@s{quotedtext}
@s{quotedtext}
The misbehaving client creates orphan blocks with very low proof-of-work; the unlucky miner creates orphan blocks with valid proof-of-work.
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.
Or giving them a bogus "previous block hash" so they're not anchored anywhere in the chain at all.