• Welcome to forex.pm forex forum binary options trade. Please login or sign up.
 

Do nodes propagate stale blocks?

Started by Bitcoin, Mar 01, 2022, 05:40 am

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

Bitcoin

Do nodes propagate stale blocks?

I read somewhere (but can't find now) that while a node might receive a stale block, the node won't propagate a block that it knows to be stale. Is that true?


If so I don't quite understand how a secret attacking miner, even if they did unrealistically obtain >51% hashing power, could pull off a massive reorg. I could see the attacker generating a fork with a longer chain, but when they tried to distribute that new chain to the network, they'd have to do it one block at a time. When a node received the first of the attackers new blocks, it would see it as a stale block, thus not propagate it, right?


Source: Do nodes propagate stale blocks?