Blockchain 101

on YouTube ↗24m

" summary

Covers Bitcoin basics from personal experience since 2012 to current economics, with a live paper ledger demo that shows how blocks close and become immutable, a plain-proof-of-work explained walkthrough, and numbers: 21 million cap (≈16.7M issued now) and halvings every four years. Explains miners vs validators, block rewards and transaction fees, why pools exist, and the practical meaning of a 51% attack and why it’s costly to execute.

AI-written summary · about

" chapters (9)

1. 0:00Introduction
2. 2:34What is blockchain
3. 5:50Distributed ledgers vs banks
4. 7:16Live demo: transaction
5. 12:21Proof of work and mining
6. 16:35Security and 51% attacks
7. 19:03Bitcoin supply and halving
8. 21:01Mining pools profitability
9. 22:57Q&A

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