Can blockchain be bought into money

1. Yes, now you can buy a miner to dig bitcoin
but what I want to emphasize is that bitcoin mining is now a very professional instry. Although ordinary people can dig, the cost is much higher than that of professional mining, so it's better to buy money directly.

2. 1. I've seen and used the first imtoken. Every year, imtoken loses money, and every time it says that it is a decentralized wallet. It sounds like a shirking of responsibility and decisively unloading
2. I haven't heard of the second one. I guess it's a small wallet from somewhere. I might run away one day
3. Some exchanges provide channels for exchange. You call customer service, customer service will teach you. You can try ZB
- above. If you have any questions, please leave a message. DFG (Digital finance group) is committed to popularizing blockchain related knowledge, delivering the latest blockchain instry information and sharing interesting stories about blockchain.

3.

The explosive blockchain gives people unlimited fantasy. When many people think about the benefits of blockchain, one of its problems has aroused people's concern, that is, security. Some time ago, 360 discovered a high-risk vulnerability in the blockchain, which can control all the nodes on the EOS. We all know that 51% of the nodes in the blockchain can tamper with the data, let alone 100%. Let's see what's going on

On May 29, 360 Vulcan team announced that it had discovered a series of high-risk security vulnerabilities of EOS platform. It is verified that some of the vulnerabilities can remotely execute arbitrary code on EOS nodes, that is, they can directly control and take over all nodes running on EOS through remote attacks. For more details, please click

4. 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

5. If you want to ask what's the most popular in 2018, I believe you will say it's blockchain

since last year, a variety of digital currencies have emerged in an endless stream, and blockchain has also been on fire

many people are connected with blockchain as soon as they mention currency speculation; As soon as you hear that an enterprise is doing a blockchain, you will immediately ask if you want to issue money

it seems that blockchain is equivalent to digital currency, and the purpose of studying blockchain is to speculate in currency< br />


1

when you are new to blockchain or digital currency, it is reasonable to equate blockchain with currency speculation

after all, if it wasn't for the growing popularity of bitcoin, no one might have paid attention to blockchain technology so far. If it wasn't for more and more people investing in bitcoin, no institution would have issued a variety of other digital currencies

however, after in-depth understanding of blockchain and digital currency, we still think that blockchain is money speculation, so our understanding is really a bit biased

blockchain is the underlying technology of bitcoin. No matter bitcoin, Ethereum, lightcoin or other various tokens, they are all applications based on blockchain technology

but this does not mean that the blockchain can only be used to issue money, just like fish is raised in the water, but it can not be said that fish is water, and hairy crabs and crayfish can grow in the water

in addition to the various tokens we see at present, blockchain has a very broad application prospect

2

so what is a blockchain

to put it clearly, blockchain is: "blockchain is a kind of technical mole or encryption algorithm that is both basic application and top-level design. It breaks the barrier that an information is only saved by one central server or multiple services in the past, and copies the same information to more places at the same time, such as 1 million servers. Only when more than half of the stored information has been tampered with can chaos be caused. "

in a word, understand the relationship between bitcoin and blockchain:

blockchain is a technical concept born from bitcoin encryption technology

bitcoin is a kind of digital virtual currency, followed by the payment currency as a contribution to storage computing power

if you want to store the same information in countless servers, who will store it for free? There has to be a reward. Bitcoin is a reward for accepting free storage. This reward is a virtual thing called bitcoin.

6.

Many friends are unfamiliar with bitcoin's computing power, bitcoin's mining machinery, mines and mining returns. Let's take a look at the operation mechanism between bitcoin and blockchain records in detail. First of all, what is blockchain? We can think of it as a distributed ledger and a corresponding credit network. In this network, everyone's behavior can be recorded on the chain, and it supports verification and retrospective investigation. Multiple chains are combined to form a block. We call it a miner who is responsible for recording this information on the chain

so, seeing here, I believe you can understand what is bitcoin's computing power and what is bitcoin's mining? In addition, the current mines are basically monopolized by large institutions, or the so-called entry threshold is very high. There is no investment of several million yuan or tens of millions of yuan. Basically, they are retail investors in the current bitcoin mining instry, and retail miners often give up mining because of the large fluctuation of computing power and the rise of electricity cost< br />

7. Of course, it's against the law, but if we can't catch it, it's against the law just like the thief, but there are so many thieves. It's bad luck to catch him. There are many people who haven't caught him. We should be more vigilant

8. It's called coal mining mode.
coal mining mode is: coal mining is for Samsung's special Odin tool, and other brands of mobile phones have similar modes, but the name is different. HTC has HBOOT, and motorcycle has RSD mode. Samsung's coal mining mode is called because its interface icon is just like Android, so it's nicknamed "coal mining". The coal digging artifact is a fast coal digging tool designed by Samsung, which has a problem with the boot and can't enter the coal digging machine normally. It is commonly known as "lock three keys". It is also one of the tools to save bricks. Generally, if you can dig coal, you will be saved.

How do you enter the coal mining mode http://www.ecity.cn/it/337861.html

9. Yes, it can be changed into Hong Kong dollars. Yes, there is no problem at all.