Can coinbase bitcoin come out
The account you receive bitcoin is your own bitcoin wallet address. It's different because you have created multiple bitcoin addresses. You can send the bitcoin from the address where you receive bitcoin to your original bitcoin wallet address. Let's take coinbase as an example to illustrate how to use bitcoin Wallet:
< UL >register
register an account first, which is equivalent to opening an account in a bank. Click sign up in the upper right corner to register an account. Enter your email and password on the registration page to register successfully
then, click accept and continue to accept the agreement
receiving bitcoin
after successful registration, you can sign in for account operation. You can select create new address in account settings / bitcoin addresses to select the address of each collection. Click Details on the right side of the newly created account to modify the label to mark the purpose of the address, and save changes to confirm the modification, so that you can clearly know what a certain payment is for
note: the 32 characters in the address are the address of each transaction, which can be sent to the person who wants to transfer bitcoin to you. Or enter the address where you are going to transfer bitcoin to complete the transfer operation. The transfer process may take some time
< UL > send bitcoin
of course, you can also transfer out bitcoin through send money in send / request. Click send money to enter the destination address (32 strings) in the dialog box, and enter the number of bitcoins to be transferred in the amount BTC. Of course, you can also write some information in the message. Then click the send money button to complete the transfer operation
1. Bitcoin by watching video
coinbase, a bitcoin exchange in the United States, launched a project called "coinbase earn" two years ago. You can get various digital currencies by watching some blockchain or bitcoin knowledge videos, and then answering some multiple choice questions. This kind of virtual currency is similar to collecting wool and can earn hundreds of dollars in general. But you have to register as a user first
2. Bitcoin loans earn interest
if you already have some bitcoin, you can earn bitcoin interest by borrowing. You are like a bank, lending your bitcoin to another person at a certain interest rate. Because the market is not regulated, interest rates are usually much higher than standard bank rates, which means there is potential for high returns. But there are also risks. What if the other party doesn't pay you back? Therefore, we need to choose some third-party P2P intermediary platforms to borrow, such as blockfi, NEXO, btcjam, bitbond, etc
3. Get bitcoin by doing tasks
everyone has more or less come into contact with some online earning platforms. You can register an account on the online earning platform, and then do some small tasks to get a few cents' income. These tasks include registering an app account, downloading an app, and so on. Bitcoin can also be obtained by doing tasks, which is the simplest way to get bitcoin. That is to say, the revenue from bitcoin is not much, and it is time-consuming
4. Take bitcoin for watching ads
some websites encourage users to watch ads or click on ads, and then pay users bitcoin as a reward. In fact, this is also a task of the nature of the site, your task is to go to other sites to see advertising or click advertising. At present, the well-known task publishing platform is ads4btc, which allows users to watch ads for 5 seconds, 10 seconds or 20 seconds, and then users earn bitcoin rewards
but the reward is very low. According to the price offered by ads4btc, if you watch ads all day, the income will not exceed $10, so it may not be a feasible choice for most people. Unless there is a cheating machine, it can replace you in advertising
5. Bitcoin faucet
bitcoin faucet is the most popular way to collect wool in coin circle. In December 2010, in order to let more people know and try to use bitcoin, Gavin andresson, member of bitcoin core development team, bought 10000 bitcoins for $50 and created a website called "bitcoin faucet". At that time, as long as you visit this website, you can get five bitcoins for free, which was worth about 5 cents at that time. This has a significant effect on people's acceptance of bitcoin
coinbase transaction is a special transaction that generates bitcoin "out of thin air". Only miners can write this kind of transaction, and the number of generated bitcoin is limited by rules (new currency reced by half for every 210000 blocks + transaction fee for this block)
however, the rules do not stipulate that the miner must take away all the rewards that can be taken, and can choose not to take them
therefore, a mine pool connected with the RSK side chain has made a bug before, forgetting to take away the reward and occupying a pit in a block for nothing, which is equivalent to destroying the corresponding amount of bitcoin, making the total amount of bitcoin decrease a little bit permanently
in addition, to spend a bitcoin, you only need to specify the transaction ID and output serial number
as like as two peas in multiple blocks repeatedly write identical coinbase transactions, the transaction ID is also repeated.
therefore, this kind of situation also occupies the pit of a block in vain, and permanently destroys the corresponding amount of bitcoin
it seems to me that this is still a security vulnerability, so the new version of bitcoin software later banned the writing of repeated coinbase transactions. But until now, there has been no ban on miners not getting their e rewards
generally speaking, a coin is controlled by a private key. If a coin is transferred to an address where no one knows the private key, it will be destroyed
if the owner does a good job in security, and the private key is not disclosed and cannot be guessed, but he accidentally loses the private key, it is equivalent to destroying all the coins he owns
there are only some special circumstances that require intentional destruction of coins
one is irreversibly converted into another kind of currency, such as the contract currency XCP attached to bitcoin and wormhole cash WHC attached to BCH
the second is to save certificates and data on the chain, such as the time stamp: panbiao.com/2013/08 /
and the crowd funding of the original Ethereum founding team: zhuanlan.hu.com/p/29
the private key is essentially a big number. Whoever knows this number can control the currency on the corresponding address. So the private key must be generated with reliable random number, otherwise it may be guessed and stolen
compared with the token, the address is the hash of the public key. There is no way to judge whether an address has a corresponding public key and private key (even if the public key is known, the corresponding private key cannot be known). Therefore, even if it is explicitly the address of "burned" token, the system does not prohibit the transfer in
strictly speaking, what locks the currency is a small program (script). This program takes the input as the public key and digital signature. First, check whether the public key hash is consistent, and then check whether the digital signature is valid. If it is valid, it will be verified and transfer is allowed; Otherwise, it will be judged that the transaction is illegal and refuse to package into the chain
it is the whole node software that explains and executes this program. It can be said that the software code of the whole node specifically defines a coin
however, the current situation is very embarrassing. Most miners do not run the whole node, only a few mines are running. The vast majority of users do not run the whole node, even if they run the whole node, they can only perform verification, no computing power, no block
on the morning of January 27, 2015, the first U.S. bitcoin exchange with formal license, founded by bitcoin company coinbase, will officially open on Monday
on January 17, 2017, the head of the New York Financial Services Department (nydfs) announced that it had passed the license application of the bitcoin trading platform coinbase, which means that coinbase's operation in New York State has finally obtained the official certification
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To register an account in coinbase, you also need a bank card that supports US dollars, such as visa and MasterCard. You can buy bitcoin by recharging US dollars on the platform
1. To register a coinbase account, the first step is to register a coinbase account. This will give you a safe place to store your bitcoin, and a simple way to exchange your local currency and bitcoin
< EM > question < / EM >
< EM > what is coinbase
< EM > A: < / EM >
< EM > is a bitcoin wallet service. You can collect and pay by opening this account. Similar to Alipay, money paid to bitcoin. em>
in Australia, in the past two years, Australian banks stopped providing banking services for bitcoin business, and the Australian government imposed double taxes on bitcoin transactions, which led to the escape of startups and exchanges related to bitcoin business overseas. Australia's bitcoin exchange market is significantly behind the growing markets such as South Korea and Japan. It is understood that Japan and South Korea currently control more than half of the global bitcoin exchange market share.
on February 25, 2021, the S-1 form submitted by coinbase for listing was approved by the securities and Exchange Commission of the United States. The company will be listed on NASDAQ with the stock trading code of coin. Coinbase has just turned from loss to profit this year. In 2020, its total revenue is $1.277 billion and net profit is $322 million. In 2019, the platform also has a net loss of $30.4 million. The latest liquidation price of the company has reached $373 / share, and the corresponding valuation is $100 billion. At the same time, global investors can more easily understand digital securities + (Hong Kong / US stocks) through multiple investment channels, so as to carry out favorable investment arbitrage
there is usually a price difference between digital securities and US stocks. If the price of digital securities is lower than that of U.S. stocks, digital securities have valuation investment advantages. If the price of digital securities is higher than that of U.S. stocks, U.S. stocks have the advantage of valuation investment. Of course, the valuation of US stocks is usually higher than that of digital securities
for investors, there are: ① more arbitrage opportunities; ② More arbitrage space; ③ Higher exit earnings
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Yes, coinbase requires users to provide access rights to the webcam when they register. It requires users to turn on the webcam to take their own photos and submit them