Proof Of Work (PoW) and Proof Of Stake (PoS): How They Work and Differences https://ripplenews.tech/2018/02/06/proof-work-pow-proof-stake-pos-work-differences/ … #xrpthestandard #xrp #xrparmy #ripple #Ripplenews #cryptonews #cryptocurrency #cryptocurrencynews #blockchain #bitcoin #btc