59 How is difficulty calculated? 2012-12-18T18:30:56.720

52 What keeps the average block time at 10 minutes? 2011-09-10T17:30:48.390

44 Can bitcoin exist without miners? 2017-12-25T16:55:58.810

31 Do these new ASIC miners really pay for themselves in 5 days? 2013-04-04T21:38:32.443

23 What is "difficulty" and how it relates to "target"? 2013-03-28T12:06:00.050

23 How does the Kimoto Gravity Well regulate difficulty? 2014-02-06T12:04:16.813

19 What does the mining difficulty number really mean? 2014-03-05T16:41:19.813

18 Can casual people still mine for bitcoins, now that the difficulty is much higher than it was? 2012-10-12T08:40:44.350

18 Relationship between Hash-Rate and Difficulty 2012-11-30T18:35:56.870

16 How to calculate new "bits" value? 2012-02-14T23:36:26.567

15 What happens if hash rate decreases rapidly? 2011-08-31T15:48:56.010

15 Why can't they use super computers to mine all the bitcoins? 2014-06-30T17:14:27.030

14 Is there empirical data about a relationship between bitcoin price and difficulty? 2011-09-02T08:13:29.347

14 How many Integer Operations on a GPU are necessary for one Hash? 2011-09-28T20:03:59.093

12 Is it possible for the network to stop finding valid blocks? 2013-04-18T06:56:53.250

10 What is the ecological effect of increased work for the Bitcoin chain? 2012-01-07T03:27:07.590

10 Is there a maximum factor by which difficulty can change? 2012-06-22T23:49:54.983

9 Reduce difficulty on testnet-in-a-box? 2012-03-05T04:41:12.363

9 Can more than 1 block be solved per 10 mins on average (LONG TERM)? 2012-07-29T01:34:51.360

9 Why invest in mining hardware if the difficulty continues to climb at an exponential rate? 2013-11-19T03:49:14.763

8 Will expensive mining equipement have any worth in the future? 2013-10-10T00:32:32.760

8 Why is target stored in the block at all? 2016-04-23T01:05:24.143

8 How many zeroes does the current target have? 2016-05-15T14:32:15.320

7 How does one know they solved a block? 2011-12-02T10:02:01.173

7 Calculating average number of hashes tried before hitting a valid block 2012-08-27T07:05:58.803

7 How does a difficulty increase affect a miner's income? 2013-11-10T19:30:24.783

7 Where exactly is the "off-by-one" difficulty bug? 2014-01-15T13:44:38.087

7 Why does Bitcoin not have faster downward difficulty adjustments? 2017-08-22T22:34:38.273

6 Is there a uniform measure of "difficulty", that when multiplied by price, will give "profitability of one hour of mining"? 2011-10-09T17:46:55.333

6 How can I find the "real" difficulty on testnet? 2013-12-11T23:32:56.167

6 How is the target section of a block header calculated? 2014-03-24T06:12:34.450

6 How is a block header hash compared to the target (bits)? 2016-06-01T19:36:08.517

6 Why was the maximum target set to 0xffff0000000...? 2017-01-18T14:05:24.493

5 Does difficulty ever stop increasing? 2013-04-18T04:07:34.073

5 How many shares need to be mined before a block is released? 2013-05-29T10:48:01.290

5 Why would a miner mine with a difficulty other than 'the' difficulty? 2013-07-10T08:01:12.943

5 Why is mining difficulty increasing? 2014-03-06T06:13:39.650

5 Bitcoin value vs. Supercomputing 2014-05-09T15:56:04.267

5 When will next halving events occur? 2014-09-01T22:44:50.180

5 Why didn't the difficulty adjust for the first 30,240 blocks? 2016-08-18T15:29:12.500

5 How does mining process takes Approximately 10 minutes? 2017-03-01T22:28:43.583

5 Creating Mining Competition on regtest 2017-07-13T10:57:09.723

5 How does solving reduced difficulty hashes contribute to solving a block? 2017-07-16T05:58:32.013

5 When will the Bitcoin Cash difficulty adjust next? 2017-08-04T10:40:06.117

5 Why is it harder to compute nonce for a hash with a certain number zero prefixes than it is for any other hash? 2017-08-06T05:29:48.430

5 How to select minimum difficulty when mining with Slush Pool 2017-10-15T07:25:17.450

5 If ASIC based machines can run at 14TH/s, why isn't the answer found almost immediately? 2017-11-07T03:07:18.383

5 How is nbits calculated? 2018-01-25T06:45:40.343

4 Web API to retrieve difficulty changes 2011-11-30T07:43:49.463

4 What is the highest recorded difficulty in the main net? 2012-05-05T20:28:47.040

4 How to convert Litecoin difficulty of 6 to an expected time per block solved? 2012-07-19T23:03:11.820

4 Does variability of block solution time change as difficulty increases? 2012-09-10T19:16:12.933

4 Is there a chart that shows Mhps mint speed over time? 2012-09-15T00:44:41.507

4 Bitcoin inflation in 9/12 doesn't seem to have been corrected. Why not and will it be fixed? 2012-11-19T17:54:32.673

4 Litecoin difficulty and reward 2013-04-01T10:02:23.637

4 How is the probability of winning a block calculated from the difficulty? 2013-04-30T00:11:14.883

4 What is the hash-rate of the Bitcoin network that results in the maximum difficulty? 2013-05-21T14:55:35.053

4 How does a share help in the discovery of a new block? 2013-05-27T07:40:07.190

4 how exactly was the original coefficient for difficulty determined? 2013-10-16T07:02:32.490

4 Why is average time for block 8 minutes, when the target is recomputed to keep it 10 minutes? 2013-11-30T08:43:31.623

4 Is the idea of a "honey hole" such as in gold mining, present in bitcoin mining? 2013-12-03T05:20:40.393

4 Why is the reward decreasing while the difficulty of mining is increasing? 2013-12-16T09:04:35.333

4 How was the new target for block 32256 calculated? 2014-02-23T19:05:56.633

4 How Does Network Difficulty Relate to the Odds of Finding a Block? 2015-01-01T03:04:53.147

4 Why is the difficulty adjustment restricted to a factor of 4? 2015-04-03T10:25:29.117

4 Is it possible to build mining reward pooling directly into Bitcoin? 2016-06-16T12:07:42.783

4 How can I forecast the date Bitcoin will hit a certain blockheight? 2016-06-26T03:32:21.960

4 where is difficulty target inserted? 2016-10-17T19:17:04.300

4 Is there a rationale for the compact representation of the target? 2017-08-04T02:51:57.290

4 Attack vectors for difficulty retargeting with BCH and BTC? 2017-11-13T21:06:45.693

4 Formula for Bitcoin Difficulity 2017-12-06T17:35:37.637

4 Testnet difficulty change 2018-06-28T10:15:57.963

4 Why aren't block hashes used directly as scores for difficulty purposes? 2018-07-20T14:22:18.587

4 Why are block header bits necessary? (Valid difficulty is already implied by chain history) 2018-12-02T20:12:40.877

3 Pool getwork "target"? 2012-02-15T06:09:08.760

3 How does the rate of getwork requests correlate with the hashrate of a miner? 2012-04-15T11:53:36.883

3 Difficulty based derivatives and insurance 2012-12-04T20:38:04.477

3 How does blockchaininfo find out the difficulty? 2012-12-07T05:34:58.387

3 Given the probability of finding a block, and time taken, can I infer hashrate? 2013-02-28T16:58:03.677

3 What was the intended benefit of truncating the Target? 2013-03-01T03:48:17.453

3 What is wrong with this C# code that converts a block's bits into a target? 2013-03-04T03:42:01.110

3 Matching pushpool difficulty with stratum's 2013-05-19T15:06:06.507

3 What's the advantage to requesting a higher difficulty when mining? 2013-12-20T17:24:21.853

3 In pooled mining, what is pdiff, bdiff and ldiff? 2014-04-06T10:18:14.633

3 Is it possible to calculate the difficulty purely by the number of blocks generated in e.g. 3 month and the staring difficulty? 2014-07-03T07:24:10.177

3 Is it necessary for blocks to record the nBits difficulty parameter? 2014-12-23T21:34:43.203

3 Energy to confirm one block? 2015-03-18T20:17:56.233

3 Is mining difficulty leveling out (Spring 2015)? How does this affect the economics of Bitcoin? 2015-03-18T20:54:18.910

3 Who recomputes and announces the difficulty in Bitcoin? 2015-06-24T15:08:30.077

3 Is there actual consensus on the blockchain's tip or only until the next block? 2016-02-15T11:27:55.233

3 How many correct hashes are there giving a difficulty? 2017-02-19T02:25:06.113

3 What does the nBits value represent? 2017-07-27T15:27:40.003

3 Why is difficulty measured in a hash’s leading zeroes? 2017-08-09T03:46:34.053

3 What is a Stratum "mining.set_difficulty" command for? 2017-11-01T05:45:48.583

3 How is mining difficulty defined (formula)? 2017-11-04T10:50:30.753

3 Why max target is not (2^256 - 1)? 2018-01-06T20:52:38.950

2 What makes difficulty more difficult? 2012-12-05T08:20:13.380

2 Looking for unit testing data for Block.Bits to & from a JSON-RPC string 2013-03-01T04:58:08.170

2 If each miner has a different share difficulty in a PPS pool, how should I calculate and reward the relative effort of each? 2013-03-03T22:33:19.530