Bitcoin Mining Guide - Getting started with Bitcoin mining

Bitcoin mining is difficult to do profitably but if you try then this Bitcoin miner is probably a good shot.

How Bitcoin Mining Works

Before you start mining Bitcoin, it's useful to understand what Bitcoin mining really means. Bitcoin mining is legal and is accomplished by running SHA256 double round hash verification processes in order to validate Bitcoin transactions and provide the requisite security for the public ledger of the Bitcoin network. The speed at which you mine Bitcoins is measured in hashes per second.

The Bitcoin network compensates Bitcoin miners for their effort by releasing bitcoin to those who contribute the needed computational power. This comes in the form of both newly issued bitcoins and from the transaction fees included in the transactions validated when mining bitcoins. The more computing power you contribute then the greater your share of the reward.

Step 1 - Get The Best Bitcoin Mining Hardware

Purchasing Bitcoins - In some cases, you may need to purchase mining hardware with bitcoins. Today, you can purchase most hardware on Amazon. You also may want to check the bitcoin charts.

How To Start Bitcoin Mining

To begin mining bitcoins, you'll need to acquire bitcoin mining hardware. In the early days of bitcoin, it was possible to mine with your computer CPU or high speed video processor card. Today that's no longer possible. Custom Bitcoin ASIC chips offer performance up to 100x the capability of older systems have come to dominate the Bitcoin mining industry.

Bitcoin mining with anything less will consume more in electricity than you are likely to earn. It's essential to mine bitcoins with the best bitcoin mining hardware built specifically for that purpose. Several companies such as Avalon offer excellent systems built specifically for bitcoin mining.

Best Bitcoin Cloud Mining Services

Another option is to purchase in Bitcoin cloud mining contracts. This greatly simplifies the process but increases risk because you do not control the actual physical hardware.

Being listed in this section is NOT an endorsement of these services. There have been a tremendous amount of Bitcoin cloud mining scams.

Hashflare Review: Hashflare offers SHA-256 mining contracts and more profitable SHA-256 coins can be mined while automatic payouts are still in BTC. Customers must purchase at least 10 GH/s.

Genesis Mining Review: Genesis Mining is the largest Bitcoin and scrypt cloud mining provider. Genesis Mining offers three Bitcoin cloud mining plans that are reasonably priced. Zcash mining contracts are also available.

Hashing 24 Review: Hashing24 has been involved with Bitcoin mining since 2012. They have facilities in Iceland and Georgia. They use modern ASIC chips from BitFury deliver the maximum performance and efficiency possible.

Minex Review: Minex is an innovative aggregator of blockchain projects presented in an economic simulation game format. Users purchase Cloudpacks which can then be used to build an index from pre-picked sets of cloud mining farms, lotteries, casinos, real-world markets and much more.

Minergate Review: Offers both pool and merged mining and cloud mining services for Bitcoin.

Hashnest Review: Hashnest is operated by Bitmain, the producer of the Antminer line of Bitcoin miners. HashNest currently has over 600 Antminer S7s for rent. You can view the most up-to-date pricing and availability on Hashnest's website. At the time of writing one Antminer S7's hash rate can be rented for $1,200.

Bitcoin Cloud Mining Review: Currently all Bitcoin Cloud Mining contracts are sold out.

NiceHash Review: NiceHash is unique in that it uses an orderbook to match mining contract buyers and sellers. Check its website for up-to-date prices.

Eobot Review: Start cloud mining Bitcoin with as little as $10. Eobot claims customers can break even in 14 months.

MineOnCloud Review: MineOnCloud currently has about 35 TH/s of mining equipment for rent in the cloud. Some miners available for rent include AntMiner S4s and S5s.

Bitcoin Mining Hardware Comparison

Currently, based on (1) price per hash and (2) electrical efficiency the best Bitcoin miner options are:

Bitcoin Mining Hardware Guide

The best Bitcoin mining hardware has evolved dramatically since 2009

At first, miners used their central processing unit (CPU) to mine, but soon this wasn't fast enough and it bogged down the system resources of the host computer. Miners quickly moved on to using the graphical processing unit (GPU) in computer graphics cards because they were able to hash data 50 to 100 times faster and consumed much less power per unit of work.

During the winter of 2011, a new industry sprang up with custom equipment that pushed the performance standards even higher. The first wave of these specialty bitcoin mining devices were easy to use Bitcoin miners were based on field-programmable gate array (FPGA) processors and attached to computers using a convenient USB connection.

FPGA miners used much less power than CPU's or GPU's and made concentrated mining farms possible for the first time.

Today's modern and best bitcoin mining hardware

Application-specific integrated circuit (ASIC) miners have taken over completely. These ASIC machines mine at unprecedented speeds while consuming much less power than FPGA or GPU mining rigs. Several reputable companies have established themselves with excellent products.

Bitcoin Mining Hardware Comparison

Currently, based on (1) price per hash and (2) electrical efficiency the best Bitcoin miner options are:

AntMiner S7

AntMiner S9

Best Bitcoin Mining Hardware

Two major factors go into determining the best bitcoin mining hardware: (1) cost and (2) electricity efficiency.

Bitcoin mining is difficult to do profitably but if you try then this Bitcoin miner is probably a good shot.

ASIC Bitcoin Mining Hardware

Application-specific integrated circuit chips (ASICs) are bitcoin mining hardware created solely to solve Bitcoin blocks. They have only minimal requirements for other normal computer applications. Consequently, ASIC Bitcoin mining systems can solve Bitcoin blocks much quicker and use less less electricity or power than older bitcoin mining hardware like CPUs, GPUs or FPGAs.

As Bitcoin mining increases in popularity and the Bitcoin price rises so does the value of ASIC Bitcoin mining hardware. As more Bitcoin mining hardware is deployed to secure the Bitcoin network the Bitcoin difficulty rises. This makes it impossible to profitably compete without a Bitcoin ASIC system. Furthermore, Bitcoin ASIC technology keeps getting faster, more efficient and more productive so it keeps pushing the limits of what makes the best Bitcoin mining hardware.

Some models of Bitcoin miners include Antminer S5, Antminer U3, ASICMiner BE Tube, ASICMiner BE Prisma, Avalon 2, Avalon 3, BTC Garden AM-V1 616 GH/s, VMC PLATINUM 6 MODULE, and USB miners.

AntMiner U2

BPMC Red Fury USB

GekkoScience

Best Bitcoin Cloud Mining Services

For those not interested in operating the actual hardware then they can purchase Bitcoin cloud mining contracts. Being listed in this section is NOT an endorsement of these services. There have been a tremendous amount of Bitcoin cloud mining scams.

Hashflare Review: Hashflare offers SHA-256 mining contracts and more profitable SHA-256 coins can be mined while automatic payouts are still in BTC. Customers must purchase at least 10 GH/s.

Minergate Review: Offers both pool and merged mining and cloud mining services for Bitcoin.

Bitcoin Cloud Mining Review: Currently all Bitcoin Cloud Mining contracts are sold out.

NiceHash Review: NiceHash is unique in that it uses an orderbook to match mining contract buyers and sellers. Check its website for up-to-date prices.

Eobot Review: Start cloud mining Bitcoin with as little as $10. Eobot claims customers can break even in 14 months.

MineOnCloud Review: MineOnCloud currently has about 35 TH/s of mining equipment for rent in the cloud. Some miners available for rent include AntMiner S4s and S5s.

Bitcoin mining wiki

Bitcoin Core 0.16.0 has been released with default wallet support for segwit.

Bitcoin Core 0.15.1 Released

The latest stable version of Bitcoin Core is now available.

Bitcoin Core 0.15.0.1 Released

Bitcoin Core 0.15.0.1 has been released with a fix for a minor bug causing crashes when upgrading to 0.15.0.

Bitcoin Core 0.15.0 Released

The latest stable version of Bitcoin Core is now available.

Correcting misinformation on Segwit2x and btc1

Introduction

Mining is the process of adding transaction records to Bitcoin's public ledger of past transactions (and a "mining rig" is a colloquial metaphor for a single computer system that performs the necessary computations for "mining". This ledger of past transactions is called the block chain as it is a chain of blocks. The blockchain serves to confirm transactions to the rest of the network as having taken place. Bitcoin nodes use the blockchain to distinguish legitimate Bitcoin transactions from attempts to re-spend coins that have already been spent elsewhere.

Mining is intentionally designed to be resource-intensive and difficult so that the number of blocks found each day by miners remains steady. Individual blocks must contain a proof of work to be considered valid. This proof of work is verified by other Bitcoin nodes each time they receive a block. Bitcoin uses the hashcash proof-of-work function.

The primary purpose of mining is to set the history of transactions in a way that is computationally impractical to modify by any one entity. By downloading and verifying the blockchain, bitcoin nodes are able to reach consensus about the ordering of events in bitcoin.

Mining is also the mechanism used to introduce Bitcoins into the system: Miners are paid any transaction fees as well as a "subsidy" of newly created coins. This both serves the purpose of disseminating new coins in a decentralized manner as well as motivating people to provide security for the system.

Bitcoin mining is so called because it resembles the mining of other commodities: it requires exertion and it slowly makes new units available to anybody who wishes to take part. An important difference is that the supply does not depend on the amount of mining. In general changing total miner hashpower does not change how many bitcoins are created over the long term.

Difficulty

The Computationally-Difficult Problem

Mining a block is difficult because the SHA-256 hash of a block's header must be lower than or equal to the target in order for the block to be accepted by the network. This problem can be simplified for explanation purposes: The hash of a block must start with a certain number of zeros. The probability of calculating a hash that starts with many zeros is very low, therefore many attempts must be made. In order to generate a new hash each round, a nonce is incremented. See Proof of work for more information.

The Difficulty Metric

The difficulty is the measure of how difficult it is to find a new block compared to the easiest it can ever be. The rate is recalculated every 2,016 blocks to a value such that the previous 2,016 blocks would have been generated in exactly one fortnight (two weeks) had everyone been mining at this difficulty. This is expected yield, on average, one block every ten minutes.

As more miners join, the rate of block creation increases. As the rate of block generation increases, the difficulty rises to compensate, which has a balancing of effect due to reducing the rate of block-creation. Any blocks released by malicious miners that do not meet the required difficulty target will simply be rejected by the other participants in the network.

When a block is discovered, the discoverer may award themselves a certain number of bitcoins, which is agreed-upon by everyone in the network. Currently this bounty is 12.5 bitcoins; this value will halve every 210,000 blocks. See Controlled Currency Supply.

Additionally, the miner is awarded the fees paid by users sending transactions. The fee is an incentive for the miner to include the transaction in their block. In the future, as the number of new bitcoins miners are allowed to create in each block dwindles, the fees will make up a much more important percentage of mining income.

The mining ecosystem

Users have used various types of hardware over time to mine blocks. Hardware specifications and performance statistics are detailed on the Mining Hardware Comparison page.

CPU Mining

Early Bitcoin client versions allowed users to use their CPUs to mine. The advent of GPU mining made CPU mining financially unwise as the hashrate of the network grew to such a degree that the amount of bitcoins produced by CPU mining became lower than the cost of power to operate a CPU. The option was therefore removed from the core Bitcoin client's user interface.

GPU Mining

GPU Mining is drastically faster and more efficient than CPU mining. See the main article: Why a GPU mines faster than a CPU. A variety of popular mining rigs have been documented.

FPGA Mining

FPGA mining is a very efficient and fast way to mine, comparable to GPU mining and drastically outperforming CPU mining. FPGAs typically consume very small amounts of power with relatively high hash ratings, making them more viable and efficient than GPU mining. See Mining Hardware Comparison for FPGA hardware specifications and statistics.

ASIC Mining

An application-specific integrated circuit, or ASIC, is a microchip designed and manufactured for a very specific purpose. ASICs designed for Bitcoin mining were first released in 2013. For the amount of power they consume, they are vastly faster than all previous technologies and already have made GPU mining financially.

Mining services (Cloud mining)

Mining contractors provide mining services with performance specified by contract, often referred to as a "Mining Contract." They may, for example, rent out a specific level of mining capacity for a set price at a specific duration.

As more and more miners competed for the limited supply of blocks, individuals found that they were working for months without finding a block and receiving any reward for their mining efforts. This made mining something of a gamble. To address the variance in their income miners started organizing themselves into pools so that they could share rewards more evenly. See Pooled mining and Comparison of mining pools.

Bitcoin's public ledger (the "block chain") was started on January 3rd, 2009 at 18:15 UTC presumably by Satoshi Nakamoto. The first block is known as the genesis block. The first transaction recorded in the first block was a single transaction paying the reward of 50 new bitcoins to its creator.

Mining hardware comparison

Below are statistics about the Bitcoin Mining performance of ASIC hardware and only includes specialized equipment that has been shipped.

GPUs, CPUs and other hardware not specifically designed for Bitcoin mining can be found in the Non-specialized_hardware_comparison.

Mhash/s = millions hashes per second (double sha256 raw speed performance; may not be very energy efficient with some models)
Mhash/J = millions hashes per joule (energy efficiency; 1 joule of energy is 1 watt during 1 second: 1 J = 1 W*s)
W = watt (maximum power consumption, i.e. energy per unit of time: 1 W = 1 J/s)

Be sure to research any of these vendors and machines intensely before spending any money.

US Search Mobile Web

Welcome to the Yahoo Search forum! We’d love to hear your ideas on how to improve Yahoo Search.

The Yahoo product feedback forum now requires a valid Yahoo ID and password to participate.

You are now required to sign-in using your Yahoo email account in order to provide us with feedback and to submit votes and comments to existing ideas. If you do not have a Yahoo ID or the password to your Yahoo ID, please sign-up for a new account.

If you have a valid Yahoo ID and password, follow these steps if you would like to remove your posts, comments, votes, and/or profile from the Yahoo product feedback forum.

Vote for an existing idea ( )
or
Post a new idea…

Hot ideas
Top ideas
New ideas
Category
Status
My feedback

Improve your services

Your search engine does not find any satisfactory results for searches. It is too weak. Also, the server of bing is often off

I created a yahoo/email account long ago but I lost access to it; can y'all delete all my yahoo/yahoo account except for my newest YaAccount

I want all my lost access yahoo account 'delete'; Requesting supporter for these old account deletion; 'except' my Newest yahoo account this Account don't delete! Because I don't want it interfering my online 'gamble' /games/business/data/ Activity , because the computer/security program might 'scure' my Information and detect theres other account; then secure online activities/ business securing from my suspicion because of my other account existing will make the security program be 'Suspicious' until I'm 'secure'; and if I'm gambling online 'Depositing' then I need those account 'delete' because the insecurity 'Suspicioun' will program the casino game 'Programs' securities' to be 'secure' then it'll be 'unfair' gaming and I'll lose because of the insecurity can be a 'Excuse'. Hope y'all understand my explanation!

chithidio@Yahoo.com

i dont know what happened but i can not search anything.

Golf handicap tracker, why can't I get to it?

Why do I get redirected on pc and mobile device?

Rahyaftco@yahoo.com

RYAN RAHSAD BELL literally means

Question on a link

In the search for Anaïs Nin, one of the first few links shows a picture of a man. Why? Since Nin is a woman, I can’t figure out why. Can you show some reason for this? Who is he? If you click on the picture a group of pictures of Nin and no mention of that man. Is it an error?

Repair the Yahoo Search App.

Yahoo Search App from the Google Play Store on my Samsung Galaxy S8+ phone stopped working on May 18, 2018.

I went to the Yahoo Troubleshooting page but the article that said to do a certain 8 steps to fix the problem with Yahoo Services not working and how to fix the problem. Of course they didn't work.

I contacted Samsung thru their Samsung Tutor app on my phone. I gave their Technican access to my phone to see if there was a problem with my phone that stopped the Yahoo Search App from working. He went to Yahoo and I signed in so he could try to fix the Yahoo Search App not working. He also used another phone, installed the app from the Google Play Store to see if the app would do any kind of search thru the app. The Yahoo Search App just wasn't working.

I also had At&t try to help me because I have UVERSE for my internet service. My internet was working perfectly. Their Technical Support team member checked the Yahoo Search App and it wouldn't work for him either.

We can go to www.yahoo.com and search for any topic or website. It's just the Yahoo Search App that won't allow anyone to do web searches at all.

I let Google know that the Yahoo Search App installed from their Google Play Store had completely stopped working on May 18, 2018.

I told them that Yahoo has made sure that their Yahoo members can't contact them about anything.

I noticed that right after I accepted the agreement that said Oath had joined with Verizon I started having the problem with the Yahoo Search App.
No matter what I search for or website thru the Yahoo Search App it says the following after I searched for
www.att.com.

WEBPAGE NOT AVAILABLE
This webpage at gttp://r.search.yahoo.com/_ylt=A0geJGq8BbkrgALEMMITE5jylu=X3oDMTEzcTjdWsyBGNvbG8DYmyxBHBvcwMxBHZ0aWQDTkFQUEMwxzEEc2VjA3NylRo=10/Ru=https%3a%2f%2fwww.att.att.com%2f/Rk=2/Es=plkGNRAB61_XKqFjTEN7J8cXA-
could not be loaded because:
net::ERR_CLEARTEXT_NOT_PERMITTED

I tried to search for things like www.homedepot.com. The same thing happened. It would say WEBPAGE NOT AVAILABLE. The only thing that changed were all the upper and lower case letters, numbers and symbols.
Then it would again say
could not be loaded because:
net::ERR_CLEARTEXT_NOT_PERMITTED

This is the same thing that happened when Samsung and At&t tried to do any kind of searches thru the Yahoo Search App.

Yahoo needs to fix the problem with their app.

Yahoo Search App from the Google Play Store on my Samsung Galaxy S8+ phone stopped working on May 18, 2018.

I went to the Yahoo Troubleshooting page but the article that said to do a certain 8 steps to fix the problem with Yahoo Services not working and how to fix the problem. Of course they didn't work.

Mining hardware

Eine Auflistung der gängisten Hardware 10-20% performance können durch übertakten erreicht werden.

Mhash/s = millions hashes pro sekunde
Mhash/J = millions hashes pro watt
W = watt (maximaler Strom input)
Clock (in MHz) refers to the Shader clock only with nVidia cards (not Core or Memory). With AMD card the shader clock is not separate, but is part of the GPU clock.
SP = Stream processors (Shader Units)

Inhaltsverzeichnis

Graphics cards

To get the maximum performance use the 2.1 release of the ATI Stream SDK. 2.2 wastes CPU time, and 2.3/2.4 drop mining performance by 5-10% unless using the Phoenix phatk kernel. Note: This statement is not entirely accurate. YMMV.

Bitcoin mining wiki

Welcome to the Bitcoin Wiki Edit

This is a wiki where everyone can edit in contrast to other Bitcoin wikis where you have to pay Bitcoin in order to contribute and/or edit.

What is Bitcoin? Edit

Bitcoin software Edit

Electrum (wiki space free. If you have an idea or information to add about Electrum, feel free to!)

Securing Bitcoins Edit

Any practical info on storing Bitcoins with multiple signatures that are bound to a single Bitcoin address required to spend them, is welcome in the Specific software or implementations section.
- Bitcoin Stack Exchange

Specific software or implementations Edit

Is this relevant? I browsed a GitHub repository page by greenaddress, but I got lost.

Why Use Bitcoins? Edit

Low or Negligible Transfer Fees Edit

When paying a friend through typical online services, it can typically cost upwards of 2.5% + $0.50 in fees. This means, when you digitally pay your buddy $100, it will cost $3 more. Or, if you purchase something for $25,000, it will cost an extra $625.50. That is a lot of wasted money in fees. With Bitcoin, you can pay flat near-zero transaction fees that can be as low as a $0.01 depending on how fast you want the transaction to complete.

Speed and Global Reach Edit

You can pay someone in India or London just as easily as someone in Argentina or Hong Kong. Bitcoin is completely global and works over the internet.

Security and Privacy Edit

Payment "push" rather than "pull". That is, with credit cards, when you hand the merchant your card they can extract as much as they want. With Bitcoin, you send an exact amount to a merchant, and they have no power to pull out more from your account. You do not need to provide your name, address, phone number, and other private information when making a purchase through Bitcoin (although some merchants may still force you, it is not a part of Bitcoin itself). You can pay your friends, peers, co-workers without a commercial 3rd party (like PayPal), which also means lower negligible fees.

Note: Wallet-to-wallet transfer data (transaction address + amount) is public. However, this information is not tied to your name unless you somehow provide it.

Sound Money Edit

Bitcoin has all the implications of sound money, which includes the idea that many global problems come from money corruption and spending. Bitcoin is not government-controlled money. It is open-source, peer-to-peer, decentralized money, which means it's money for the people by the people. Bitcoins are created through a difficult "mining" process which is regulated by the physical capabilities of computers. It cannot be arbitrarily created, such as with government currency inflation.

Where to Buy Bitcoins Edit

Circle
Coinbase
CoinCorner
Localbitcoins
Mycelium Local Trader (Mobile Phone App)
Bitstamp
Vault of Satoshi
Bitcoin in Pakistan
Zumminer

Where to Spend Bitcoins (What can I buy with Bitcoin?) Edit

Major Online Businesses (Direct) Edit

Small Online Businesses (Direct) Edit

Major B&M Businesses (Direct) Edit

Nothing (yet)

Small B&M Businesses (Direct) Edit

See Local Bitcoin Map

Major Businesses (Indirect, e.g. through Gift Cards purchased with Bitcoin) Edit

You can go to Bitcoin-friendly gift card merchants such as Gyft and eGifter for a full list.

Amazon
Walmart
Target
CVS
Whole Foods
Banana Republic
1-800 Flowers
American Airlines
Best Buy
Burger King
Hyatt
Kohl's
Victoria's Secret
Papa John's Pizza
Zappos

International list of shops Edit

Bonus Programs Edit

While the best way to earn bitcoin is to mine it, buy it, or exchange goods and service, there are also plenty of way to aquire "free" bitcoins via bonus programs, such as:

Litecoin is a peer-to-peer Internet currency that enables instant, near-zero cost payments to anyone in the world. Litecoin is an open source, global payment network that is fully decentralized. Mathematics secures the network and empowers individuals to control their own finances.

Compared to Bitcoin, Litecoin features faster transaction confirmation times (2.5 minutes) and improved storage efficiency.

With substantial industry support, trade volume, and liquidity, Litecoin is a proven medium of commerce complementary to Bitcoin. Litecoin is the second most popular cryptocurrency.

For more information, visit the Litecoin page.

Bitcoin Mining Hardware Guide

The best Bitcoin mining hardware has evolved dramatically since 2009

FPGA miners used much less power than CPU's or GPU's and made concentrated mining farms possible for the first time.

Today's modern and best bitcoin mining hardware