Can someone explain to me what POW phase is? is it better to mine during the POW phase?
thanks!
This question is already answered before. U might like to read this...
In short, Proof-of-Work and Proof-of-Stake are criteria that determine your ability to add a block to the block chain. Their purpose is to ensure that the cost of adding an invalid transaction to the block chain is more than the benefit of the invalid transaction.
In PoW, the amount of work done by your mining hardware determines your chances of adding a block. In order to double spend you would need to expend a lot of computing power.
In PoS, the amount of coins you own determines your chances of adding a block. Double-spending damages the integrity of the currency, and doing it would threaten the value of the coins you own.