# Gavin Andresen # 2011-12-07 22:12:23 # https://bitcointalk.org/index.php?topic=53505.msg643422#msg643422 @s{quotedtext} @s{quotedtext} @p{brk} The misbehaving client creates orphan blocks with very low proof-of-work; the unlucky miner creates orphan blocks with valid proof-of-work. @p{par} The misbehaving client gets away with their misbehavior by either anchoring their bogus blocks deep in the chain, when blocks had very easy proof-of-work. @p{par} Or giving them a bogus "previous block hash" so they're not anchored anywhere in the chain at all. @p{brk}