Bitcoin E9

1. The development history of bitcoin in China is as follows:
trading platform launched on June 9, 2011
price of bitcoin in China reached 150 yuan on June 9, 2011
registered users exceeded 8000 on May 27, 2012
trading volume on May 9, 2012 exceeded 2000
trading volume on May 27, 2012 ranked second in the world
trading volume on May 29, 2012 ranked eighth in the world
double authentication function launched on August 28, 2012
February 2013 -The price of 15 bitcoin in China returned to 100 yuan
on April 10, 2013, the trading volume reached 28600 yuan
on April 10, 2013, the price of bitcoin in China reached 1944 yuan
on April 21, 2013, the United One Foundation launched a donation of bitcoin and donated 15 bitcoin to one foundation, For Sichuan disaster relief
launch mobile phone verification function on May 15, 2013
launch recharge free service charge on July 1, 2013
launch TenPay online banking automatic recharge online on September 3, 2013
implement transaction free service charge on September 24, 2013
transaction volume exceeded 50000 on October 22, 2013
bitcoin China price reached 1300 yuan on October 22, 2013
launch market price list function on October 28, 2013
CCTV on October 30, 2013 The price of bitcoin in China reached 2630 yuan on November 9, 2013, according to the report of Taiwan's two sets of "global financial link"
PayPal, the world's largest online payment platform, announced that it will cooperate with three bitcoin payment service providers to test bitcoin payment, but the payment service is only limited to virtual proct transactions, and users can only use bitcoin to buy e-books, electronic music, electronic games, electronic music, electronic games, etc And mobile phone ringtones
bitcoin is a new type of virtual currency, which is generated by a large number of calculations based on special algorithms. According to rigorous calculations, the stock of bitcoin is limited, with a total of 21 million, no more or less. After being created, bitcoin has rapidly become a "fixed asset" pursued by Internet speculators
in February 2014, mtgox, the world's largest trading platform, went bankrupt, casting a shadow on the whole bitcoin instry. Since the middle of 2014, the price of bitcoin has been in a downward trend for a long time
on August 12, 2015, the price of a bitcoin was only close to 1700 RMB
on the afternoon of February 8, 017, the inspection team of the business management department of the people's Bank of China interviewed the main principals of nine bitcoin trading platforms in Beijing, including "China bitcoin", "bitcoin trading network", "bitcoin", "yuncoin", "Yuanbao", "btc100", "jucoin", "coin shell" and "dahonghuo", which are engaged in bitcoin trading, Report the current problems of bitcoin trading platform, prompt the possible legal risk, policy risk and technical risk of the trading platform, understand the operation of the nine trading platforms, and put forward clear requirements: it is not allowed to engage in financial business such as financing currency, participate in money laundering activities, and violate the relevant national anti money laundering and anti money laundering regulations Foreign exchange management, payment and settlement and other financial laws and regulations shall not violate the state tax and instrial and commercial advertising management laws and regulations. If any bitcoin trading platform is found to have violated the above requirements and the circumstances are serious, the inspection team will request the relevant departments to shut down and ban it according to law

References: http://money.163.com/15/0926/09/B4E9TIAH00253B0H.html
http://www.ke.com/wiki/%E6%AF%94%E7%89%B9%E5%B8%81%E4%B8%AD%E5%9B%BD

2.

I think bitcoin China is a reliable platform. It is the first and largest bitcoin trading platform in China. It is operated by Shanghai satuxi Network Co., Ltd. and was established on June 9, 2011. The team members are mainly from China, Silicon Valley and Europe

bitcoin world is based on credit, and Chinese brands of bitcoin have high credibility in the global bitcoin field

3.

First of all, you should imagine a concept of "wallet" in your brain. Your bitcoin is in your wallet. A wallet can contain many... Many addresses. The form of the address is the form

with the bitcoin address generated in the bitcoin wallet, you can receive bitcoin from others, and you can also transfer the bitcoin in your account to the bitcoin address of others. Bitcoin address, like bank card number, has the functions of payment, transfer and withdrawal. However, when transferring money, you can only transfer money by knowing someone else's bitcoin address

if we simply compare a bitcoin wallet to a bank card account, then the address of the bitcoin wallet can be regarded as a bank card account number. The difference is that bitcoin addresses can not be stored on the network, but also exist independently of your wallet

< H2 > extended data:

bitcoin address is a string of 26 to 34 letters and numbers. It looks like a lot of messy code. To put it bluntly, it's just like your bank card number. All transfer records of each bitcoin address can be checked through blockchain query, which is open and transparent

address generation of bitcoin Wallet: 256 binary digits are randomly selected to form the private key, and then the address is generated by encryption function. This generation direction is unidirectional. That is, you know that the address cannot be decrypted to calculate the private key. At present, the computing power of human computer can't be cracked, so you can publish the address on the Internet with ease

reference link: bitcoin | network

4. The process of BTC address generation is as follows. You can check bitcoin Chinese wiki completely:
bitcoin address generation process

(Note: some numbers are marked with & quot; 0x" Begin with, meaning that the number is in hexadecimal notation& quot; 0x" It doesn't have any meaning in itself. It's a conventional writing method handed down from C language. For example, 0xa is 10 in decimal system. In addition, 1 byte = 8-bit binary = 2-bit hexadecimal)

in the first step, randomly select a 32 byte number and size from 1 to 0xFFFF ffff ffff ffff ffff ffff ffff fffe baae dce6 af48 a03b BFD2 5e8c d036 4141 as the private key


in the second step, the elliptic curve encryption algorithm (ecdsa-secp256k1) is used to calculate the uncompressed public key corresponding to the private key A total of 65 bytes, 1 byte is 0x04, 32 bytes are x coordinates, and 32 bytes are y coordinates




the third step is to calculate the SHA-256 hash value of the public key


the fourth step is to take the previous step result and calculate the ripemd-160 hash value


the fifth step is to take the previous step result and add the address version number (bitcoin main network version number "0x00")
00

the sixth step is to take the previous step result, Calculate the SHA-256 hash value


Step 7, take the result of the previous step, and then calculate the SHA-256 hash value (HA HA)


Step 8, take the first four bytes (8-bit hexadecimal)
d61967f6

Step 9 of the result of the previous step, and add these four bytes after the result of step 5, As a check (this is the hexadecimal form of the bitcoin address)
00d61967f6

Step 10: change the address with base58 notation (this is the most common form of bitcoin address)< br />

5.

FutureNet (FN FutureNet) is a pyramid marketing company. FutureNet claims to be located in Poland, Europe. It has been established for more than four years and has many operating companies all over the world. The business is spread over more than 190 countries, and about 1000000 paid members claim to make use of the trend of Internet plus big data + virtual currency + doubling. We should make the future coin one of the three largest digital currencies in the future. p> The entry fee of FN future can be divided into six levels: 10 US dollars, 25 US dollars, 50 US dollars, 100 US dollars, 500 US dollars and 1000 US dollars. There can only be three people below each layer, three people on the first layer, nine people on the second layer and 59049 people on the 10th layer. With an investment of 185 US dollars, you can make 800000 US dollars if you reach the 10th layer

FutureNet (FN FutureNet) draws lessons from some routines of Vicat. Under the banner of the decline of the public volleyball team and the victory of the public volleyball team, the MLM organization vigorously carries out head pulling MLM activities. The platform recharge activation adopts bitcoin recharge operation to avoid capital supervision and carry out illegal and criminal activities

< H2 > extended data:

the main characteristics of MLM currency:

1. It is covered with blockchain technology, and the technology is far from the real blockchain principle

2. Not to solve, optimize or change a business pain point in traditional instries

3. The token is not released through the smart contract of Ethereum, and there is no formal trading platform for digital currency, most of which are traded through the platform built by the project party

4

5. There will be rewards after pulling people in

6. A virtual currency

7. Tokenlon is a sub brand of consenlabs. At present, tokenlon includes two moles, IEX and DEX, which are the flash exchange function based on kyber network and the currency exchange function based on 0x protocol.

8. Xinwei B3, now the measured data is about 0.0023

9. Take the invoice to the maintenance department