[bitcoin-dev] Fork of invalid blocks due to BIP66 violations

Peter Todd pete at petertodd.org
Sat Jul 4 05:44:53 UTC 2015

On Fri, Jul 03, 2015 at 10:43:14PM -0700, Raystonn wrote:
> <p dir="ltr">The SPV clients should be checking node versions.  This is for wallet authors to implement.  End-users should just stay current with their chosen wallet software.<br>

Nodes can and do lie about what version they are all the time.

Fact is, SPV means you're trusting other people to check the rules for
you. In this particular case bitcoinj could have - and should have -
checked the BIP66 soft-fork rules, but in general there's no easy
solution to this problem.

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