Bitcoin in Poland
on January 3, 2009, Nakamoto g up the first batch of 50 bitcoins on a small server in Helsinki, Finland
on May 21, 2010, the first bitcoin transaction: Laszlo hanyecz, a Florida programmer, bought a $25 pizza coupon with 10000 BTC
on July 16, 2010, the price of BTC rose by US $0.08 from US $0.008. The first sharp price fluctuation shows the rise of new things
on July 17, 2010, the first bitcoin platform was established
on November 6, 2010, the price on mtgox reached $0.5, and the bitcoin economy reached $1 million
on December 7, 2010, the first portable device to portable device transaction was realized on Nokia 900, with a transaction volume of 0.42btc
on February 9, 2011, the price reached US $1 for the first time, which is equivalent to US $1. The news that BTC is equivalent to us dollar has been widely reported by the media, which has aroused people's great attention, and the number of new users has increased greatly. In the next two months, bitcoin and pound sterling, Brazilian currency, Polish currency exchange trading platform has opened
on March 18, 2011, the BTC / USD exchange rate hit a seven week low, falling to US $0.7
on August 20, 2011, the first bitcoin conference and World Expo were held in New York. Among Google trend counties, bitcoin's attention reached a new high, with a price of $11 at that time
on November 14, 2011, the price of bitcoin hit a new half year low of $1.99
on September 15, 2012, the bitcoin conference was held in London. At this time, the price of bitcoin was $11.8
on September 27, 2012, bitcoin fund was founded, and the price of bitcoin was $12.46
on November 25, 2012, the first bitcoin conference in Europe was held in Prague, Czech Republic. At this time, the price of bitcoin was $12.6
on February 19, 2013, bitcoin client v8.0 was released. At this time, the price of bitcoin was $28.66
on April 10, 2013, BTC set a record high price of $110
on May 9, 2013, BTC Chinese, the largest bitcoin reporting website www.sosobtc.com The company obtained the investment fund Union Square's US $5 million round a investment, and the price of bitcoin was US $112.09 at this time< On May 28, 2013, the Department of Homeland Security banned the virtual currency service of Liberty Reserve, a Costa Rican exchange company, for its suspected xiqian and unlicensed fund transfer business, U.S. prosecutors said that this will become the largest international xiqian lawsuit in history, with the scale of absorbing money reaching 6 billion US dollars. A large number of users, including China, will lose all their money. At this time, the price of bitcoin is 128 US dollars
in June 2013, Netcom said that the United States will withdraw from qe3, deflationary bitcoin and quantitative easing monetary policy, which are the relationship between the two
on June 27, 2013, the German Conference made a decision: holding bitcoin for more than one year will be tax-free, which is considered by the instry to recognize the legal status of bitcoin. At this time, the price of bitcoin is $102.24
on June 28, 2013, mtgox obtained the monetary service license issued by the financial crime enforcement network office of the U.S. Department of the Treasury. Transaction standardization may mean that bitcoin is on the right track, government risk is reced, and its pace of integration into the display economy will be accelerated. At the same time, it will play an exemplary role in other virtual currencies. At this time, the price of bitcoin is $97.99
on November 28, 2013, the bitcoin trading price of Mt. GOx, a popular bitcoin exchange, broke through $1000, reaching a record high of $1073
on November 29, 2013, the trading price of bitcoin on Mt. GOx, a popular exchange, hit a record high of US $1242, while the price of gold was US $1241.98 an ounce, surpassing that of gold for the first time.
The concept of bitcoin was first proposed by Nakamoto on November 1, 2008, and was officially born on January 3, 2009. According to the idea of Nakamoto, the open source software is designed and released, and the P2P network on it is constructed. Bitcoin is a virtual encrypted digital currency in the form of P2P. Point to point transmission means a decentralized payment system
unlike all currencies, bitcoin does not rely on specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses the distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses the design of cryptography to ensure the security of all aspects of currency circulation
extended data:
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
to mine bitcoin, you can download the special bitcoin computing tools, register various cooperation websites, fill the registered user name and password into the computing program, and then click the operation to officially start
the bitcoin network is robust, but the bitcoin trading platform is fragile. Trading platform is usually a website, which will be attacked by hackers or shut down by competent authorities
public key system: corresponds to a public key and a private key, keeps the private key in the application and publishes the public key. When Party A transmits information to Party B, it can use Party A's private key to encrypt the information, and Party B can use Party A's public key to decrypt the information, so as to ensure that the third party cannot impersonate Party A to send the information; At the same time, when Party A transmits information to Party B, it is encrypted with Party B's public key and sent to Party B, and then Party B decrypts it with his own private key, so as to ensure that the third party cannot eavesdrop on the communication between the two people. RSA is the most common public key system, but the lliptic curve digital signature algorithm is used in bitcoin protocol. What's the difference between cash and bank account? Bitcoin is an electronic currency in BTC. In this article, it is also used to refer to the whole bitcoin system. Like opening an account in a bank, the corresponding concept in bitcoin is address. Everyone can have one or more bitcoin addresses, which are used to pay and collect money. Each address is a string that starts with 1. For example, I have two bitcoin accounts, and. A bitcoin account is uniquely determined by a pair of public key and private key. To save the account, you only need to save the private key file. Unlike bank accounts, banks keep all transaction records and maintain the book balance of each account, while bitcoin's transaction records are jointly maintained by the whole P2P network through a pre agreed protocol. How much money is in my account address? Although the current account balance can be seen by bitcoin software, unlike banks, there is no place to maintain the book balance of each address. It can only calculate the account balance in real time through all historical transactions. How do I pay? When I pay from address a to address B of the other party, the payment amount is e. at this time, both parties will announce the transaction information to each network node, telling address a to pay to address B, and the payment amount is e. In order to prevent the third party from forging the transaction information, the transaction information will be encrypted with the private key of address A. at this time, the network node receiving the transaction information can use the public key of address a to verify that the transaction information is indeed sent by address a. Of course, trading software will help us do these things, we just need to input the relevant parameters in the software. What will the network node do after receiving the transaction information? This is the most important part of the bitcoin system, which needs to be elaborated. For the sake of simplicity, only bitcoin protocol has been implemented. In the current version, each network node will save all transaction information synchronously. There are two kinds of transaction information in history, one is & quot; Verified & quot; The transaction information, that is, the verified transaction information, is stored in a series of "blocks". Each & quot; block" Is the previous & quot; bock" The ID of each block is the hash code of the hash code of the block and the new transaction information (see an actual block). The other category refers to those who also & quot; Unverified & quot; The transaction information just paid above belongs to this category. When a network node receives new unverified transaction information (possibly more than one), it can calculate the book balance of each address at that time because the node keeps all the transaction information in history, so it can calculate whether the transaction information is valid, that is, whether there is enough balance in the payment account. After eliminating the invalid transaction information, it first takes out the last & quot; block" Then, the unverified transaction information is combined with the ID, and a verification code is added to form a new "block". It needs a lot of calculation to build a new block, because it needs to calculate the verification code, so that the above combination becomes a block, that is, the first several bits of the hash code of the block are 1. At present, the first 13 bits need to be 1 (generally, the specific method is uncertain), which means that if the block is generated by enumeration method, the average number of enumerations is 16 ^ 13. Using CPU resources to generate a block is called "gold mining", because the proction of the block will get a certain reward, and the reward information has been included in the block. When a network node generates a new block, it will broadcast to other network nodes. However, this network block may not be accepted by the network, because it is possible that other network nodes have proced the block earlier. Only the earliest block or the block with the largest number of subsequent blocks is valid, and the remaining blocks are no longer used as the initial blocks of the next block. How does the other party confirm that the payment is successful? When the payment information is distributed to the network node, the network node begins to calculate whether the transaction is valid (that is, whether the account balance is enough to pay), and attempts to generate blocks containing the transaction information. When six blocks (one direct block and five subsequent blocks) contain the transaction information, the transaction information is considered "verified", so that the transaction is formally confirmed, and the other party can confirm the successful payment. A possible problem is that I will pay the balance of address a to address B, and at the same time pay to address C. If I only verify that the single comparison transaction is valid. At this point, my way of cheating is to generate six blocks including B to B and six blocks including C to C before the truth is revealed. Because I need a very long CPU time to generate a block, compared with the whole network, the probability of my cheating success is very small. What is the motivation of network nodes to proce blocks? As can be seen from the above description, in order to make the transaction information effective, the network node needs to generate 1 and 5 subsequent blocks to contain the transaction information, and such block generation is very CPU intensive. How to let other network nodes help to proce blocks as soon as possible? The answer is very simple. The agreement stipulates that BTC will be rewarded for the address where the block is proced, as well as the Commission promised by both parties. At present, the reward for procing a block is 50btc, which will be halved every four years in the future. For example, the reward will be 25btc from 2013 to 2016. Is the transaction anonymous? Yes, and No. All bitcoin transactions are visible. We can check all transaction records of each account, such as mine. But what's different from the banking monetary system is that everyone's account itself is anonymous, and everyone can open many accounts. In general, anonymity is not as good as it claims. But bitcoin has another advantage in doing black market trading: it can't be frozen. Even if the police trace a bitcoin address, there is nothing they can do unless they trace the computer used by the exchange based on the Internet address. How to ensure that bitcoin does not depreciate? Generally speaking, in the case of equivalent trading activities, the value of money is inversely proportional to the amount of money issued. Unlike the traditional money market, the central bank can determine the amount of money issued. Bitcoin does not have a central issuing institution. Only by procing blocks can we get a certain amount of BTC currency. Therefore, bitcoin's new amount of money depends on: 1. The speed of procing blocks: bitcoin's agreement stipulates that the difficulty of procing blocks is fixed at an average of 2016 every two weeks, about 10 minutes. Moore's law of doubling CPU speed every 18 months will not speed up the proction of block. 2. The number of rewards for block proction: at present, 50 BTC is awarded for each block proced, which is halved every four years. In 2013, 25 BTC is awarded, and in 2017, 12.5 BTC is awarded. Considering the above two factors, bitcoin's currency issuing speed is not controlled by any single node in the network. Its protocol makes the currency stock known in advance, and the maximum stock is only 21 million BTC
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
Recently, German Finance Minister Peter altemir and French finance minister Bruno lemer jointly held a press conference in Paris, saying that they will jointly promote the global supervision of the bitcoin at the G20 summit in Argentina this year, which will warn that the world's most popular cryptocurrency is being used by illegal groups
the regulation of bitcoin is likely to become a new topic of the G20 summit this year. Lemer has repeatedly said that he will propose to discuss the issue of bitcoin at the G20 summit. As for speculative risk, member countries need to discuss the regulation of bitcoin management together. US Treasury Secretary mu nuqin also said recently that he will work with the G20 to prevent cryptocurrencies such as bitcoin from becoming the digital equivalent of anonymous Swiss bank accounts
Experts suggest that the G20 and some international financial institutions should speed up the formulation of relevant principles and guidelines to provide cases and follow-up for countries to establish coordinated regulatory policies. At the same time, we should achieve global coordination in supervision to jointly crack down on illegal cryptocurrency transactions and crimeson January 3, 2009, Nakamoto g up the first batch of 50 bitcoins on a small server in Helsinki, Finland< On May 21, 2010, the first bitcoin transaction: Florida programmer Laszlo
hanyecz bought a $25 pizza coupon with 10000 BTC< On July 16, 2010,
the price of BTC rose by US $0.08 from US $0.008, showing the rise of new things
on July 17, 2010, the first bitcoin platform was established
on November 6, 2010, the price on mtgox reached $0.5, and the bitcoin economy reached $1 million
on December 7, 2010, the first portable device to portable device transaction was realized on Nokia 900, with a transaction volume of 0.42btc
on February 9, 2011, the price reached US $1 for the first time, which is equivalent to US $1. The news that BTC is equivalent to us dollar has been widely reported by the media, which has aroused people's great attention, and the number of new users has increased greatly. In the next two months, bitcoin and pound sterling, Brazilian currency, Polish currency exchange trading platform has opened
on March 18, 2011, the BTC / USD exchange rate hit a seven week low, falling to US $0.7
on August 20, 2011, the first bitcoin conference and World Expo were held in New York. Among Google trend counties, bitcoin's attention reached a new high, with a price of $11 at that time
on November 14, 2011, the price of bitcoin hit a new half year low of $1.99
on September 15, 2012, the bitcoin conference was held in London. At this time, the price of bitcoin was $11.8
on September 27, 2012, bitcoin fund was founded, and the price of bitcoin was $12.46
on November 25, 2012, the first bitcoin conference in Europe was held in Prague, Czech Republic. At this time, the price of bitcoin was $12.6
on February 19, 2013, bitcoin client v8.0 was released. At this time, the price of bitcoin was $28.66
on April 10, 2013, BTC set a record high price of $110
on May 9, 2013, BTC Chinese, the largest bitcoin reporting website www.sosobtc.com The company obtained the investment fund union
square's $5 million round a investment, and the price of bitcoin was $112.09< On May 17, 2013, the San Jose bitcoin conference was held with 1300 participants. At this time, the bitcoin price was US $119.1.
on May 28, 2013, the US Department of Homeland Security banned the virtual currency service of Liberty Reserve, a Costa Rican exchange company, for suspected xiqian and unlicensed fund transfer business, U.S. prosecutors said that this will become the largest international xiqian lawsuit in history, with the scale of absorbing money reaching 6 billion US dollars. A large number of users, including China, will lose all their money. At this time, the price of bitcoin is 128 US dollars
in June 2013, Netcom said that the United States will withdraw from qe3, deflationary bitcoin and quantitative easing monetary policy, which are the relationship between the two
on June 27, 2013, the German Conference made a decision: holding bitcoin for more than one year will be tax-free, which is considered by the instry to recognize the legal status of bitcoin. At this time, the price of bitcoin is $102.24
on June 28, 2013, mtgox obtained the monetary service license issued by the financial crime enforcement network office of the U.S. Department of the Treasury. Transaction standardization may mean that bitcoin is on the right track, government risk is reced, and its pace of integration into the display economy will be accelerated. At the same time, it will play an exemplary role in other virtual currencies. At this time, the price of bitcoin is $97.99< On November 28, 2013, the bitcoin trading price of Mt.
GOx, a popular bitcoin exchange, broke through $1000, reaching a record high of $1073
on November 29, 2013, the trading price of bitcoin on Mt. GOx, a popular exchange, hit a record high of US $1242, while the price of gold was US $1241.98 an ounce, surpassing that of gold for the first time.
Bitcoin BTC 2009 Satoshi Nakamoto is bitcoin / org ~ $24.3 billion is SHA-256; LTC 2011 coblee is litecoin / org ~ $3.6 billion is script infinite; IFC 2012 ifccion is ifccoin / ORG~$ $20 million is a script quark, qrk 2012, qrkcion is cgbcion / org - $10 million is a script zeta, ZET 2012 zetcony is ZET / org - $10 million is a script proof of work / POS

the people's Bank of China has been studying legal digital currency since 2014. According to the relevant person in charge of the digital currency Research Institute of the people's Bank of China, at present, the research and development of digital RMB is steadily advancing. Under the premise of adhering to double-layer operation, currency (M0) substitution in circulation and controllable anonymity, the digital RMB system has basically completed the top-level design, standard formulation, function research and development, joint debugging and testing, etc., and followed the principles of steady, safe, controllable, innovative and stable development The principle of practicality
the relevant person in charge of the digital currency Research Institute of the people's Bank of China stressed that the current online transmission of DC / EP information is the test content in the process of technology research and development, which does not mean the official launch of digital RMB. The current closed test of digital RMB will not affect the commercial operation of listed companies, nor will it affect the RMB issuance and circulation system, financial market and social economy outside the test environment< In short, the digital currency of the people's Bank of China is the electronic version of RMB
when it comes to digital currency, your first reaction may be bitcoin or Libra, which Facebook plans to launch< However, unlike these so-called digital currencies, the digital currency to be launched by the Central Bank of China has national credit endorsement, which can be said to be the electronic version of RMB. Therefore, the digital currency of the central bank has the nature of legal compensation
more importantly, with the endorsement of the state, the value of the central bank's digital currency will be more stable. Bitcoin and other so-called virtual currencies can not guarantee the stability of currency value, so it is common to be "cut leeks"
from the perspective of usage scenarios, the central bank's digital currency does not pay interest, and can be used in small, retail and high-frequency business scenarios, which is no different from paper money. At the same time, the use should comply with all the existing regulations on cash management, anti money laundering and anti-terrorism financing.
for example, gtx1060 6G 1070 1080 1080ti and 1050ti 4G
amd RX 560 and above all series
RX 470 480 and so on
old high-end graphics cards with video memory larger than 4G have also gone up
In February 2014, Australia recognized the legality of digital currency and paid taxes. on July 1, 2017, bitcoin officially became a currency in Australia and will be exempted from consumption tax since then, bitcoin traders and investors will no longer have to pay taxes when buying and selling bitcoin on regulated exchanges and trading platforms
2. In September 2013, Israel recognized the legitimacy of digital currency
3. In October 2013, the governor of the Central Bank of Israel indicated the inevitable trend of digital currency
< P > 4. In October 2013, Vancouver, Canada opened the world's first digital currency ATM5. In November 2013, Canada recognized the legitimacy of digital currency
6 In December 2013, France recognized the legality of digital currency
7. In May 2014, France established digital currency house
8. In December 2013, China's five ministries and commissions issued documents to recognize the legality of digital currency
9. In December 2013, South Korea recognized the legality of digital currency, Tax exemption
11. In December 2013, Poland recognized the legality of digital currency and paid taxes
12. In May 2014, Poland's Ministry of Finance recognized digital currency as a financial tool
13. In January 2014, Singapore recognized the legality of digital currency and paid taxes
14. In January 2014, Italy recognized the legality of digital currency, In February 2014, Australia recognized the legality of digital currency and paid taxes
