Virtual currency side chain
Publish: 2021-04-03 13:06:31
1. 99% of them are deceiving. It's deceiving to say how much it will appreciate. It's just a technology, its application is valuable.
2. Quantum chain: quantum, a troublemaking project, launches satellites and cooperates with braised pork. Recently, it has not performed well and has not been able to break through 100. In the previous comments, it was also said that as China's Ethereum, quantum breaking through 100 is only a matter of time< Qash: in the last two days, the cost price is 1.6 yuan, which is over 9 yuan today. We log on to Hong Kong B website as scheled. The crowdfunding ended on November 8. Today, it's only 20 days, and the profit is 5 times. If converted into annual income, it's 8038%< BTM: it's a good project, Babbitt's son, but it's still stable when everything else is soaring recently. I hope his flying is based on the progress and value of the project, so that he can have confidence. Let's wait until next year
EOS: once EOS flies, it's like a runaway Mustang. It's only a short time from 4 yuan to 21 yuan. Projects like EOS may be beyond imagination, but after all, they are still in the process of development, and the overall market is warm and cold, so it's inevitable for them to fluctuate in the middle
HSR: the momentum of HSR is insufficient. Martians are still sparing no effort in its operation. Community promotion has been launched in an orderly manner. It's landing on fire coin immediately. Foreign countries are also pushing forward and making trouble with quantum. It can be said that the good news of braised pork has never stopped. Give him some time to gather energy. The current price is not the first price, but it's impossible to break through thousands by the end of the year. If there is a forecasting market platform, Can we make a prediction, will Martians eat Xiang
WKC player currency: Recently, many newcomers have entered the currency circle because of this currency. Now there is internal strife. The stock price of Xunlei and WKC are falling. When regular listed companies participate in such a hype market, there is a big policy risk behind it. Moreover, it is said that the computing power of player cloud has been changed and the mining efficiency has declined, An asset similar to Q currency is not optimistic about long-term development
miner's nest mall, sharing miner's machines, only need deposit and return with borrowing. Zero cost at all. Let you empty handed set a batch of bitcoin back, zero threshold experience mining real income.
EOS: once EOS flies, it's like a runaway Mustang. It's only a short time from 4 yuan to 21 yuan. Projects like EOS may be beyond imagination, but after all, they are still in the process of development, and the overall market is warm and cold, so it's inevitable for them to fluctuate in the middle
HSR: the momentum of HSR is insufficient. Martians are still sparing no effort in its operation. Community promotion has been launched in an orderly manner. It's landing on fire coin immediately. Foreign countries are also pushing forward and making trouble with quantum. It can be said that the good news of braised pork has never stopped. Give him some time to gather energy. The current price is not the first price, but it's impossible to break through thousands by the end of the year. If there is a forecasting market platform, Can we make a prediction, will Martians eat Xiang
WKC player currency: Recently, many newcomers have entered the currency circle because of this currency. Now there is internal strife. The stock price of Xunlei and WKC are falling. When regular listed companies participate in such a hype market, there is a big policy risk behind it. Moreover, it is said that the computing power of player cloud has been changed and the mining efficiency has declined, An asset similar to Q currency is not optimistic about long-term development
miner's nest mall, sharing miner's machines, only need deposit and return with borrowing. Zero cost at all. Let you empty handed set a batch of bitcoin back, zero threshold experience mining real income.
3. 1. RSK bitcoin side chain, more intelligent bitcoin
2. Dfinity self evolution "infinite chain" computing, Ethereum competitors
3. Ont ontology network, Fosun Group ten million yuan level
4. Oracle of BLZ blockchain ecosystem
5. Go net work Ethereum network mobile infrastructure
6. Orchid protocol bypasses firewall and communicates freely
7 Lightning network on Trinity ant
8, wtss smart wallet
9, zilliqa
10, rchain
11, Cybex's decentralized trading platform based on EOS
12, early investment in investdigital coin capital
13, IHT cloud coin, entrepreneurial team from Morgan, IBM, Deloitte, Internet Microsoft
14, theta streaming media infrastructure, American version of traffic ore
15, realchain high-end consumer goods and collectibles identification data center
the key is to keep faith[ [coin an community]
2. Dfinity self evolution "infinite chain" computing, Ethereum competitors
3. Ont ontology network, Fosun Group ten million yuan level
4. Oracle of BLZ blockchain ecosystem
5. Go net work Ethereum network mobile infrastructure
6. Orchid protocol bypasses firewall and communicates freely
7 Lightning network on Trinity ant
8, wtss smart wallet
9, zilliqa
10, rchain
11, Cybex's decentralized trading platform based on EOS
12, early investment in investdigital coin capital
13, IHT cloud coin, entrepreneurial team from Morgan, IBM, Deloitte, Internet Microsoft
14, theta streaming media infrastructure, American version of traffic ore
15, realchain high-end consumer goods and collectibles identification data center
the key is to keep faith[ [coin an community]
4.
There are two relations between bitcash and bitcoin: bitcash is the bifurcated and competitive currency of bitcoin{ RRRRR}
Second, competitive currency. As the name suggests, they are two competing currencies. It is just like the competition of two kinds of homogeneous goods in the market, competing for market share. In the virtual digital currency market, the market share is so large that more people hold one kind of currency, the number of people holding another kind of currency will be relatively reced, forming a competitive relationship between you and me
in these two relationships, competitive currency is easier to understand, while forked currency is more difficult because it is a technical problem
is the relationship between the two currencies clear now
5. 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
6. Generally, blockchain, especially public chain, has main network and test network. The main network is a trusted blockchain network recognized by the blockchain community, and its transaction information is recognized by all members. Effective blocks will be added to the block ledger of the main network after the consensus of the blockchain network
many people don't understand what side chain is. This concept comes from bitcoin community and was put forward in December 2013. There are some problems with the birth of bitcoin itself or the mechanism of a blockchain itself. But if you modify bitcoin protocol or chain directly, it is easy to make mistakes. Moreover, because the bitcoin block has been operating continuously, if it is wrong, the amount of funds involved will be very large, which is not allowed
in fact, sidechains do not refer to a particular blockchain, but to all blockchains that comply with the side chain protocol. This term is relative to the main chain of bitcoin
for more information, what is a side chain
many people don't understand what side chain is. This concept comes from bitcoin community and was put forward in December 2013. There are some problems with the birth of bitcoin itself or the mechanism of a blockchain itself. But if you modify bitcoin protocol or chain directly, it is easy to make mistakes. Moreover, because the bitcoin block has been operating continuously, if it is wrong, the amount of funds involved will be very large, which is not allowed
in fact, sidechains do not refer to a particular blockchain, but to all blockchains that comply with the side chain protocol. This term is relative to the main chain of bitcoin
for more information, what is a side chain
7. LF supports multi-level side chain, and token is used as the main token of side chain for value circulation on all side chains. There is circulation between the side chain and the main chain, and the asset side chain is connected to the main chain. Aelf reshapes the structure between chains. The structure of eth is similar to series connection, and the solution of aelf is to change "series connection" to "parallel connection". The so-called "parallel connection" is a main chain, and then connect each branch chain on the N side. This is what the aelf team calls "mother union + n side chain Multi Chain" structure.
8.
Meituan belongs to BTC type
BTC (business to customer) is one of the categories of e-commerce according to the trading partners, which means the e-commerce of commercial institutions to consumers
this form of e-commerce is generally based on online retail instry, mainly relying on the Internet to carry out online sales activities
BTC is also called B2C. B2C mode is the earliest e-commerce mode in China 
extended information:
the payment method of B2C e-commerce is the combination of cash on delivery and online payment, while most enterprises choose logistics outsourcing to save operating costs
with the change of users' consumption habits and the promotion of excellent enterprise demonstration effect, the number of online shopping users is increasing. In addition, some large-scale examinations such as the civil service examination also began to implement B2C mode
its basic needs include user management needs, customer needs and vendor needs
user management requirements: user registration and user information management
customer needs: provide electronic directory to help users search and find the goods they need
compare similar procts to help users make purchase decisions
evaluate goods, add shopping cart, place order, cancel and modify order
be able to pay online; Track the status of the order
seller's needs: check the customer's registration information
process customer orders
complete the settlement of procts purchased by customers and process customer payment
be able to publish commodity information, publish and manage online advertising
establish an interface with the bank for electronic auction
inventory management
establish interface with logistics distribution system
be able to track proct sales
to achieve customer relationship management
provide after-sales service
9. Bitcoin is proced by mining. Mining is the process of consuming computing resources to process transactions, ensuring network security and keeping everyone's information synchronized in the network. It can be understood as the data center of bitcoin. The difference lies in its completely decentralized design. Miners operate all over the world, and no one can control the network. This process is called "mining" because it is similar to gold panning, because it is also a temporary mechanism for issuing new bitcoin. However, unlike gold panning, bitcoin mining provides rewards for services that ensure the safe operation of payment networks. After the last bitcoin, mining is still necessary
network nodes are miners all over the world mining
only full node clients like bitcoin core need longer synchronization time. Technically, synchronization is a process of downloading and verifying all previous bitcoin transactions on the network. Some bitcoin clients need to know all previous transactions to calculate the available balance of your bitcoin wallet and complete new transactions. This step consumes a lot of resources and needs enough bandwidth and space to store the whole block chain. In order to maintain the security of bitcoin, enough users need to use the full node client, because they play the role of confirmation and relay transactions.
network nodes are miners all over the world mining
only full node clients like bitcoin core need longer synchronization time. Technically, synchronization is a process of downloading and verifying all previous bitcoin transactions on the network. Some bitcoin clients need to know all previous transactions to calculate the available balance of your bitcoin wallet and complete new transactions. This step consumes a lot of resources and needs enough bandwidth and space to store the whole block chain. In order to maintain the security of bitcoin, enough users need to use the full node client, because they play the role of confirmation and relay transactions.
Hot content