An N block reorg on Bitcoin with more proof-of-work appears out of nowhere with a double spend. How big does N have to be before you choose not to accept the reorg?
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$ bitcoin-cli invalidateblock "blockhash"
2 replies 1 retweet 14 likes
Hugo Nguyen Retweeted Hugo Nguyen
the question is, is this a sustainable solution?
https://twitter.com/hugohanoi/status/1053007608976560129 …
Hugo Nguyen added,
Hugo Nguyen @hugohanoi
Replying to @hugohanoi @neha
... since whoever capable of taking over majority hash rate & caused a deep reorg like that can easily overwhelm your minority chain if they need to. You can also change the hash algo with the HF, which'd brick all mining hardware- might not be a safe position to be in either. 

12:49 PM - 18 Oct 2018
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