Web1.0 Web2.0 web3 Username Password Sign in with Google Sign in with Facebook Sign in with Twitter Connect Wallet App 1 App 2 App 1 App 2 App 3 App 1 App 2 App 3 App 1 Server App 2 Server Cloud Server1 Cloud Server2 Public Blockchain - Read-only web - Home page - IDs : Server - Read-write web - Social Media - IDs : Platform - Read-write-own web - Dapps (Decentralized Applications) - IDs : Self-Sovereign (private key)