[Cryptography] ghash.io hits 50% of the Bitcoin compute power

John Levine johnl at iecc.com
Sun Jun 15 19:24:26 EDT 2014


>Whether checkpoints are a good idea -- in particular, whether they imply
>that Bitcoin is not nearly as decentralized as advertised -- is a
>legitimate matter for debate. But on a purely technical basis, the
>current block number is 306,006, so the correct answer to John's
>question is "nothing would happen because his software would reject any
>attempt to rewrite that much history".

Well, OK, how about if it started hearing that there was a fork at 279,001?

R's,
John


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