Bitcoin

bitcoinsbitcoin walletBitcoin blockchainBTCminingBitcoin currency transactionsBitcoin systemblockchaincoinbasedigital currency bitcoin
Bitcoin is a cryptocurrency, a form of electronic cash.wikipedia
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Satoshi Nakamoto

Dorian NakamotoSatoshiSatoshi Nakomoto
Bitcoin was invented by an unknown person or group of people using the name Satoshi Nakamoto and released as open-source software in 2009.
Satoshi Nakamoto is the name used by the unknown person or people who developed bitcoin, authored the bitcoin white paper, and created and deployed bitcoin's original reference implementation.

Cryptocurrency wallet

Blockchain Asset Walletone hot and one coldstorage
Research produced by the University of Cambridge estimates that in 2017, there were 2.9 to 5.8 million unique users using a cryptocurrency wallet, most of them using bitcoin.
, there are over thirteen hundred cryptocurrencies; the first and best known is bitcoin.

Digital currency

electronic moneydigital currencieselectronic purse
It is a decentralized digital currency without a central bank or single administrator that can be sent from user-to-user on the peer-to-peer bitcoin network without the need for intermediaries.
In 2008, bitcoin was introduced, which marked the start of digital currencies.

Hal Finney (computer scientist)

Hal Finney
The receiver of the first bitcoin transaction was cypherpunk Hal Finney, who created the first reusable proof-of-work system (RPOW) in 2004.
He also was an early Bitcoin contributor and received the first bitcoin transaction from Bitcoin's creator Satoshi Nakamoto.

Gavin Andresen

Nakamoto is estimated to have mined one million bitcoins before disappearing in 2010, when he handed the network alert key and control of the code repository over to Gavin Andresen.
Gavin Andresen (born Gavin Bell ) is a software developer best known for his involvement with bitcoin.

Wei Dai

Other early cypherpunk supporters were creators of bitcoin predecessors: Wei Dai, creator of b-money, and Nick Szabo, creator of bit gold.
Wei Dai (undefined ) is a computer engineer best known as the creator of the Bitcoin predecessor " b-money" and as the developer of the Crypto++ library.

BitInstant

In April, exchanges BitInstant and Mt. Gox experienced processing delays due to insufficient capacity resulting in the bitcoin price dropping from $266 to $76 before returning to $160 within six hours.
BitInstant was a bitcoin exchange start-up based in New York City.

Bitcoin Foundation

Andresen later became lead developer at the Bitcoin Foundation.
It was founded in September 2012 in order to try to restore the reputation of bitcoin after several scandals, and to try to promote its development and uptake.

Mt. Gox

lost by Mt. GoxMtGox
The Mt. Gox exchange briefly halted bitcoin deposits and the price dropped by 23% to $37 before recovering to previous level of approximately $48 in the following hours.
Launched in July 2010, by 2013 and into 2014 it was handling over 70% of all bitcoin (BTC) transactions worldwide, as the largest bitcoin intermediary and the world's leading bitcoin exchange.

Blockchain

Blockchainsblockchain technologyblock
In March 2013 the blockchain temporarily split into two independent chains with different rules.
Blockchain was invented by Satoshi Nakamoto in 2008 to serve as the public transaction ledger of the cryptocurrency bitcoin.

Coincheck

Bitcoin prices were negatively affected by several hacks or thefts from cryptocurrency exchanges, including thefts from Coincheck in January 2018, Coinrail and Bithumb in June, and Bancor in July.
Coincheck is a bitcoin wallet and exchange service headquartered in Tokyo, Japan, founded by Koichiro Wada and Yusuke Otsuka.

Litecoin

LTC
Litecoin, an early bitcoin spin-off or altcoin, appeared in October 2011.
In technical details, litecoin is nearly identical to Bitcoin.

Silk Road (marketplace)

Silk RoadThe Silk RoadSilk Road drug website
After early "proof-of-concept" transactions, the first major users of bitcoin were black markets, such as Silk Road.
On 23 June 2013, it was first reported that the DEA seized 11.02 bitcoins, then worth a total of $814, which the media suspected was a result of a Silk Road honeypot sting.

Dark web

deep webdarknetdark
The FBI seized about 26,000 bitcoins in October 2013 from the dark web website Silk Road during the arrest of Ross William Ulbricht.
Sites associated with Bitcoin, fraud related services and mail order services are some of the most prolific.

Bitcoin network

bitcoin miningminingBitcoin protocol
If the private key is lost, the bitcoin network will not recognize any other evidence of ownership; the coins are then unusable, and effectively lost.
Users send and receive bitcoins, the units of currency, by broadcasting digitally signed messages to the network using bitcoin cryptocurrency wallet software.

Cypherpunk

cypherpunksCypherpunks mailing list
The receiver of the first bitcoin transaction was cypherpunk Hal Finney, who created the first reusable proof-of-work system (RPOW) in 2004.
Cypherpunk achievements would later also be used on the Canadian e-wallet, the MintChip, and the creation of bitcoin.

Hashcash

The system used is based on Adam Back's 1997 anti-spam scheme, Hashcash.
Hashcash is a proof-of-work system used to limit email spam and denial-of-service attacks, and more recently has become known for its use in bitcoin (and other cryptocurrencies) as part of the mining algorithm.

Bitcoin Unlimited

Alternative clients (forks of Bitcoin Core) exist, such as Bitcoin XT, Bitcoin Unlimited, and Parity Bitcoin.
Bitcoin Unlimited (BU) is a full node implementation for the bitcoin and Bitcoin Cash networks.

Peer-to-peer

P2Ppeer to peerpeer-to-peer network
It is a decentralized digital currency without a central bank or single administrator that can be sent from user-to-user on the peer-to-peer bitcoin network without the need for intermediaries.
Bitcoin and alternatives such as Ether, Nxt and Peercoin are peer-to-peer-based digital cryptocurrencies.

Proof-of-work system

proof-of-workproof of workreusable proof of work
The receiver of the first bitcoin transaction was cypherpunk Hal Finney, who created the first reusable proof-of-work system (RPOW) in 2004.
Proof-of-work systems are being used as a primitive by other more complex cryptographic systems such as bitcoin which uses a system similar to Hashcash.

Bitcoin Cash

Bitcoin ABCBitcoin BCH
On 1 August 2017, a hard fork of bitcoin was created, known as Bitcoin Cash.
In mid-2017, a group of developers wanting to increase bitcoin's block size limit prepared a code change.

Nick Szabo

bit gold
Other early cypherpunk supporters were creators of bitcoin predecessors: Wei Dai, creator of b-money, and Nick Szabo, creator of bit gold.
Bit gold was never implemented, but has been called "a direct precursor to the Bitcoin architecture."

Ross Ulbricht

Dread Pirate RobertsRoss William Ulbrichtseizure
The FBI seized about 26,000 bitcoins in October 2013 from the dark web website Silk Road during the arrest of Ross William Ulbricht.
Silk Road was designed to use Tor and bitcoin.

Roger Ver

Early bitcoin supporter Roger Ver said: "At first, almost everyone who got involved did so for philosophical reasons. We saw bitcoin as a great idea, as a way to separate money from the state."
Roger Keith Ver (born January 27, 1979 ) is an early investor in bitcoin-related startups.

Bitcoin Gold

On 24 October 2017 another hard fork, Bitcoin Gold, was created.
It is a hard fork of Bitcoin, the open source cryptocurrency.