Learning Solidity (0.5) - Signature Verification

You can use Solidity and MetaMask to sign and verify arbitrary messages. This technique allow contracts to scale offchain and it is a fundamental building block for second layer blockchain technologies such as payment channels and side chains (Plasma). But the details of how to actually sign and verify a message can be tricky. So in this video, I will break down, step by step, how signature verification works. Code: https://solidity-by-example.org/signature/ Remix IDE: http://remix.ethereum.org Solidity: https://solidity.readthedocs.io Follow on Twitter: @ProgrammerSmart https://twitter.com/ProgrammerSmart Join me on Discord: https://discord.gg/Ny8sPaj Website: https://smartcontractprogrammer.com