The calculation of bitcoin option on fire coin
The remitter will pay bitcoin directly to the other party according to the address of the payee through the computer or smart phone
after the transaction data of bitcoin is packaged into a "data block" or "block", the transaction is initially confirmed. When a block is linked to a previous block, the transaction is further confirmed. After six block confirmations in a row, the transaction was irreversibly confirmed
the bitcoin peer-to-peer network stores all transaction history in the "blockchain". The blockchain continues to extend, and once new blocks are added to the blockchain, they will not be removed. In fact, blockchain is a distributed database composed of a group of scattered client nodes and all participants, which is a record of all bitcoin transaction history
extended data
users can buy bitcoin, and at the same time, they can "mine" bitcoin by using computers to perform a large number of calculations according to the algorithm. When users "mine" bitcoin, they need to use the computer to search for 64 bit numbers, and then compete with other gold miners by repeatedly solving puzzles to provide the required numbers for the bitcoin network. If the user's computer successfully creates a set of numbers, then they will get 25 bitcoins
from 2012 to 2014, bitcoin swept the world, and graally formed the "virtual currency" instry chain represented by bitcoin. This is a change in the financial instry and a new proct of the combination of the financial instry and the Internet. It represents a financial milestone in the new era and marks a new chapter in the history of the Internet. Bitcoin fund is one of the derivative procts represented by bitcoin in the era of "virtual currency"
according to the relevant news reports of Fuhui China, bitcoin fund will be open for operation in the autumn of 2014. Fuhui bitcoin fund, as the world's first operation mode of mutual benefit and win-win with financial management mode, is original and full of temptation and challenge
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
It can't turn. These are proxy websites, where can I convert currency
according to the 2017 Credit Suisse report, the number of millionaires in the world is about 36 million. Therefore, if a "bitcoin club" composed of users with more than one bitcoin is established, the number of members of the club will not exceed 21 million, less than the number of global millionaires
bitcoin is graally released through the so-called "mining", and today it has issued more than 85% of the total. It's going to get slower and slower, and it's going to stop completely by about 2140. At present, bitcoin's annualized inflation rate (3.7%) is far lower than that of the US dollar since 2008 (36%), and it will further drop to 1.7% after half a day's rection next year
theoretically, one bitcoin can be infinitely subdivided by expanding the precision of digital storage or by upper layer expansion (such as lightning network technology). However, the transfer fee actually limits the value of bitcoin, which is too small. Therefore, the current code only supports subdivision to one in 100 million. The unit calls it "cong", which is named by netizens in memory of the inventor of bitcoin, Nakamoto. Don't say that one bitcoin is too expensive, because you can buy 0.1 or 0.01
bitcoin is in the address. Address is a number, but for the convenience of writing and using, it is encoded into a string form. The bitcoin address is generated by the private key of bitcoin through cryptographic calculation. This generation process does not need Networking (because mathematical calculation does not need Networking), and can be generated offline on your own computer
Business performance
sales. In G-List, the total sales volume of Korean specialty has exceeded 15 million, including one million level album, three two million level albums and one three million level album, of which map of the soul: persona currently has 3.52 million, the highest sales volume in Korean history. In 2019, up to now (August 09, 2019), more than 5 million albums have been sold, including more than 1.1 million old albums. Japanese single sales have exceeded one million. At the beginning, overseas artists, including Japanese local artists, exceeded one million the next day for 11 years. Korean troupe is the best-selling kpop artist in Europe and America. IFPI released the "2018 global record list" and won the second and third place in bulletproof packaging
sound source. AK / PK audio source, the highest listening on the first day, 950000 + in the case of watermelon collapse three times, the top ten in the annual list, MMA annual song, MMA annual special, MMA annual art, golden record audio source, and full special list. The longest record of Mellon real-time is bulletproof. In a few days, the longest song on watermelon weekly list is bulletproof spring day, The top four stream media in G list are 100 million level, and the only song of Aidou group is 200 million level
tubing. If you don't want to say more, just mention that the first day was more than 60 million, less than two days, the number of hits in Europe and the United States was the highest in South Korea
each list and award ceremony. Billboard has three titles in a year, ranking eighth in the top 100, bbma's best combination and best social artist, AMA's best social artist and performance, and Grammy awarding guests. British and American Gao four crown album
tour. At the beginning, the rose bowl, Wembley and Chicago military stadium were all sold out. So far, ly and its follow-up sy tour have mobilized nearly 2 million people in less than a year
humanistic achievements
only two representative achievements
cultural medals. This is a commendation on behalf of bulletproof's status in South Korea. The medal is awarded to people with meritorious service, in recognition of bulletproof's promotion of South Korean culture. This commendation directly separates bulletproof from the lowest level of IDO in South Korean cultural circles, and is an affirmation of bulletproof national business card. As far as South Korea is concerned, bulletproof is a combination that can represent the cultural community and be as famous as outstanding representatives in other fields such as sports
Time magazine, including the cover of time magazine in 2018 and the top 100 influential people of time magazine in 2019. This is an affirmation of the international influence of bulletproof, which is praised as "next generation leaders" by time magazine and affirms its influence on the young generation. Cr.
it seems that South Korea's big reward is the easiest. Why don't exo start with South Korea's big reward first