Foundations of Blockchain: Learning by Building and Experimenting

Blockchain technology has emerged as one of the most transformative innovations of the digital age, yet it remains widely misunderstood. This workbook, "Foundations of Blockchain: Learning by Building and Experimenting," takes a radically accessible approach to demystifying blockchain concepts for first-year engineering students. Designed with the philosophy that true understanding comes from active experimentation rather than passive reading, this resource requires no prior blockchain knowledge, no coding skills, and relies solely on browser-based interactive demonstrations. The workbook is structured across six carefully sequenced sessions spread over three days, each building upon the previous to construct a complete mental model of blockchain systems. Day One establishes the foundational problem by examining digital records, trust in centralized systems, and introduces hashing as a mechanism for making data tamper-evident. Day Two progresses to constructing blocks and linking them into chains, revealing how cryptographic linking creates immutability. Day Three explores security through Proof of Work mining and concludes with distributed consensus.