Blockchain,
from first principles
to self-custody.
A free course built from real recordings. Seven industry experts. Clipped, sequenced, and made interactive. No hype. No signup.
Change one letter. Watch everything change.
This is real SHA-256, the fingerprinting function that secures every Bitcoin block, running live in your browser. Dr Neetu Sharma used exactly this in Week 2. Type something. Then change a single character.
Every lesson has an activity like this. Browse all 18 lessons
Three tiers, one path.
Not a pile of videos. A deliberate sequence. Each tier builds on the last. Every lesson is a short clip, a plain-language explainer, a real-world example, and something to do.
The original series
Where this course came from
Every lesson is cut from a real, free, eight-week live series taught by people building blockchain in food, finance, security, and supply chains. The course is the distillation. The series is the source.