Donations

Executive Hashpower

Executive Hashpower is what happens when miners decide to act, ignoring markets temporarily. Not following short-term benefit, but a potential future profit (monetary or reputational).

PrecedentWhenWhereHeightDurationReorgAccidentalHashwarDouble-spendSplit
1.Bug + 51 blocks Reorg2010-08-15 (11.2y)Bitcoin746378h 27m51 blocks
2.Bug + 24 blocks Reorg2013-03-11 (8.6y)Bitcoin2254306h 20m24 blocks
3.BTC-BCH Split2017-08-01 (4.2y)BTC-BCH4785594h 56m
4.BCH-BSV Split + Hashwar2018-11-15 (2.9y)BCH-BSV556767~9 days
5.Segwit theft + Reorg2019-05-15 (2.4y)BCH58269823m2 blocks
6.BCH-XEC Split2020-11-15 (0.9y)BCH-XEC66164820h
7.XEC Hashwar (empty blocks)2020-11-28 (0.9y)XEC662397~5 days198 blocks

Bug + 24 blocks Reorg

Resume

Bug CVE-2013-3220 in Bitcoin-Qt version 0.8.0

Result

  • Downtime: 6h 20m
  • One double-spend reported
  • 24 valid blocks lost
  • Incident fixed by downgrade + reorg

Participants

BTC Guild
Others