Tag: proof-of-work

190 What exactly is Mining? 2011-08-30T23:40:52.877

152 What are bitcoin miners really solving? 2013-02-28T17:53:44.590

101 Is there a way to set up proof-of-work systems so they would be even more useful? 2011-09-01T04:10:16.373

31 How does proof-of-stake "mining" work? 2014-01-07T01:21:31.250

28 What is proof-of-stake? 2013-04-03T21:30:42.827

27 Why doesn't Bitcoin migrate to proof-of-stake? 2020-04-19T15:13:16.230

26 The bitcoin mining algorithm from a programmer's viewpoint 2013-08-11T02:29:54.640

23 What are the pros and cons of Ripple's consensus as compared with Bitcoin's proof-of-work? 2013-04-24T21:11:46.640

19 What is proof-of-work? 2013-04-03T21:19:57.790

19 Why do we need Proof of Work in bitcoin? 2017-02-09T20:06:00.883

18 Are there alternatives for proof of work? 2013-03-20T18:17:43.450

13 Why can't we design a bitcoin that does useful work? 2014-01-21T04:11:26.657

13 What is Proof of Burn? 2014-04-01T11:22:54.040

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

12 How can we be sure that a new block will be found? 2014-03-03T15:16:09.293

11 Bitcoin without mining 2014-01-24T11:01:14.773

11 How does proof of work inspire trust when the work is just guessing? 2019-01-23T21:24:40.350

10 What features of scrypt() make Tenebrix GPU-resistant? 2011-09-30T18:59:58.273

10 Will the proof-of-work system end when all bitcoins have been mined? 2013-04-15T01:06:32.930

10 Is it possible to make PoW ASIC-resistant through dynamically generated hash chains? 2015-01-22T14:45:14.620

10 What's the difference between PoW and PoS? 2016-03-24T00:46:02.627

10 Can we construct a UTXO which is spendable only via proof of work? 2019-10-17T23:44:15.940

9 How cooperative or competitive is the mining process? 2011-09-25T02:59:45.913

9 How does Proof of Burn work? 2017-01-03T13:40:49.663

8 What prevents similar time-warp attacks in Bitcoin as happened to Verge? 2018-05-22T22:08:29.313

7 How does a mix between Proof of Work/Stake work? (Peercoin) 2014-08-03T20:54:41.100

7 How is it that concurrent miners do not subvert each other's work? 2015-01-21T17:47:39.917

7 What other whitepapers are there for coin distribution models like POW (proof of work) and POS (proof of stake)? 2015-03-30T13:59:19.833

7 What Value does mining provide? 2015-05-15T15:01:29.763

6 What happens to extinct blockchains, and transactions inside of them? 2013-08-01T14:14:42.940

6 Probablity Distribution of mining 2014-05-12T18:28:38.783

6 What is the reason for using PoW in bitcoin? 2014-08-01T07:25:54.817

6 Is it possible to combine PoW with PoS by taking turns? 2014-11-13T22:09:24.743

6 Does every nonce really have an equal chance of winning? 2015-03-11T20:53:08.963

6 51% attack and rewriting to the latest checkpoint 2018-01-06T18:24:36.103

6 How to protect the early stages of a proof-of-work application? 2018-02-22T14:46:58.707

5 Bitcoin alternative designed for NVIDIA 2011-10-14T23:23:44.160

5 What is the difference in hashing algorithm between bitcoin and litecoin? 2013-05-06T23:32:52.540

5 Is there a proof of work system which takes significantly more memory to generate than it does to verify? 2015-03-27T20:02:39.430

5 Has anyone proposed a human only proof of work system? 2015-10-28T17:59:49.937

5 In what sense does the security model of proof-of-stake require users to "log on to the internet every few months" 2018-01-24T15:39:06.033

5 How does scrypt pow work? 2018-04-23T12:38:14.320

5 PoW 51% attack vs. BFT 1/3 attack? 2018-07-26T04:58:49.340

5 Is Bitcoin PoW actually SHA256 + Merkle generation? Or have I misunderstood coinbase/append? 2019-07-21T04:35:04.667

4 Can Artificial Intelligence be used to mine BitCoins faster? 2012-10-01T01:12:56.147

4 Work rejected. Server says: Stale or alien proof of work 2013-04-21T15:43:46.220

4 Intrinsically useful proof-of-work using Mersenne or Fermat numbers factorization. Could it be possible? 2013-06-14T23:18:51.083

4 What is the problem that mining solves? 2013-11-08T13:57:17.973

4 Could an algorithm be made ASIC-resistant by simply adding deterministic permutations depending on the hash of the previous block and the nonce? 2013-12-13T01:23:11.347

4 What is the variable in a block that holds hash of found PoW? 2014-04-13T20:59:34.717

4 What is proofOfWorkLimit? 2014-04-18T00:17:16.243

4 Why does an adversary have to control 50% of the computing power to double spend? 2015-02-16T05:17:46.067

4 Why can't Bitcoin switch over to Gridcoin's proof of work system? 2015-05-06T21:03:57.780

4 Is there a PoW system that shows cumulative work without an ever-increasing proof size? 2015-06-11T18:14:07.073

4 How does Peercoin (or other PoS) prevent timestamp forging effecting hash attempts or random minting? 2015-07-09T20:08:59.760

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

4 How does a time warp attack work? 2016-09-10T01:29:36.897

4 What is the difference between PoW and PoS regarding computations when determining a new block? 2016-11-03T13:47:57.300

4 What is the downside of not using Proof of Work for validator selection? 2017-09-06T23:45:09.217

4 How does a miner get selected in Proof Of Stake? 2017-11-15T19:10:40.547

4 Egoistic miners combined with large transactions destroy PoW? 2017-12-01T13:05:05.660

4 POW based blockchains systems Majority Attack 2018-01-08T18:49:48.150

4 How does Proof of Stake prevents dishonest behaviour compared to PoW? 2018-02-14T18:35:25.003

4 How can one blockchain with the same block heigth as another, have more Proof-of-Work 2018-03-11T20:24:17.253

4 Why is the winner of Pow different everytime? 2019-08-26T13:50:21.420

4 What would happen if miners refused halving 2019-09-06T22:51:08.287

4 Can we measure bitcoin's accumulated work in terms of entropy (in bits) directly rather than expected number of hashes? 2019-11-26T23:26:26.433

4 Resources of a miner's reward in Bitcoin? 2020-03-02T13:18:14.667

4 Beginner's question: Why must proof-of-work be useless? 2020-07-16T09:26:15.957

3 How transactions get added to a ledger? 2014-01-10T14:01:38.723

3 Why do some mining algorithms run "cooler" than others? 2014-05-01T21:01:15.950

3 Proof of work - does the equipment matter? 2014-06-14T17:52:56.683

3 ASIC resistant PoW mechanism that generates new hash functions. How does that work? 2015-02-14T06:04:41.673

3 In Proof-of-Stake, can a block creator fudge the block hash? 2015-10-12T05:03:51.147

3 Why change the nonce instead of just rehashing? 2016-02-21T15:19:42.647

3 Would miners have an advantage by proceeding randomly? 2016-03-09T08:35:33.493

3 If SHA256 produces an alphanumeric hash, how can a hash be "less than a certain value"? 2016-07-16T22:24:21.973

3 Do multi-PoW currencies open up additional attack vectors on a blockchain? 2016-08-09T18:39:25.963

3 Probability of Orphaned Blocks 2017-06-14T10:08:17.097

3 Justification of usage of Blockchain by banks 2017-07-06T08:24:01.517

3 Implementing NiPoPoW algorithm 2018-01-16T12:26:00.413

3 Why you need to rehash each block after a changed block when changing data in a blockchain? 2018-01-21T18:47:17.467

3 Is Proof-Of-Work simply a decentralized clock? 2018-02-13T17:57:17.450

3 Why haven't a large number of cryptocurrencies copied Primecoin's mining algorithm? 2018-09-27T15:04:07.953

3 Byzantine Fault Tolerance Threshold of Bitcoin: 1/2 or 1/3? (Edited) 2018-11-08T10:50:11.840

3 Does proof-of-work contribute directly to prevent double-spending? 2019-08-04T02:36:20.040

3 Could a malicious attacker subvert the Bitcoin network by failing to create a block? 2019-10-06T17:16:38.967

3 What will a miner do when a high-fee transaction comes but he has constructed his block and is solving the puzzle? 2020-03-07T08:41:42.943

2 What happens to a miner's work when they restart? 2013-12-06T01:25:25.940

2 What sort of calculations do the miners have your computer do? 2015-05-05T16:31:32.090

2 Challenge difficulty adjustments 2015-07-31T23:07:01.500

2 Where is the spec of HashCash so that I can implement it in Java from scratch? 2015-09-03T12:39:44.087

2 How can a block be considered more difficult to solve/hash than another one? 2015-09-05T03:26:43.833

2 Why was finding a hash beginning with a certain number of zeroes chosen as the proof of work? 2015-11-14T21:40:42.850

2 Can the mining pool with the most mining power always win? 2015-12-01T15:29:27.867

2 why verification of transaction after proof of work? 2017-05-28T07:27:05.953

2 Zero-knowledge/Arthur-Merlin Proof-of-Work for NP-like problems with coin flips hashes of recent transactions 2017-05-31T12:54:09.620

2 What happens when there are no Bitcoins miners anymore 2017-07-01T09:09:14.457

2 Are the mining incentives of bitcoin compatible with the existence of a competing Proof-of-Work chain? 2017-07-04T14:20:12.943