Blockchain in your product. How can a tester survive in a distributed system?

Blockchain products aren't just about enjoying a new technology; they're full-fledged systems with the most unusual and outlandish challenges: event consistency, asynchrony, race conditions, and irreversible operations. In this talk, we'll explore why traditional QA approaches no longer work in blockchain systems, how smart contract and infrastructure testing strategies are changing, and what practices help make such products testable and maintainable.