How Blockchains Work

How Blockchains Work is for someone who has used Bitcoin and Ethereum and wants to know what the machinery underneath is actually doing, with the real numbers and the original documents. Six lessons go from a hash to a finalized block: how blocks chain together, how a key becomes an address and a signature becomes ownership, what a confirmation is worth on each network, how proof of work and proof of stake keep thousands of strangers honest, how the rules change and who decides, and what a chain gives up to do more per second. The lessons compare designs and rank no network. No lesson tells you which coin to buy, when to buy it, what price it will reach or what profit to expect. Lesson 1 is open to everyone; the other five come with The Crossover Pro.

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Nothing in the Learning Lab is financial advice.