Difficulty: Bitcoin Difficulty: 711,697,198,174 Estimated Next Difficulty: Adjust time: Hashrate(?): 5,053,301,801 GH/s Block Generation Time(?): Updated: Chart Explained The difficulty.The estimated next difficulty.Average block generation time of 2016 blocks.Block generation time is also known as confirmation time.Average block generation time of 1008 blocks.If grey line less than blue line, The generation time is decreasing.The more grey line is lower than blue line, the faster generation time is decreasing.After 2016 blocks generated, Bitcoin will adjust difficulty to estimated difficulty in order to keep the block generation time at 600 seconds.Difficulty History Date Difficulty Change Hash Rate Jun 17 2017 711,697,198,174 5,094,526,985 GH/s Jun 04 2017 678,760,110,083 4,858,754,124 GH/s May 23 2017 595,921,917,085 4,265,775,241 GH/s May 10 2017 559,970,892,891 4,008,427,786 GH/s Apr 27 2017 521,974,519,554 3,736,439,151 GH/s Apr 13 2017 520,808,749,422 3,728,094,244 GH/s Mar 30 2017 499,635,929,817 3,576,533,297 GH/s Mar 17 2017 475,705,205,062 3,405,230,497 GH/s Mar 03 2017 460,769,358,091 3,298,315,540 GH/s Feb 18 2017 440,779,902,287 3,155,225,442 GH/s Feb 04 2017 422,170,566,884 3,022,014,630 GH/s Jan 22 2017 392,963,262,344 2,812,940,600 GH/s Jan 10 2017 336,899,932,796 2,411,623,656 GH/s Dec 28 2016 317,688,400,354 2,274,102,150 GH/s Dec 15 2016 310,153,855,703 2,220,167,778 GH/s Dec 02 2016 286,765,766,821 2,052,749,317 GH/s Nov 18 2016 281,800,917,193 2,017,209,539 GH/s Nov 05 2016 254,620,187,304 1,822,642,296 GH/s Oct 22 2016 253,618,246,641 1,815,470,125 GH/s Oct 08 2016 258,522,748,405 1,850,577,916 GH/s Sep 25 2016 241,227,200,230 1,726,771,560 GH/s Sep 12 2016 225,832,872,179 1,616,574,667 GH/s Aug 29 2016 220,755,908,330 1,580,232,344 GH/s Aug 15 2016 217,375,482,757 1,556,034,316 GH/s Aug 02 2016 201,893,210,853 1,445,207,896 GH/s Jul 18 2016 213,492,501,108 1,528,238,850 GH/s Jul 04 2016 213,398,925,331 1,527,569,009 GH/s Jun 21 2016 209,453,158,595 1,499,324,110 GH/s Jun 08 2016 196,061,423,940 1,403,462,340 GH/s May 24 2016 199,312,067,531 1,426,731,353 GH/s May 11 2016 194,254,820,283 1,390,530,167 GH/s Apr 28 2016 178,659,257,773 1,278,892,782 GH/s Apr 14 2016 178,678,307,672 1,279,029,147 GH/s Apr 01 2016 166,851,513,283 1,194,369,655 GH/s Mar 18 2016 165,496,835,118 1,184,672,491 GH/s Mar 04 2016 158,427,203,767 1,134,066,098 GH/s Feb 19 2016 163,491,654,909 1,170,318,852 GH/s Feb 07 2016 144,116,447,847 1,031,625,717 GH/s Jan 26 2016 120,033,340,651 859,232,121 GH/s Jan 13 2016 113,354,299,801 811,421,684 GH/s Dec 31 2015 103,880,340,815 743,604,444 GH/s Dec 18 2015 93,448,670,796 668,931,642 GH/s Dec 06 2015 79,102,380,900 566,236,898 GH/s Nov 24 2015 72,722,780,643 520,569,941 GH/s Nov 11 2015 65,848,255,180 471,360,171 GH/s Oct 29 2015 62,253,982,450 445,631,364 GH/s Oct 15 2015 60,883,825,480 435,823,399 GH/s Oct 01 2015 60,813,224,039 435,318,014 GH/s Sep 17 2015 59,335,351,234 424,738,988 GH/s

Jump to: , A quick and dirty mining rig Contents 1 2 3 4 Mining is the process of adding transaction records to Bitcoin's public ledger of past transactions.ganar bitcoins gratis y rapidoThis ledger of past transactions is called the block chain as it is a chain of blocks.steam bitcoin redditThe block chain serves to confirm transactions to the rest of the network as having taken place.paid bitcoin faucet networkBitcoin nodes use the block chain to distinguish legitimate Bitcoin transactions from attempts to re-spend coins that have already been spent elsewhere.bitcoin salman khanMining is intentionally designed to be resource-intensive and difficult so that the number of blocks found each day by miners remains steady.litecoin more secure than bitcoin

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 in-q-telBitcoin uses the hashcash proof-of-work function.ethereum hash powerThe primary purpose of mining is to allow Bitcoin nodes to reach a secure, tamper-resistant consensus.bitcoin mlm scamsMining 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.bitcoin est il une monnaieThis 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 currency available at a rate that resembles the rate at which commodities like gold are mined from the ground.

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 is the measure of how difficult it is to find a new block compared to the easiest it can ever be.It is recalculated every 2016 blocks to a value such that the previous 2016 blocks would have been generated in exactly two weeks had everyone been mining at this difficulty.This will yield, on average, one block every ten minutes.As more miners join, the rate of block creation will go up.As the rate of block generation goes up, the difficulty rises to compensate which will push the rate of block creation back down.

Any blocks released by malicious miners that do not meet the required difficulty target will simply be rejected by everyone on the network and thus will be worthless.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 25 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.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.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 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 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.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 unwise in some countries and setups.Mining contractors provide mining services with performance specified by contract, often referred to as a "Mining Contract".