Is the currency account a bitcoin wallet
Fire coin is a bitcoin trading platform. As of the end of 2016, the accumulated turnover of fire coin reached 200 billion yuan
bitcoin is a virtual encrypted digital currency in the form of P2P
Bitcoin is different from all currencies. Bitcoin does not rely on a specific currency institution. It is generated by a large number of calculations based on a specific algorithm. Bitcoin economy uses a 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. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction 
extended information:
fire coin business
1. Fire coin global station, headquartered in Singapore, provides digital asset trading and investment services
2. The digital asset trading platform based on Korean won provides digital asset trading services
3, China, has become a platform for information and research in vertical chain of block chain, providing regional chain technology research and application information for Chinese mainland users, and integrates services such as instry consultation, research and ecation training. p> The company is headquartered in Beijing, China, providing digital asset management services and user experience
a person signed by Nakamoto Tsui has put forward a revolutionary idea: let's create a currency that is not controlled by the government or anyone else! This idea is crazy: there is no asset support behind a string of figures, and no one is responsible for it. How can anyone accept it when you pay it to the other party as money
Merkle tree
looks like a binary tree, but this is the lower two nodes. Take the hash value to get the upper node. Just remember the root node to detect whether the whole tree has been tampered
the root hash value is stored in the block header, and the transaction process is stored in the block body. All nodes include block header and block body, but light nodes (such as bitcoin wallets on mobile phones) only include block header. This tree can prove that a transaction has been written into the blockchain
3. Consensus agreement
two issues should be paid attention to in decentralized currency:
1. Who can issue digital currency: mining
2. How to verify the legitimacy of transactions: blockchain
double spending attack
double spending attack is a major challenge of digital currency
all transactions in bitcoin have input and output. Where does bitcoin come from and where does it go
under normal circumstances, there may be two bifurcations, because two nodes obtain the bookkeeping right at the same time, and the two nodes package the block and calculate the random number at the same time. At this time, the two bifurcations will coexist temporarily until one of the blocks finds the next block first, which becomes the longest legal chain, and the other one is discarded<
Sybil attack
a malicious node keeps generating accounts. If the total number of accounts exceeds half of the total accounts, it obtains the control of the blockchain
consensus protocol in bitcoin
some nodes are malicious, and most nodes are good
idea 1: pack some transactions into blocks as candidate blocks, let each block vote, and write them into the blockchain if they pass
No, because some malicious nodes have been publishing blocks containing malicious transactions, and they have been voting and occupying resources. And some nodes don't vote<
idea 2: vote not by the number of accounts, but by computing power. Each node can generate legal transactions and put them into the block. These nodes start to try random numbers until H (block header) ≤ target is found, then this node has the right to account
the only way to generate bitcoin
coinbase transaction. There is no need to point out the source of the currency. If you have the bookkeeping right, you will get a reward< br />
50BTC-> 25BTC-> 12.5btc, the reward will be halved for every 210000 bitcoins
the process of bitcoin competing for bookkeeping rights is called mining. The node competing for bookkeeping right is called miner.
Remit money by drawing a draft
according to the requirements of the remitter, let the bank draw a bank draft to be paid by the bank in the receiving place, and the payee will present the draft to the bank in the receiving place abroad for payment, or entrust the opening bank to collect the money on his behalf
a handling fee of 1 ‰ of the remittance amount is charged for the bill exchange, and if it is in cash, the fee of cash discount exchange is also charged. Compared with ordinary remittance, it saves a sum of postal and telecommunication expenses
bitcoin does not rely on a specific monetary institution. It is generated by a large number of calculations according to a specific algorithm. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, And the use of cryptography design to ensure the security of all aspects of money circulation
the decentralized feature and algorithm of P2P can ensure that it is impossible to artificially control the value of bitcoin by mass manufacturing. The design based on cryptography can make bitcoin only be transferred or paid by the real owner
compared with fiat money, bitcoin does not have a centralized issuer, but is generated by the calculation of network nodes, and can circulate all over the world. It can be bought and sold on any computer connected to the Internet, and in the transaction process, Chinese and foreign people cannot identify the user's identity information< br />
bitcoin does not rely on specific currency institutions to issue. It is generated through a large number of calculations of specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction
bitcoin is very similar to cash
the advantages of bitcoin are: no freezing, no tracking, no taxes, and extremely low transaction costs. Compared with people who speculate in currency, it is wealth, and people outside the currency circle may think it is a fraud
bitcoin is a relatively mainstream digital currency, which can be properly invested. There are risks in the transaction. You can invest cautiously. You can search the fire coin, coin security, OK, dobby trading platforms on the Internet, which can trade bitcoin. These are relatively large trading platforms. Invest in mainstream digital currency, do not invest in counterfeit currency or air currency
bitcoin exchange can trade all kinds of digital currencies, and bitcoin wallet can only store bitcoin
bitcoin China is the largest bitcoin trading platform in China and the first bitcoin trading platform in China, which was established on June 9, 2011. There are ore pools, wallets and trading platforms
bitcoin wallet is roughly the equivalent of physical wallet in bitcoin network. The wallet actually contains your private key, which allows you to consume the bitcoin allocated to the wallet in the block chain. Like a real wallet, each bitcoin wallet displays the total balance of all bitcoins it controls and allows you to pay someone a certain amount of bitcoin. This is different from the credit card used by merchants to dect money.
if others know your private key address of bitcoin, they can directly operate your account number,
transfer out or trade,
so be sure to protect your private key address of bitcoin,
losing your private key address of bitcoin is equivalent to losing your bitcoin
virtual currency has no credibility. The people's Bank of China has long declared that virtual currency has no monetary value and does not recognize it as currency. Investment in virtual currency has great fluctuation and risk.