Market Risk: Like with any investment, Bitcoin values can fluctuate. Indeed, the value of the currency has seen wild swings in price over its short existence. Subject to high volume buying and selling on exchanges, it has a high sensitivity to “news." According to the CFPB, the price of bitcoins fell by 61% in a single day in 2013, while the one-day price drop in 2014 has been as big as 80%.
Nigel Dodd argues in The Social Life of Bitcoin that the essence of the bitcoin ideology is to remove money from social, as well as governmental, control.[124] Dodd quotes a YouTube video, with Roger Ver, Jeff Berwick, Charlie Shrem, Andreas Antonopoulos, Gavin Wood, Trace Meyer and other proponents of bitcoin reading The Declaration of Bitcoin's Independence. The declaration includes a message of crypto-anarchism with the words: "Bitcoin is inherently anti-establishment, anti-system, and anti-state. Bitcoin undermines governments and disrupts institutions because bitcoin is fundamentally humanitarian."[124][123]
Computing power is often bundled together or "pooled" to reduce variance in miner income. Individual mining rigs often have to wait for long periods to confirm a block of transactions and receive payment. In a pool, all participating miners get paid every time a participating server solves a block. This payment depends on the amount of work an individual miner contributed to help find that block.[82]
The use of bitcoin by criminals has attracted the attention of financial regulators, legislative bodies, law enforcement, and the media.[220] In the United States, the FBI prepared an intelligence assessment,[221] the SEC issued a pointed warning about investment schemes using virtual currencies,[220] and the U.S. Senate held a hearing on virtual currencies in November 2013.[222] The U.S. government claimed that bitcoin was used to facilitate payments related to Russian interference in the 2016 United States elections.[223]
But not everyone is going along for the ride. Back in East Wenatchee, Miehe is giving me an impromptu tour of the epicenter of the basin’s boom. We drive out to the industrial park by the regional airport, where the Douglas County Port Authority has created a kind of mining zone. We roll past Carlson’s construction site, which is swarming with equipment and men. Not far away, we can see a cluster of maybe two dozen cargo containers that Salcido has converted into mines, with transformers and cooling systems. Across the highway, near the new, already-tapped out substation, Salcido has another crew working a much larger mine. “A year ago, none of this was here,” Miehe says. “This road wasn’t here.”

David Carlson: The Bitcoin Pioneer | Carlson, a former software engineer, is often credited with starting the basin’s bitcoin boom when he built one of the world’s first large-scale mines in an old furniture store in Wenatchee. “We’re where the blockchain goes from that virtual concept to something that’s real in the world, something that somebody had to build and is actually running,” he says. Here, Carlson stands in front of his latest mining endeavor, a megaproject made up of 24 prefabricated mining “pods.” | Patrick Cavan Brown for Politico Magazine

Keeping your Bitcoin wallet safe is essential as Bitcoin wallets represent high-value targets for hackers. Some safeguards include: encrypting the wallet with a strong password, and choosing the cold storage option i.e. storing it offline. It's also advisable to frequently back up your desktop and mobile wallets, as problems with the wallet software on your computer or mobile device could erase your holdings. 
That’s all transactions are—people signing bitcoins (or fractions of bitcoins) over to each other. The ledger tracks the coins, but it does not track people, at least not explicitly. Assuming Bob creates a new address and key for each transaction, the ledger won’t be able to reveal who he is, or which addresses are his, or how many bitcoins he has in all. It’s just a record of money moving between anonymous hands.
The software delivers the work to the miners and receives the completed work from the miners and relays that information back to the blockchain. The best Bitcoin mining software can run on almost any desktop operating systems, such as OSX, Windows, Linux, and has even been ported to work on a Raspberry Pi with some modifications for drivers depending on the platform.
Hot wallets refer to Bitcoin wallets used on internet connected devices like phones, computers, or tablets. Because hot wallets run on internet connected devices there is always a risk of theft. Think of hot wallets like your wallet today. You shouldn’t store any significant amount of bitcoins in a hot wallet, just as you would not walk around with your savings account as cash.

The domain name "bitcoin.org" was registered on 18 August 2008.[15] In November 2008, a link to a paper authored by Satoshi Nakamoto titled Bitcoin: A Peer-to-Peer Electronic Cash System[5] was posted to a cryptography mailing list. Nakamoto implemented the bitcoin software as open source code and released it in January 2009.[16][17][10] Nakamoto's identity remains unknown.[9]
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