Explore the mysteries of Satoshi and learn about Bitcoin along the way.
We’re excited for you to dive in. Note that some challenges require basic programming experience (tips are available). Give it a try and share your feedback.
The year is 2139. The last bitcoin is two weeks from being mined. For months, a clock has ticked down in Satoshi Square. The world awaits the last block. Then, suddenly, the network grinds to a halt.
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