Blockchain and smart contracts (...)

on YouTube ↗51m

" summary

Covers how to build and deploy a working smart contract: a simple notarization contract written in Solidity on Ethereum testnet with a withdraw modifier that enforces owner-only transfers and reverts on bad calls, demonstrated end-to-end using Truffle and MetaMask demo tools. Explains gas pricing and limits, shows transaction and block explorer traces, notes that bugs are permanent on-chain and cites the DAO-class vulnerability as a cautionary example.

AI-written summary · about

" chapters (8)

1. 0:00Introduction to blockchain
2. 8:50Blockchain use cases
3. 15:56Trust in traditional payments
4. 23:33Gas fees in smart contracts
5. 30:00Smart contract basics
6. 39:15Asset transfer with smart contracts
7. 46:30Security risks in smart contracts
8. 49:23Ethereum and Vitalik Buterin

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