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> has been offline for more than k blocks These systems require you to be online at regular intervals for proper security guarantees.
by drcode 10y ago
> has been offline for more than k blocks
These systems require you to be online at regular intervals for proper security guarantees.
- benchaney 10y agoSo new users don't have proper security guarantees? That seems like a somewhat serious flaw.
- drcode 10y agoYes, this is the weakness of POS systems. Of course, with a POW system new users still need to get a trusted copy of the genesis block.
- lappa 10y agoThey don't, however, need trust to determine which chain has had the most work done on it. An alternative genesis with much less work done on it is suspect immediately.
- murbard2 10y agoNew Bitcoin users also need to rely on trust to find out Bitcoin's genesis block. Yes it's trivially solved, but the same is true for PoS as long as the epochs are long enough.
- lappa 10y agoYes, as I mentioned users who don't have to sync back up have their vulnerabilities limited to stake grinding attacks.