Coinbase launched Ethereum
Publish: 2021-04-25 02:42:59
1. There is no difference between the good and the bad of digital currency exchanges. Generally speaking, the market depth of the exchange is considered. The greater the market depth is, the more popular the exchange is. Domestic hot money, OK, fcex. The United States has b network, coinbase. Japan has coins and so on. The market depth of these exchanges is very large, and they are all the top exchanges in the world. Of course, there are all kinds of problems, especially security problems
these exchanges basically support mainstream digital currencies such as bitcoin, Ethereum, wikilink and lightcoin.
these exchanges basically support mainstream digital currencies such as bitcoin, Ethereum, wikilink and lightcoin.
2. The issue of bitcoin is determined by the block height, that is, the distance from the No. 0 block of Genesis. Now when the number is reached, the total amount of bitcoin should be limited. After this village, there will be no store. If the miners dig a block but don't receive the reward of the block, the bitcoin will be destroyed forever
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
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
3. The issue of bitcoin is determined by the block height, that is, the distance from the No. 0 block of Genesis. Now when the number is reached, the total amount of bitcoin should be limited. After this village, there will be no store. If the miners dig a block but don't receive the reward of the block, the bitcoin will be destroyed forever
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.
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.
4. On September 4, 2017, seven ministries and commissions, including the people's Bank of China, China Banking Regulatory Commission and China Securities Regulatory Commission, jointly issued the announcement on preventing the financing risk of token issuance The announcement pointed out that token issuance financing refers to the illegal sale and circulation of tokens by the financing subject to raise the so-called "virtual currency" such as bitcoin and ether coin from investors. In essence, it is an unauthorized illegal public financing behavior, suspected of illegal sale of token bills, illegal issuance of securities, illegal fund-raising, financial fraud, pyramid schemes and other illegal criminal activities. Subsequently, the trading of legal currency was also prohibited
after that, the domestic exchanges responded one after another, stopped a series of domestic business correspondingly, and obtained the legal business licenses of exchanges in many countries overseas, moving towards the direction of compliance. Then there are some exchanges, because their own services are deeply rooted in the hearts of the people, and they have accumulated a certain number of users. Even when they stop their domestic business, they still use scientific Internet access and other methods to continue to follow the exchanges. And these exchanges, after continuous survival of the fittest, have graally evolved into the four major exchanges that insiders often say
according to the trading volume data of this quarter (data from the comprehensive comparison of non trumpet, CMC and coingecko), the four major overseas institutions are currency security, fire currency, coinbase and China currency. If we only talk about domestic exchanges, what the four major exchanges refer to are currency security, fire currency, China currency and okex< So there is no ha ha ha in China
after that, the domestic exchanges responded one after another, stopped a series of domestic business correspondingly, and obtained the legal business licenses of exchanges in many countries overseas, moving towards the direction of compliance. Then there are some exchanges, because their own services are deeply rooted in the hearts of the people, and they have accumulated a certain number of users. Even when they stop their domestic business, they still use scientific Internet access and other methods to continue to follow the exchanges. And these exchanges, after continuous survival of the fittest, have graally evolved into the four major exchanges that insiders often say
according to the trading volume data of this quarter (data from the comprehensive comparison of non trumpet, CMC and coingecko), the four major overseas institutions are currency security, fire currency, coinbase and China currency. If we only talk about domestic exchanges, what the four major exchanges refer to are currency security, fire currency, China currency and okex< So there is no ha ha ha in China
5. I think treasure money is good, also rest assured, the operation is simple, hope to adopt
6. POC and POW are similar in some aspects. Both of them are based on the "computing power" competition between miners, except that POC is based on the computing power of hard disk capacity and POW is based on hash operation. Because of this, POC is no less secure and decentralized than pow. On this basis, POC only needs one percent of pow power consumption to complete the consensus, which is a consensus of clean, environmental protection and universal value. Lava occupies the best track of POC mining + decentralized storage, with huge development space.
7. The listing of coinbase has a certain impact on both bitcoin and US dollar. Coinbase, the world's largest cryptocurrency exchange in the United States, has disclosed its detailed plans to list on NASDAQ. Coinbase guides the adoption of cryptocurrency. Its listing opens an investment portal for institutional investors, enabling them to gain exposure to the cryptocurrency market without buying cryptocurrency. Investors can buy and sell coinbase shares on the stock market just like other listed companies. Therefore, when bitcoin, Ethernet and other cryptocurrency markets are highly valued, the growth of cryptocurrency market will determine the stock market preference of coinbase
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
the Xueshuo innovation blockchain Technology Workstation of Lianqiao ecation online is the only approved "blockchain Technology Specialty" pilot workstation of "smart learning workshop 2020 Xueshuo innovation workstation" launched by the school planning, construction and development center of the Ministry of ecation of China. Based on providing diversified growth paths for students, the professional station promotes the reform of the training mode of the combination of professional degree research, proction, learning and research, and constructs the applied and compound talent training system.
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
the Xueshuo innovation blockchain Technology Workstation of Lianqiao ecation online is the only approved "blockchain Technology Specialty" pilot workstation of "smart learning workshop 2020 Xueshuo innovation workstation" launched by the school planning, construction and development center of the Ministry of ecation of China. Based on providing diversified growth paths for students, the professional station promotes the reform of the training mode of the combination of professional degree research, proction, learning and research, and constructs the applied and compound talent training system.
8.
On April 18, bitcoin, which rose 755% in the past year, fell 17% in the past 24 hours to below $52000. For "in the end, what makes the continuous rise of more than a year of bitcoin instant collapse?" According to market news, the US Treasury Department accused several financial institutions of using cryptocurrency to launder money
the news comes from the twitter account @ fxhhedgers. Minutes after the tweet, the cryptocurrency market began to plummet. Ethereum plummeted 20%, coin an plummeted 17%, reborn plummeted 26%, Dog Coin plummeted 19%, Wright coin plummeted 28%, wave field plummeted 25%, and grapefruit coin plummeted 29%
according to the cointegraph, according to the data of the capital market laboratory and the documents on the coinbase investor relations website, the CEO of coinbase sold the company's shares and cashed out 290 million US dollars, while the insiders cashed out more than 4.6 billion US dollars
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extended information:
bitcoin price will continue to plummet
some experts said frankly that from the reality, virtual currency including bitcoin does not have the function of currency trading in financial settlement systems of various countries. Virtual currency has the property of financial derivatives, and its price trend is also affected by many factors. Sudden regulatory trends, news and public opinion, and major technological changes may make its trading price fluctuate significantly
In addition to the above reasons, another reason is the excessive concentration of virtual currency holders. Virtual currency trading is mainly carried out through the third party, namely the virtual currency exchange, and the trading platform becomes the largest holder, which also makes it possible for the makers to form a group and control the currency trading price9. The bus from Jinan long-distance bus terminal runs once an hour to Jining
the route is generally from Jinan west to Jining expressway, from Jingfu to Qufu, and then to Jining bus terminal (Jining is called South Station)
the route is generally from Jinan west to Jining expressway, from Jingfu to Qufu, and then to Jining bus terminal (Jining is called South Station)
10. Jinan long distance bus station
every hour
bus to Jining
the route is generally Jinan west Expressway
take Jingfu
get off the expressway from Qufu
then to Jining bus station (Jining called South Station)
every hour
bus to Jining
the route is generally Jinan west Expressway
take Jingfu
get off the expressway from Qufu
then to Jining bus station (Jining called South Station)
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