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Introduction to cryptocurrencies
Cryptocurrencies are digital assets designed to facilitate peer-to-peer financial transactions and smart contracts on the internet in a decentralized manner. This was first accomplished by solving the “double spend” problem and by using advanced cryptography and programming.
Blockchains
Wallets
Nodes
Tokens
Privacy
Confirmations
Summary

Resources
Here are some links to quality video content explaining bitcoin.
Beginner
Intermediate
Advanced

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