Blockchain-Learning-Notes Blockchain Identity 1.1 Blockchain Basics 1.2 Blcokchian Transaction 1.3 Verify Message Signature Blockchain Data 2.1 Blockchain Data Overview 2.2 Bitcoin Core Testnet 2.3 Bitcoin Debug Console 2.4 Blockchain Data Identity and Smart Contracts 3.1 Introduction to Ethereum 3.2 Smart Contracts and Solidity