btc008
The earliest is a kind of network virtual currency. It is characterized by decentralization, anonymity, and can only be used in the digital world. It does not belong to any country or financial institution, and is not subject to geographical restrictions. It can be exchanged anywhere in the world. Therefore, it is used as a money laundering tool by some criminals. In 2013, the U.S. government recognized the legal status of bitcoin, making the price of bitcoin soar
< H2 > extended information:bitcoin is e-cash similar to e-mail. Both parties need "bitcoin wallet" similar to e-mail and "bitcoin address" similar to e-mail address. Just like sending and receiving e-mail, the remitter pays bitcoin directly to the other party through a computer or smart phone according to the recipient's address
starting from the essence of bitcoin, the essence of bitcoin is actually a special solution generated by a bunch of complex algorithms. A special solution is one of the infinite (in fact, bitcoin is finite) solutions that can be obtained from the equations. Every particular solution can solve the equation and is unique
many websites for technology players have begun to accept bitcoin transactions. Websites such as mtgox and btcchina, as well as some Taobao stores, can even accept services such as bitcoin exchange for us dollars and euro. There is no doubt that bitcoin has become a real currency in circulation, rather than a virtual currency like Tencent Q coin
1. Machine cost: the cost of purchasing mining machine
2. Power cost: the power cost consumed by machine mining
3. Auxiliary costs: personnel maintenance, network, cable consumables, heat dissipation, etc.
for a simple example, take the mining machine of ant S9, which consumes less power on the market, for example, the calculation power is 13.5T, and the power consumption is 1400W
when the mining machine runs for 24 hours: 1.4kw * 24 = 33.6 degrees
Shenma m3, which consumes more power on the market, has a calculation power of 11.5t, The power consumption is 2150w
under 24-hour operation, the power consumption of a single machine is 2.15kw * 24 = 51.6oc
which is roughly equivalent to the power consumption of energy-saving air conditioning, but the bitcoin miner needs 24-hour uninterrupted operation, the power consumption of a single machine is very large after a year's calculation, and the step price cost of household electricity is too high, When the market is not good, the income may not be enough for the electricity expenditure, so at present, mining will choose to be hosted in the mine, which can get cheap electricity and rece the cost price of mining. The price below 30% is the ideal price, which can keep the price of bitcoin falling to a low level, and there is still some income< According to the current mining difficulty of bitcoin:
BTC revenue per ton: 1th / s * 24h = 0.00007087btc
calculated by the comprehensive 12t machine computing power, the daily output is:
0.00007087t * 12t = 0.00085044btc
then the time required for a single machine to dig a BTC:
1 / 0.00085044 = 1175 days
the time required for ten mining machines to dig a BTC:
1 / 0.0085044 = 117 days
100 days In other words, according to the current difficulty, it takes about three years for a single miner to proce a bitcoin, 3.9 months for ten miners to dig a bitcoin, and 11.7 days for a hundred miners to dig a bitcoin. The cost of a single miner is about 8500, Ten are around 85000, one hundred is 850000, less than one million, and one month's income is more than two bitcoins. According to the current price of bitcoin, the price is about 120000. So, although the income of bitcoin mining is not as good as before, it is still considerable compared with other investment projects
however, these benefits do not include decting the cost of electricity charges and later maintenance of machines, so the premise of mining is to find a mine with low electricity charges. If the quantity is large, we need to find a safe, reliable and stable mine. What's more, we need cheap electricity to lower the cost price.
Bitcoin is a kind of network virtual currency. Bitcoin network generates new bitcoin through "mining". In essence, the so-called "mining" is to use computers to solve a complex mathematical problem to ensure the consistency of bitcoin network distributed accounting system. Assuming that the mining computing power is 100 mhash / s and the total computing power is 4000 ghash / s per day, 3600 bitcoins can be g out every 24 hours
China's computing power has accounted for more than 75% of the world, that is to say, 75% of bitcoin in the world is made in China. How long does it take to dig a bitcoin
bitcoin used to be very good at "digging", which can be done by ordinary computer CPU, and it can automatically "solve problems" by downloading software. But with the rise of currency price, more and more people want to "solve the problem", and the difficulty of mining is also increasing. Now, the amount of computation needed to dig a bitcoin is beyond the reach of ordinary people. Ordinary computers can't afford it
instry insiders said that in 2014, 100 bitcoins were generated from 500000 yuan of electricity charge per day, and the cost of electricity charge alone was 5000 yuan per coin. But now, the same cost has more than doubled, and the electricity cost of each bitcoin is as high as 10000 yuan
in the generation mechanism of bitcoin, mining reward is decreasing. At the beginning of the birth of bitcoin, the miners could get 50 bitcoins for each page of the ledger, and then 25 bitcoins for each page of the ledger, decreasing in turn. It's like digging gold. At first, it's more and less. The time point at which each new reward is reced by half is called half bitcoin proction
assuming that the mining computing power is 100 mhash / s, the total computing power is 4000 ghash / s per day in 2014, and 3600 bitcoins are g out every 24 hours
now, we can understand the difficulty of bitcoin digging in this way, which is equivalent to 100 million dice throwing numbers less than 100 million and 50 million. Whoever throws them first will get the bookkeeping right. At this point, 1050 million is a hash value. The process of throwing dice is called hash collision. The unit of mining power is the number of hash collisions per second
at present, the computing power of bitcoin in the whole network has reached 2.36 billion hash collisions per second, which is equivalent to the number of water droplets in more than 200000 50 meter long standard swimming pools. But even with such a large amount of computing power, it will take about 10 minutes to hit a hash value that meets the requirements
in 2012, bitcoin's output was halved for the first time, and in July 2016, bitcoin's output was halved for the second time. At present, 12.5 bitcoins are awarded for recording one page of account book. The next halving will take place around 2020, and the total number of bitcoins will not increase by 2040, with a total of 21 million
Related videos: how long does it take to dig a bitcoin
the recent market is 670 you 300 deal. How many deal do you have? I'll show you the money
I recommend some songs to you, and other songs, absolutely sad
lyric, I hope you can like them< After that day (OST)
1 http://222.161.138.14/imdjmusic/15/1866/2006010711366030925.wma
2 have you had a good time http://222.161.138.14/imdjmusic/15/78/2005122711356760492.wma
3 farewell again (the main feature of 2007 digital album)
http://222.161.138 14 / imdjmusic / 15 / 7454 / 2007101311922851631. Wma
4 women I know (Cheng Shijing's voice is so gentle)
4 http://222.161.138.14/imdjmusic/15/7454/2007101311922851642.wma
5 is more beautiful (the sad song in Shijing's new album
is my favorite, especially the climax, I'm so moved to hear that)
http://222.161.138.14/imdjmusic/15/9553/2008061212132449603.wma
6 Cheng Shijing - the way to me http://211.176.63.196 :8080/3/HIGH_ MP3 / 057 / 57736. MP3
7 sing Shijing - Tears letter (this song is "Vol.4 - want to dream again" released by Cheng Shijing on April 8, 2005
) http://bt13.lonelylive.cn/=.mp3
8 as before (this song was the main hit of his first solo album released in 2001)
http://121.254.138.11 :50000/stream/music/01/0000/0074/091 4 / contents / MP3 / SRC / 591256. MP3
9 thanks Cheng Shijing (this is a song from the reversal drama "angel of love" starred by the chief executive and mcmu, Quan Huibin, which is included in my brother's fourth chapter album "want to dream"!)< br />
http://bt9.lonelylive.cn/=.mp3
10 Joo -- because men (this is really sad and pleasant. Joo's voice is clear and a little hoarse. An 18-year-old girl can sing such a touching voice!!! Park Zhenying's music is really good< br />
http://121.254.138.11 : 50000 / stream / music / 01 / 0000 / 0074 / 0914 / contents / MP3 / SRC / 591256. MP3
11 Tim I love you (if you want to listen to sad songs, Tim's songs must be listened to, his singing skills are excellent)
very sad, very touching, This is his famous work)
http://podcache.cctv.com/published1//2006/11/24/pub1164329733047.mp3
12 Tim: like love (once sang live with Cheng Shijing)
http://218.63.177.194/wma_ Lp78 / B6 / 11933 / M5. Wma
13 Tim My Woman OST to the end of the world http://m.imdj.net/down/973/9934/2008080512178938391.wma
14 Jin Donglu: Thank you (South Korea's powerful singer, old-fashioned singer, absolutely powerful, The voice is special enough)
http://m.a.cn/0/1/3308/070409/jdl/1.wma
15: erase, discard and forget (the main part of Korean mythology group
sing, the voice is very infectious, Take the lyric route)
http://m.imdj.net/down/724/7528/2007102211930803071.wma
16 Kim Chung Kuo: her man (once infatuated with sad songs)
http://daumbgm.nefficient.co.kr/mgbdamu/A0901976/A090197600036402.wma
17 Zheng Zaiying: love, tears (I recommend my favorite voice, Korean soul female singer Zheng Zaiying's songs are absolutely first-class enjoyment, the sound gives people a sense of ethereal< br />
http://218.63.177.194/wma_ Lp81 / DSK2 / 1 / 12106 / N2. Wma
18 Zheng Zaiying: disappear with time
18 http://218.63.177.194/wma_ Lp81 / DSK2 / 1 / 12296 / i9. Wma
19 Zheng Zaiying: someone is living in my heart (sorry, I love you OST)
http://218.63.177.194/wma_ Lp81 / H4 / 011 / dh4zb. MP3
20 Bai Zhiying: no longer in love (Bai Zhiying's hoarse voice is absolutely sad, absolutely shocking)
http://m.tingshu.com/0/1/9388/060831/bzy/1.wma
21 Bai Zhiying: one love is enough
http://wma.31tg.com/2007/B/200799370120/3705142.wma
22 Li Xiuying short hair, I always think her voice is very special)
http://wma.31tg.com/2007/L/20079144025767/40266533.wma
23 Lin Zhengxi is in love. Don't leave (I'm not very familiar with this female singer. It seems that she is Lian's younger martial sister, the music of the woman in the advertisement of Samsung MP3, and the song is very good)
http://211.176.63.161 :8080/4/HIGH_ MP3 / 376 / 376447. MP3
24 the trace of Lin Zhengxi
http://s5.koook.com/mp3/d08/2006/05/21/0098.mp3
25 comet Shen mirror (it's needless to say that comet Shen's strength is obvious to all, People are also very handsome)
http://bt9.lonelylive.cn/=.mp3
26: after love http://59.38.110.71/story/mixmaster/Lyn.mp3
27% wish
http://m.imdj.net/down/3775/8532/2008022712041189486.wma
28 junjin's painful love, It's also very humorous. This song is the main song in the personal album released on August 25, 2008. It's very affectionate, unlike the funny junjin in the past variety show http://bt12.lonelylive.cn/=.wma
29junjin loves you, And Wen Zhenghe, a member of the myth group)
http://bt11.lonelylive.cn/=.wma
30 Park Huijing a love's concert http://bt12.lonelylive.cn/=.wma
31 song by Cao Chengmo, Quite standard)
http://wma.31tg.com/rh/hl1/c/ccm/01/001.wma
32 If Cao Chengmo is mine http://wma.31tg.com/rh/hl1/c/ccm/01/002.wma
33 Cao Chengmo, because you are the only one http://wma.31tg.com/rh/hl1/c/ccm/01/008.wma
34 the lover of an Zai Mo's friend, It's nice to sing)
http://wma.31tg.com/rh/hl1/a/azm/01/011.wma
35 being a person (I like this song)
http://wma.31tg.com/rh/hl1/a/azm/01/001.wma
36 for you http://wma.31tg.com/rh/hl1/a/azm/01/010.wma
37 Jin Zhenxun always thinks of you (this song is absolutely affectionate, Jin Zhengxun has a great voice and looks handsome. Ha ha!)< br />
http://wma.31tg.com/2006/J/2006985583408/55885458.wma
38 Jin Zhengxun can't make ends meet http://wma.31tg.com/2006/J/2006985583408/55843032.wma