Tag: blockchain

75 Can I download the whole block chain from somewhere? 2011-09-09T07:47:51.887

64 How anonymous are Bitcoin transactions? 2011-08-30T21:50:20.573

61 Can someone explain how the Bitcoin Blockchain works? 2013-07-31T17:24:43.420

58 What is the Merkle root? 2013-05-01T22:49:32.540

45 What do the different .dat files contain? 2011-09-10T16:13:07.630

44 Where are the user's bitcoins actually stored? 2011-10-17T19:26:51.520

44 How can I run bitcoind in pruning mode? 2015-05-21T09:02:08.400

43 How do I see the IP address of a bitcoin transaction? 2011-08-31T00:59:39.843

38 How to check if the block chain is up to date using bitcoind or json-rpc? 2013-04-03T18:45:11.593

37 How is it possible to launder bitcoins? 2011-08-30T22:02:20.277

37 What are checkpoints? 2011-10-29T19:41:14.630

36 How do I reduce the size of the block chain data on my machine? 2011-09-02T23:54:49.387

35 What are the keys used in the blockchain levelDB (ie what are the key:value pairs)? 2014-06-26T23:04:11.767

33 How to make a new blockchain from scratch 2013-10-28T18:41:58.360

32 Is a private blockchain better in any sense than a database? 2015-07-21T03:46:47.467

30 Are there any studies into the size of the blockchain scaling over time? 2012-01-30T11:10:05.300

30 What is the database for? 2013-05-21T19:54:48.360

30 How is the whitepaper decoded from the blockchain (Tx with ~1000x m of n multisig outputs) 2015-02-09T08:51:45.377

29 Where do I find the *actual* blockchain size? 2013-04-01T13:59:12.943

28 What would happen if a portion of the Bitcoin network was separated from the rest of the network? 2011-10-25T21:19:09.673

27 Why don't the timestamps in the block chain always increase? 2011-09-12T17:20:45.950

27 How many Bitcoin addresses are/have been carrying a balance? 2012-02-02T00:18:51.930

26 What is a double spend? 2012-10-05T12:20:32.830

25 When and how did Bitcoin start? 2011-09-06T18:09:27.973

25 What is the block maturation time? 2011-11-14T10:24:36.913

25 What does the term "Longest chain" mean? 2012-11-29T07:55:49.427

25 What is a hard fork? 2013-04-05T09:46:35.543

25 How are transactions broadcast to the rest of the network? 2014-10-30T20:33:40.760

23 Is bitcoin mining itself compromising the security of SHA256 2013-11-23T08:57:22.577

23 How do I recover from a cryptocurrency scam? 2019-11-26T10:23:06.850

21 How does a client decide which is the longest block chain if there is a fork? 2011-09-13T07:33:08.697

21 When was block 210000 generated and who solved it? 2012-11-28T16:28:31.867

19 What is the "blockchain"? 2011-08-31T00:06:44.367

19 How would the Bitcoin protocol be impacted if nodes only stored the blocks they cared about? 2011-09-08T01:27:17.507

19 How to check Bitcoind block chain download progress level 2013-05-13T09:02:29.290

19 Reliable, efficient way to parse the blockchain into a SQL database 2013-06-17T17:20:20.730

19 Why can't we fight Bitcoin thieves by not accepting payments from hacked accounts? 2016-08-21T13:40:29.980

19 Does blockchain without currency make any sense? 2020-06-26T00:16:18.103

18 Is the timestamp in the genesis block relevant? 2011-09-09T02:04:39.363

18 Countrywide Internet isolation, inevitable fork 2013-07-16T17:02:15.590

17 Knowing a single transaction can you track down a Bitcoin user? 2011-12-14T21:08:33.170

17 Is "Reclaiming Disk Space" already implemented? How effective will it be? 2012-01-14T19:44:58.450

17 How do you create a planet-specific cryptocurrency that will ignore longer block chains from other planets? 2014-08-12T18:46:19.787

17 Why does each block store a Merkle root? 2016-10-11T16:56:32.217

17 How does Bitcoin read from/write to LevelDB 2017-02-14T04:29:39.947

16 Peergroup download of the blockchain stalls? 2011-12-17T18:45:15.047

16 Should an end-user download the whole blockchain? Or is a “lightweight” client sufficient? 2012-11-24T21:02:04.177

16 "Blockchain Explorer" software? 2013-10-29T14:07:40.647

15 How can I view the current blockchain size? 2011-08-31T08:57:00.480

15 How can a non-miner store data in the block? 2011-11-04T00:46:02.970

15 What is the fastest possible way to download the blockchain? 2013-07-05T20:21:41.350

15 What happens when you send a transaction that ends up in an orphaned block. Is it recoverable? 2013-10-22T19:47:31.330

15 Can Bitcoin-Qt be configured to trim the blockchain? 2014-01-06T23:01:15.233

15 How often does a block have only one transaction? 2014-12-17T19:02:59.143

15 Can private keys remain offline for their entire life? 2015-01-14T14:00:41.053

14 Bitcoin usage charts 2011-09-12T18:51:52.817

14 bitcoins from the future 2012-07-25T22:45:39.427

14 What are the privacy implications of filtered blockchain downloads? 2013-02-21T09:07:39.647

14 How do you make a Genesis block? 2013-04-14T22:14:46.187

14 Creating my own bootstrap.dat? 2013-04-29T17:37:44.117

14 How to store data on the blockchain? 2015-09-01T18:40:08.437

13 What was the most recent change to the official client that broke block validity? 2011-09-30T20:22:32.510

13 Have there been attempts at a Bitcoin-powered general purpose database? 2012-06-16T23:57:13.827

13 What should I do about the March 12th 2013 blockchain fork? 2013-03-12T02:22:45.153

13 What keeps a dominant Bitcoin client vendor with the majority of the market share from unilaterally changing the protocol? 2013-03-30T23:07:42.200

13 Transaction Malleability in the blockchain 2014-02-12T09:32:47.790

13 How to minimize risk when accepting zero confirmation payments? 2014-04-27T14:19:16.840

13 Why do we need blockchains? 2016-10-30T22:26:22.090

13 So I mined a block, but why would other nodes accept my mined block? 2017-12-31T21:01:29.070

12 What will happen when SHA 256 needs to be replaced? 2011-10-06T12:01:24.870

12 Has any illegal data been saved in the Block Chain? 2012-04-19T00:09:43.907

12 How can an earlier block have a later timestamp? 2012-05-21T00:09:34.370

12 How can I read information from the blockchain? 2012-08-31T16:08:55.160

12 Why are Bitcoin calculation "useless"? 2012-12-06T05:51:45.427

12 Number of transactions per block 2013-12-02T14:14:21.140

12 How explicitly can the blockchain be pruned? 2014-01-05T23:49:05.160

12 How is a side-chain merging back to Bitcoin chain protected against double-spend? Where are the side-chain mining fees? 2014-04-13T02:05:17.370

12 Why does Bitcoin store all transaction inputs and outputs, instead of just an "account/balance" ledger? 2014-07-30T16:10:05.423

12 What are the equations to convert between bits and difficulty? 2014-09-11T15:42:59.810

12 All Bitcoin Public Keys with non-zero balance 2015-05-07T18:46:56.333

11 Is there a limit to how much extra data can be put into blocks via scripts? 2011-10-09T07:02:52.283

11 Does the bitcoin block contain minimal transaction detail? (Is it as private as possible given the proof-of-work design?) 2012-01-02T06:21:26.020

11 What are the key differences between different ways of embedding messages in the blockchain? 2012-01-18T23:28:39.627

11 What's the longest chain of orphan blocks? (How many confirmations have been necessary?) 2012-06-27T01:59:49.943

11 how can I insert an arbitrary sha256 hash into the blockchain? 2012-07-30T17:24:04.747

11 Transactions with a wait time (using nLockTime) 2012-12-14T13:31:13.533

11 Why must some bitcoin clients download the block chain and others not? 2013-01-09T04:16:42.897

11 Does the official Bitcoin version 0.8. client still download the whole blockchain? 2013-02-21T01:07:59.937

11 Is a public message at blockchain.info embedded in the actual block chain? 2013-02-22T20:32:16.783

11 How to transfer only the blockchain to a friend's computer? 2013-05-10T21:50:05.003

11 Definition of blockchain height 2013-12-12T00:39:28.953

11 What if a country 100% denominated in a cryptocurrency loses internet connectivity to the rest of the world? 2013-12-18T03:39:03.150

11 Is it chain of headers rather than a chain of blocks? 2015-01-12T12:03:47.170

11 Is there some client like Bitcoin core, but which highly compresses the blockchain? 2015-09-15T04:52:57.347

11 Why do you need the *complete* blockchain to mine bitcoins, why not just the last n blocks? 2015-10-28T14:33:55.330

11 Can there be a blockchain without mining? 2016-07-19T01:31:48.143

11 Why does Ripple use Blockchain technology in the first place? 2017-12-30T19:56:41.367

11 What can blockchain do that normal databases systems won't? 2019-12-01T15:12:06.150

10 Is there a way to use the block chain as entropy in random number generator? 2011-08-30T21:50:40.397