About this study
“How Does Bitcoin Actually Work” is a free, 4-lesson study on how does bitcoin actually work at novice level, created with soclever, a personal AI teacher. Each lesson takes a few minutes and ends with a check-in question; finish the curriculum and you can take a certificate test to earn a diploma. Starting is free and needs no account — or generate your own study on any topic.
What you'll learn
- The Double-Spend Problem. In 1982, computer scientist David Chaum published a paper on digital cash and ran headlong into a wall: if money is just data, what stops you from copying it and spending it…
- How Blockchain Solves Trust. In 2008, someone using the name Satoshi Nakamoto published a paper describing a problem: how do strangers transfer money to each other without a bank sitting in the middle to…
- Proof of Work and Mining. Bitcoin's ledger is kept secure by a system that makes it harder to break the rules than to follow them—and the harder part costs real money. Here's the surprising bit: Bitcoin…
- Bitcoin Transactions End-to-End. Say Alice wants to send one bitcoin to Bob. She opens her wallet software and enters Bob's address and the amount. What happens next isn't magic—it's a chain of concrete steps.…
Questions this study answers
- Why does digital money need a solution to the double-spend problem that physical cash doesn't?
- Why is it nearly impossible to fake a bitcoin transaction once it's been added to the blockchain?
- Why would someone trying to fraudulently change an old Bitcoin transaction need to redo computational work not just for that transaction, but for every block that came after it?
- Why does the network accept Alice's transaction without trusting her, and what proves she actually authorized it?
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