Coin Wars

When Bitcoin first appeared, it was impossible to foresee a future where cryptocurrencies would play a significant role in decentralized finance and replace traditional finance. When Ethereum first appeared, it was impossible to foresee a future where cryptocurrencies would replace Web2 and play a major role in Web3. However, Bitcoin was the starting point, and Ethereum followed suit, proving hope by connecting the dots, and many dots are emerging as we look to the future. The future dots will also emerge from the present, so there is a path in the flow of dots. However, this path is not created slowly and gradually like the evolution of the Earth. Instead, it is approaching us at a breathtaking pace through the competition and participation of developers, communities, and ordinary people. This is a real war. Who will be able to pioneer this path? Who will win the war? This book uses the metaphor that war is being fought in 10 subgraphs, each organized and explained. First, it looks at how Bitcoin will continue to lead. Ethereum, the leading second-generation cryptocurrency, confirms that there is no doubt that Ethereum will continue to lead the world of smart contracts. The governance of the chain platform or the upper dApp platform is essential because it must be managed and developed without the control of a centralized organization. Therefore, this book deals with cryptocurrencies related to governance. We will look at channels, rollup chains, and side chains that appear in various forms while solving scalability with layer 2 chains and organize the emergence of chains that directly contribute to the evolution of Web 3.0. We will also organize related cryptocurrencies about how to safely extract external world data from the chain and connect Web 3 to the existing financial system. If many cryptocurrencies after Ethereum were nothing more than imitations of Ethereum, some cryptocurrencies are differentiated from Ethereum. Their emergence provides another hope for the future of cryptocurrencies, so this book covers related cryptocurrencies in detail. dApps consisting of only smart contracts form dApp platforms and attract users. We will look at several famous dApp platforms. Decentralized identity (DID) and digital sovereignty must be developed to prove the future value of cryptocurrencies. This book deals with these issues last.