Proof of Work (PoW) is used to ensure timestamp reliability and solve the Byzantine Generals Problem.
PoW solved the initial value proposition of cryptocurrency through the concept of computational work, while PoS addressed the issue of maintaining currency value by assigning intrinsic value through contributions to the cryptocurrency network and society. This should be viewed more as a historical progression rather than simply different consensus algorithms.
Public Blockchain Consensus Algorithms

Private Blockchain Consensus Algorithms
블록체인 합의 알고리즘 알아보기 1편(PoW, PoS, DPoS)
지난번 포스팅에는 '퍼블릭 블록체인 vs 프라이빗 블록체인'에 대해 포스팅 하였습니다. 이번 시간에는 퍼블릭 블록체인과 프라이빗 블록체인에는 어떠한 합의 알고리즘이 존재하며 각각은 무엇인지 설명해 보려고 합니다. P2P 네트워크에서는 정보의 지연과 미 도달 사태를 피할 수 없고 데이터를 변조할 의도가 없다 해도 이중송신에 따른 처리 중복이나 잘못된 정보에...
https://medium.com/@kimjunyong/5-%EB%B8%94%EB%A1%9D%EC%B2%B4%EC%9D%B8-%ED%95%A9%EC%9D%98-%EC%95%8C%EA%B3%A0%EB%A6%AC%EC%A6%98-%EC%95%8C%EC%95%84%EB%B3%B4%EA%B8%B0-1%ED%8E%B8-pow-pos-dpos-21f8e3b2c22a

ReapChain on Twitter: "Solutions for TrilemmaThe three dilemmas of blockchain namely Blockchain Trilemma are scalability, security and decentralization#ReapChain #Blockchain #REAP #IoT #InternetofThings #Trilemma #scalability #security #decentralization #SolutionsforTrilemma pic.twitter.com/3BQVTRepFe / Twitter"
Solutions for TrilemmaThe three dilemmas of blockchain namely Blockchain Trilemma are scalability, security and decentralization#ReapChain #Blockchain #REAP #IoT #InternetofThings #Trilemma #scalability #security #decentralization #SolutionsforTrilemma pic.twitter.com/3BQVTRepFe
https://twitter.com/reapchain/status/1358025298927906817


Seonglae Cho