Bitcoin transaction of PBC
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
Transaction mode of bitcoin
bitcoin is e-cash similar to e-mail, and 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. The following table lists some websites that download bitcoin wallets and addresses for free
a bitcoin address is a string of about 33 characters long, consisting of letters and numbers, always starting with 1 or 3, such as & quot& quot; Bitcoin software can generate address automatically, and it doesn't need to exchange information online, so it can be offline. More than 2 bitcoin addresses are available. Figuratively speaking, there are about two grains of sand in the world. If there is an earth in each grain of sand, then the total number of bitcoin addresses far exceeds the number of all the sand on all these "earths"
the bitcoin address and private key appear in pairs, and their relationship is just like the bank card number and password. A bitcoin address is like a bank card number, which records how much bitcoin you have on it. You can generate bitcoin address at will to store bitcoin. When each bitcoin address is generated, a corresponding private key of the address will be generated. This private key proves that you have ownership of the bitcoin at that address. We can simply understand the bitcoin address as the bank card number, and the private key of the address as the password of the corresponding bank card number. Only when you know the bank password can you use the money on the bank card number. Therefore, please keep your address and private key when using bitcoin wallet
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. Bitcoin P2P stores all transaction history in a "blockchain.". The blockchain continues to extend, and once new blocks are added to the blockchain, they will not be removed. Blockchain is actually a distributed database composed of a group of scattered client nodes and all participants, which is a record of all bitcoin transaction history. Nakamoto predicts that when the amount of data increases, users hope that not all the data will be stored in their own nodes. In order to achieve this goal, he uses the hash function mechanism. In this way, the client will be able to automatically eliminate those parts that it will never use, such as some very early bitcoin transactions
ten million investment roads, safety first, nonstandard operation, two lines of tears for relatives! The simplest is to hold bitcoin, and the most extreme is to leverage it all
the compromise is that in addition to holding BTC, we should also invest in some counterfeit currencies and use futures to do band. We should be conservative and only short, not long, but also lose money. If the owner of the building has a tendency to invest, it is suggested that you go first and learn about it.
the law of integer multiplication is extended to fractions, so that students can feel the subtle relationship between the multiplication of fractions by integers and the addition of fractions with the same denominator
2. Remember the pithy formula well
brackets should be calculated first with brackets, from front to back without brackets, multiplication and division first, and then addition and subtraction
3 Clear the concept
let students understand that the reciprocal of an integer is one of the original fractions, and the reciprocal of a fraction is to exchange the numerator and denominator
absolutely impossible
you can imagine this picture: payday is coming, your cold wallet has received 0.05 bitcoin, according to the bitcoin 60000 US dollars, you have earned 3000 US dollars this month, a total of 20100 RMB! You are very happy, just as you are going to have a big meal to reward yourself, bitcoin suddenly plummeted from $60000 to $50000, and it is still falling!! Your 0.05 bitcoin is still so much, but your income instantly reced to 16250, nearly 4000 yuan evaporated, not only that, but also the amount continued to decline with the naked eye!! At this time, I'm afraid no one would like to invite you to a big meal. Instead, I nervously took out my mobile phone and quickly sold bitcoin! When the transaction is completed and RMB 16000 is paid to your account, you will finally relax...
so why is bitcoin easy to store money and transfer assets? This is determined by its design principle. Professional knowledge is too complex. In short, bitcoin is a code city that can't be broken by hackers. All users involved in bitcoin trading in this city can't trace their real information through any technical means. Therefore, bitcoin has become a pure land of assets that governments can't control. In this city, your private property will always be yours, No one wants to take it away. If you forget your password, it will be miserable, because you don't want to take back your own bitcoin. It will be stored in this city forever. Therefore, the extreme security and secrecy of bitcoin make it easy for private property to completely get rid of the control of sovereign states, so it is reasonable for governments to study regulatory methods, because bitcoin is the most powerful in history, which can fight against the country's enemies economically