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

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

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

10 Strongest vs Longest chain and orphaned blocks 2014-07-28T03:38:11.877

8 What is chainwork? 2014-06-09T17:28:04.237

7 Can the blockchain be outpaced by a chain of low-difficulty blocks? 2014-05-07T14:47:15.713

7 What does "Activating Best Chain" mean? 2015-11-26T02:03:06.433

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

5 How is a blockchain split resolved? 2015-05-06T19:36:13.647

4 How does Bitcoin avoid splitting into multiple p2p networks? 2016-12-09T22:40:16.683

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

3 Why should a miner choose the longest blockchain if another chain has a higher expected reward? 2013-02-13T17:36:48.037

3 Longer fake block chain with "valid" transactions 2013-12-03T08:56:43.253

3 Blockchain length by number of blocks or transactions? 2014-01-08T19:07:18.553

3 Can a shorter chain overcome a longer one? 2015-01-20T15:01:03.860

3 How do I know I can trust the head of the blockchain 2016-08-29T12:04:00.080

3 Why Block Chain not Block Tree? 2019-11-02T00:25:43.357

2 Is it possible that someone forks the chain? 2014-07-22T22:31:22.687

2 What does the main_chain value returned by blockchain.info mean? 2014-10-24T01:26:31.927

2 In what order do new blocks get processed? 2014-12-01T10:40:09.163

2 Does the electrum client decide the best chain on the basis of how much work was done, or how long the chain is? 2015-07-05T02:00:51.520

2 Can there be stale blocks in "header first" implementation? 2016-05-27T02:41:15.193

2 Is bitcoin just one long block chain or are there multiple chains? 2017-03-20T04:58:30.517

2 Why is it important that miners mine at the end of the longest branch? 2017-03-24T10:35:53.417

2 What prevents rewriting the history of a chain with a different difficulty? 2017-12-21T20:15:16.670

2 Can a two-block-sized chain override the main chain? 2017-12-22T10:27:25.147

2 Why can't a Bitcoin fork take over? 2018-01-25T06:59:53.050

2 Shorter Chains in blockdata 2018-01-25T15:15:50.087

2 Why isn't the block hash used to calculate accumulated work? 2018-12-12T21:29:11.130

1 Tie Breaker to reduce orphaned chains? 2017-05-23T13:45:17.850

1 What if some attacker forks blockchain from height 1 with a constant difficulty 1? 2017-12-11T10:48:54.877

1 Given that you have the necessary computing power, how does a tampered blockchain get accepted by the network? 2018-05-11T09:42:21.083

1 How can Segwit increase transaction throughput if the same amount of data is stored in the blockchain? 2018-12-07T10:25:33.747

1 "Fork choice rule" : A general term? or a specific algorithm? 2019-07-02T13:48:55.230

1 How Does Bitcoin Core Client Keep Track of Longest Chain/Strongest PoW Chains? 2019-10-20T12:32:24.340

0 Why is the longest block the one that gets accepted by all the nodes? 2017-12-23T03:34:28.543

0 Does the Longest Chain Always Win the Mining Award? 2018-01-31T03:01:02.957

0 Several Q's about consensus about the longest chain and when this chain be confirmed? 2018-05-03T05:32:29.470