Java bitcoin mining code

1.

bitcoin mining machine is the computer used to earn bitcoin

mining software is the algorithm of bitcoin

the concept of bitcoin was first proposed by Nakamoto on November 1, 2008, and was officially born on January 3, 2009. According to the idea of Nakamoto, the open source software is designed and released, and the P2P network on it is constructed. Bitcoin is a virtual encrypted digital currency in the form of P2P. Point to point transmission means a decentralized payment system

unlike all currencies, bitcoin does not rely on specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses the 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 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. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity

extended data:

bitcoin has the following six characteristics

1. Decentralization: bitcoin is the first distributed virtual currency, the whole network is composed of users, and there is no central bank. Decentralization is the guarantee of bitcoin's security and freedom

2. Worldwide circulation: bitcoin can be managed on any computer connected to the Internet. No matter where you are, anyone can dig, buy, sell or collect bitcoin

3. Exclusive ownership: private key is needed to control bitcoin, which can be stored in any storage medium in isolation. No one can get it except the user himself

4. Low transaction cost: bitcoin can be remitted free of charge, but a transaction fee of about 1 bitfen will be charged for each transaction to ensure faster transaction execution

5, no hidden cost: as a means of payment from a to B, bitcoin has no cumbersome limit of quota and proceres. If you know the other party's bitcoin address, you can pay

6. Cross platform Mining: users can explore the computing power of different hardware on many platforms

source of reference:

network bitcoin mining machine

network bitcoin

2. Sorry
you can't modify this
because this source code records the development process of bitcoin along the way, the problems encountered in the mining process and the mining difficulty
there is open source code to mine, so no one can change it

3. And this: https://github.com/bitcoin/bitcoin

4. Speaking of bitcoin, it can be hot recently. The Internet is discussing this mysterious currency everywhere, even in the economic journal. Newspapers are discussing the feasibility. Bitcoin is popular among computer geeks. These people are yearning for freedom. It is said that when Nakamoto published his paper, bitcoin has become increasingly popular. Many foreign websites and even shopping have accepted bitcoin payment, but domestic ones are relatively few. The value of bitcoin is relatively high now. It is worth more than 300 US dollars and more than 1000 RMB yuan, which is very attractive. But it is just a stock, which goes up and down. It's more risky than special procts. Please be careful when you enter the trade
today, I'll write down my experience and tools in bitcoin exploration. I'm also a novice. I'd like to share with people who love bitcoin
1. Download your bitcoin e-wallet first. There is bitcoin client on the Internet. It doesn't need to be registered. It is bound to your computer by default. After downloading and installing, it will change your network data block. This is enough. I heard that it is to download all the information of network nodes. It's global. How big should it be? I've updated it for several days and finished downloading the data block
bitcoin client interface:
2. The interface is relatively simple. With this client, you can make bitcoin payment and collection. You can see a string of numbers and letters below by clicking on the circle in the figure below. You can the string and send it to others. If you give the bank card account number to others, they can pay. You can click "send currency" and paste the account number sent by others to pay for bitcoin. There is no third party in this process, So it's safe
3. How to mine is also an important way to proce bitcoin. Mining tool is guiminer, it is a green package, that is, folder, do not need security, download it directly decompression can be used, find the icon below, double-click to run
interface:
4. If you have a tool to use, you need to find a good place to proce minerals, that is, a mine pool. Now the output of bitcoin is less and less. If you dig bitcoin, you don't know when and when. If you are a Galaxy series supercomputer, let's talk about it separately. Personal computers can be ignored. There are many mines, But it is known as deepbit, the world's largest mining pool of bitcoin. Its website is
https://deepbit.net/
log in to the website to register an account. Click my account
5, enter my account information, here you can see your miner information, how much bitcoin the account has, C contribution
6, specific settings of my account< br />1、< Your bitcoin address to receive payment: & gt; In the box, enter the address where you accept bitcoin. Don't write it wrong, or you'll be digging for nothing. The picture and text above have said that
2. Minimum value of automatic payment:
set by yourself. When you have so much money in the mine pool, this website will automatically type the money to your bitcoin account address set above. You see, the above settings are important
3 set miners, click Create
New
vorker, Chinese is to create new miners, miners can help your mining workers, you can set more than one, and then excavate in a lot of computers, the effect is more obvious, the income is more rich
write freely on the name, to write in English, foreign things better write in English
write the password by yourself, don't write it too long, it's simple, it's not important
failure detection threshold
(1-3600
minutes):
just write 60,
when the miner doesn't work, send an email notice*<
: choose not decisively, refuse spam,
payment method: choose decisively, pull according to proportion, pay more for more work, which is in line with human development
click the last point
Sava
setting
to save your miner and return to see your miner's information
7. Fill the miner information into the mining tool guiminer,
file - & gt; new
opencl
miner-> Fill in your favorite name - "sever" select deepbit - "user name to fill in the miner's name. Remember to add the miner to your mailbox in the form of your registered account. There is a password on it, you know. Device
is to choose what hardware you use to work, usually with a graphics card. Select the graphics card you want to use. If you can't find it, remember to update the graphics card driver, Then start
mining. You can sit and wait for ore collection. The specific speed depends on your computer configuration
note: there are many ore pools and tools, but I won't introce them to you, just because I use what I said above. Whoever uses knows, there will be a place to speak, and I may not understand others. Be careful, the electricity bill is not enough. If you really have it, you can buy and sell bitcoin on China bitcoin network and exchange it for real gold, right.

5. EGD network generates new EGD through "mining". In essence, the so-called "mining" is to solve a complex mathematical problem with computer to ensure the consistency of EGD network distributed accounting system. EGD network will automatically adjust the difficulty of mathematical problems, so that the whole network can get a qualified answer every 2.5 minutes. Then the EGD network will generate a certain amount of EGD as a reward to reward the person who gets the answer. When EGD was born on January 1, 2014, each reward was 50 EGDS. Two and a half minutes after its birth, the first batch of 50 EGDS were generated, and the total amount of money at this time was 50. Then EGD increased at a rate of about 50 per 2.5 minutes. When the total amount reaches 42 million (50% of 84 million), the bounty will be halved to 25. When the total amount reaches 63 million (21 million new output, or 50% of 4200), the bounty will be further halved to 12.5.

6. Let's put it this way. Seven years ago, it was ok, but now it's not. All the old drivers quit. You didn't know until you saw the virus, did you.

7. This is not very clear. You can check it on the Internet or on the btc123 navigation. I haven't heard of it in the currency circle for such a long time. I don't know the technology and don't pay much attention to it

bitcoin is a consensus network, contributing to a new payment system and a fully digital currency. It is the first decentralized peer-to-peer payment network, which is controlled by its users without a central management organization or middleman. From the user's point of view, bitcoin is much like Internet cash. Bitcoin can also be regarded as the most outstanding three style bookkeeping system.

8. In the past, we used to dig with computers, but later we used to dig with video cards. Now we have to dig with mining machines...

9. It depends on what type of mine you work in:
1. Excavators are not allowed to be used in high gas and double outburst mines (unless they are explosion-proof). These mines can only use excavators on the ground, which is no different from other construction sites
2. If the excavator is used in an ordinary mine, there are more risks: the most important risk is hydrogeology, followed by the risk of roof rock falling (collapse), and the risk of st
3. If it is open-pit coal mine, the biggest risk is st, which will lead to silicosis
it is suggested to choose regular large state-owned mines, and the safety facilities and security of indivial and township small coal mines are not in place.