No one knows. Not conclusively, at any rate. Satoshi Nakamoto is the name associated with the person or group of people who released the original Bitcoin white paper in 2008 and worked on the original Bitcoin software that was released in 2009. The Bitcoin protocol requires users to enter a birthday upon signup, and we know that an individual named Satoshi Nakamoto registered and put down April 5 as a birth date. And that's about it.
The bitcoin blockchain is a public ledger that records bitcoin transactions.[64] It is implemented as a chain of blocks, each block containing a hash of the previous block up to the genesis block[a] of the chain. A network of communicating nodes running bitcoin software maintains the blockchain.[30]:215–219 Transactions of the form payer X sends Y bitcoins to payee Z are broadcast to this network using readily available software applications. 

Regulatory Risk: Bitcoins are a rival to government currency and may be used for black market transactions, money laundering, illegal activities or tax evasion. As a result, governments may seek to regulate, restrict or ban the use and sale of bitcoins, and some already have. Others are coming up with various rules. For example, in 2015, the New York State Department of Financial Services finalized regulations that would require companies dealing with the buy, sell, transfer or storage of bitcoins to record the identity of customers, have a compliance officer and maintain capital reserves. The transactions worth $10,000 or more will have to be recorded and reported.
It's impossible to say how much bitcoin has increased in price single its earliest incarnation, because its value back then was in the fractions of cents. A conservative estimate, based on bitcoin's current price being around $6,300 per coin, and its early price being less than $0.01, would see bitcoin's value increasing more than 1 million fold in the last decade.
Josiah is an assistant editor at CCN. A former ancient and medieval literature teacher, he has been reporting on cryptocurrency since 2014. He lives in rural North Carolina with his wife and children. He holds investment positions in bitcoin and other large-cap cryptocurrencies. Follow him on Twitter @Y3llowb1ackbird or email him directly at josiah.wilmoth(at)

In 2014, researchers at the University of Kentucky found "robust evidence that computer programming enthusiasts and illegal activity drive interest in bitcoin, and find limited or no support for political and investment motives".[127] Australian researchers have estimated that 25% of all bitcoin users and 44% of all bitcoin transactions are associated with illegal activity as of April 2017. There were an estimated 24 million bitcoin users primarily using bitcoin for illegal activity. They held $8 billion worth of bitcoin, and made 36 million transactions valued at $72 billion.[227][228] A group of researches analyzed bitcoin transactions in 2016 and came to a conclusion that "some recent concerns regarding the use of bitcoin for illegal transactions at the present time might be overstated".[229] 

Bitcoin's journey continued slowly at first, but it hit the mainstream in 2013 after the first of several hyperinflation incidents occurred in the currency. In late 2013, the cryptocurrency spike in value from around $100 per coin to $1,000 in just over a month, before halving in value over the next three or four months. Bitcoin would not hit $1,000 again until 2017.
The future of global payments could be in the early stages of significant change, with Bitcoin and other cryptocurrencies gaining in popularity and use. These charts can keep you up to date on Bitcoin prices and market activity, and can be a useful tool for timing purchases or sales. While prices could go down as well as up, the Bitcoin market has enormous potential, and prices seen in 2017 could eventually look like a genuine bargain.a
^ Jump up to: a b c d Joshua A. Kroll; Ian C. Davey; Edward W. Felten (11–12 June 2013). "The Economics of Bitcoin Mining, or Bitcoin in the Presence of Adversaries" (PDF). The Twelfth Workshop on the Economics of Information Security (WEIS 2013). Archived (PDF) from the original on 9 May 2016. Retrieved 26 April 2016. A transaction fee is like a tip or gratuity left for the miner.
Bitcoin's blockchain can be loaded with arbitrary data. In 2018 researchers from RWTH Aachen University and Goethe University identified 1,600 files added to the blockchain, 59 of which included links to unlawful images of child exploitation, politically sensitive content, or privacy violations. "Our analysis shows that certain content, eg, illegal pornography, can render the mere possession of a blockchain illegal."[229]

Because of bitcoin's decentralized nature and its trading on online exchanges located in many countries, regulation of bitcoin has been difficult. However, the use of bitcoin can be criminalized, and shutting down exchanges and the peer-to-peer economy in a given country would constitute a de facto ban.[164] The legal status of bitcoin varies substantially from country to country and is still undefined or changing in many of them. Regulations and bans that apply to bitcoin probably extend to similar cryptocurrency systems.[165]

On 12 March 2013, a bitcoin miner running version 0.8.0 of the bitcoin software created a large block that was considered invalid in version 0.7 (due to an undiscovered inconsistency between the two versions). This created a split or "fork" in the blockchain since computers with the recent version of the software accepted the invalid block and continued to build on the diverging chain, whereas older versions of the software rejected it and continued extending the blockchain without the offending block. This split resulted in two separate transaction logs being formed without clear consensus, which allowed for the same funds to be spent differently on each chain. In response, the Mt. Gox exchange temporarily halted bitcoin deposits.[172] The exchange rate fell 23% to $37 on the Mt. Gox exchange but rose most of the way back to its prior level of $48.[56][57]
The most recent exciting news in Bitcoin history began in November 2017 and led to the current all-time high for the cryptocurrency. In 2017, Bitcoin went from trading at just over $900 to about $20,000. This was a journey with many ups and downs along the way, a drop in trading volumes due to the People’s Bank of China tightening oversight of Bitcoin exchanges and the U.S. Securities and Exchange Commission rejecting a Bitcoin exchange-traded fund.

Bitcoin is the world’s first open-source, decentralized proof-of-work digital currency and platform powered by blockchain technology. Transactions on the network are peer-to-peer, cryptographically secure, and do not require an intermediary. Bitcoin was the first cryptocurrency to introduce the concept of non-tangible, programmable money that is stored on a public blockchain. The now-famous Satoshi Nakamoto released the Bitcoin whitepaper in 2008, referencing the financial crisis of that year. It discussed the implementation of a cashless, digital payment system to counter fallible fiat currency systems. By January 2009, the first Bitcoin was mined. Nakamoto publicly released his research to the cryptocurrency community soon thereafter. It remains the largest digital currency by market cap.

In early February 2014, one of the largest bitcoin exchanges, Mt. Gox,[97] suspended withdrawals citing technical issues.[98] By the end of the month, Mt. Gox had filed for bankruptcy protection in Japan amid reports that 744,000 bitcoins had been stolen.[99] Months before the filing, the popularity of Mt. Gox had waned as users experienced difficulties withdrawing funds.[100]

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