ConfPad

The blockchain is described as the next revolution in computing as it solves the problem of distributed trust when there is no trust on the internet. In this talk, we will explore what blockchain is in some detail from the conceptual use cases for it through to looking under the covers at how it works in detail. As the talk progresses, we will build up a sample implementation that will help developers form their mental model of what a blockchain is and how it works. In this talk, I will cover • Cryptographic principles used by blockchain • Storing transactions • Hashing with Merkle trees • Authorising transactions • Verifying transactions in a block • Proof of work vs Proof of stake • Maintaining consistency and consensus You will leave this talk with a very good understanding of how the blockchain technology works and how it helps you solve the problem of trust on a trust-less internet.