Re:Cryptocurrency Blockchains Don’t Need to Be Energy Intensive
by tromp on Monday July 05, 2021 @09:34AM
(#27737810)
> seems to have the same security guarantees as Bitcoin
It doesn't though. While the PoW in a block commits to all its transactions, POST cannot and does not. Instead the winning farmer separately commits to the transactions with a signature. Which means that a collusion of all recent winning farmers can rewrite tx history at zero cost. Which is not possible in PoW.
It doesn't though. While the PoW in a block commits to all its transactions, POST cannot and does not. Instead the winning farmer separately commits to the transactions with a signature. Which means that a collusion of all recent winning farmers can rewrite tx history at zero cost. Which is not possible in PoW.