In this module, you will learn what smart contracts are and how they work. We will discuss how blockchain-based smart contracts can enable individuals and organizations to reduce transaction costs, minimize the need for third-party intermediaries, and improve productivity, security, and privacy.

Accessing large, centralized systems such as email, health insurance, or a bank account requires the provision of various identifiers—for example, government-issued ID cards, self-selected passwords, or biometric data. However, identifier-based systems are problematic—both administratively and philosophically. In this module you will learn about five problems with identifier-based systems and explain how a distributed self-sovereign identity system, deployed on the blockchain, can resolve many of these issues.

There are countless opportunities for blockchain to disrupt or displace traditional centralized business models. In this module, we explore how blockchain technology can support “open networked enterprise” business models through the inclusion of native payment systems, reputation systems, uncensorable content, trustless transactions, smart contracts, and autonomous agents.