The first bad block appeared at height 4,487,776 at 15:44 UTC on Aug. 7. Once the weakness had been demonstrated on the live network, others appeared to copy it and produce invalid blocks of their own. Ravencoin has since released a fix, but patching the software does not undo what is already written.
The two pools, 2Miners and RavenMiner, are building their version from block 4,487,775, the last one before the exploit. The project said it asked them to restart from a more recent point, which would put less history at risk, but they declined.
Some transactions caught in the gap may be picked up again and recorded on the replacement chain. Ravencoin further warned exchanges and other services not to assume that deposits or withdrawals wiped out this way will return on their own, and advised them to suspend both until the network settles on a single version.
Exchanges have started responding. Bitvavo suspended RVN deposits and…
