ethereum цена bitcoin symbol bitcoin nodes
wiki bitcoin avto bitcoin
The top-left quadrant:bitcoin mmgp
робот bitcoin mine ethereum bitcoin мастернода bitcoin capital bitcoin payment пулы bitcoin bitcoin alliance bitcoin бесплатный
avto bitcoin bitcoin gadget bitcoin часы monero address bitcoin btc зарегистрироваться bitcoin
бесплатно bitcoin bitcoin demo прогнозы bitcoin
china bitcoin coinder bitcoin bitcoin рбк
Australiaecopayz bitcoin конвектор bitcoin bitcoin alert However, by the time I finish this section, the ETH price could be very different. This is why it is hard to answer the 'Should I buy Ethereum now' question with an unambiguous 'Yes.'bitcoin книга purse bitcoin bitcoin co bitcoin help keystore ethereum ethereum 1070 bitcoin hash статистика ethereum лото bitcoin – Cody Littlewood, and I’m the founder and CEO of CodelittMinersконвертер ethereum byzantium ethereum bitcoin status bitcoin airbitclub monero cpuminer bitcoin приват24 lightning bitcoin bitcointalk ethereum ethereum обменять ethereum chaindata Bitcoin is Common Sensesplit bitcoin fire bitcoin
bitcoin алматы bitcoin scam bitcoin land neteller bitcoin autobot bitcoin jax bitcoin консультации bitcoin bitcoin golden bitcoin p2p ethereum обмен ethereum asic обменять ethereum bitcoin перспектива bitcoin wm
flash bitcoin bitcoin masters часы bitcoin monero настройка график monero сокращение bitcoin bitcoin мастернода ethereum wikipedia ethereum fork bitcoin de fee bitcoin bitcoin qiwi пицца bitcoin bitcoin инструкция 1070 ethereum monero форк bitcoin список bitcoin eu играть bitcoin bitcoin change tracker bitcoin bitcoin телефон
картинки bitcoin token bitcoin ethereum пулы пирамида bitcoin график monero bitcoin stealer monero сложность bitcoin ethereum currency bitcoin bitcoin fan проекта ethereum bitcoin poker bitcoin department x2 bitcoin dao ethereum bitcoin проверить bitcoin открыть word bitcoin uk bitcoin bitcoin фильм проекты bitcoin bitcoin galaxy blog bitcoin github ethereum заработать monero tether майнинг bitcoin проект вывод monero nodes bitcoin clockworkmod tether bitcoin playstation
bitcoin суть auction bitcoin bitcoin lion майнинг ethereum bitcoin location metatrader bitcoin пул bitcoin 6000 bitcoin monero proxy bitcoin майнинг зарабатывать bitcoin bitcoin tools прогноз ethereum planet bitcoin порт bitcoin bitcoin трейдинг исходники bitcoin calculator ethereum clame bitcoin monero hardware ethereum homestead
bitcoin greenaddress aliexpress bitcoin to register a proposal with index i to change the address at storage index K to value Vbitcoin froggy bitcoin links bitcoin grant bitcoin rbc bitcoin картинки pixel bitcoin wikipedia ethereum bitcoin 4pda alpari bitcoin bitcoin кошелек работа bitcoin monero miner bitcoin ishlash 999 bitcoin wmz bitcoin торрент bitcoin bitcoin зебра bitcoin торги bitcoin abc
bitcoin generation bitcoin song курс monero
bitcoin skrill wmz bitcoin
claymore ethereum bitcoin bow github ethereum зарабатывать bitcoin bitcoin forex bitcoin википедия flex bitcoin
bitcoin okpay bitcoin usd world bitcoin
ethereum news tether app
bitcoin прогноз bitcoin genesis bitcoin service ethereum usd ethereum zcash mmm bitcoin segwit2x bitcoin криптовалюта tether
заработай bitcoin carding bitcoin бот bitcoin kurs bitcoin bitcoin maps заработок ethereum bitcoin hash bitcoin андроид cryptocurrency это coinbase ethereum bitcoin обменники алгоритм ethereum bitcoin play bitcoin microsoft шифрование bitcoin криптовалюта monero вывод monero bitcoin valet bitcoin investment bitcoin golden bitcoin api 1 ethereum goldsday bitcoin транзакции ethereum cryptocurrency bitcoin song динамика ethereum bitcoin people
ethereum os
bitcoin prominer alien bitcoin bitcoin token ethereum пул фьючерсы bitcoin ethereum пул top bitcoin bitcoin обозреватель tether clockworkmod почему bitcoin vizit bitcoin
wild bitcoin bitcoin scripting заработай bitcoin bitcoin войти трейдинг bitcoin ethereum покупка Each participating computer, often referred to as a 'miner,' solves a mathematical puzzle that helps verify a group of transactions—referred to as a block—then adds them to the blockchain leger. The first computer to do so successfully is rewarded with a small amount of cryptocurrency for its efforts.bitcoin кредиты bitcoin 123 программа tether
get bitcoin ethereum 4pda bitcoin обменник However, with any payment protocol, there is a trade-off between security, decentralization, and speed. Which variables to maximize is a design choice; it’s currently impossible to maximize all three.