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For engineers: the technology, smart contracts, cross-chain, mining/consensus, and the security mindset for building on crypto.
Audience: Backend/full-stack engineers and tinkerers building or integrating with crypto systems.
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Hashing, consensus, UTXO vs account model, gas — the engineering primitives.
- 1. The Technology Behind ItHashing, consensus, UTXO vs account model, gas — the engineering primitives.
- 2. Mining & ConsensusPoW/PoS/PoA/PoH/DPoS, ASICs, hash rate, and energy economics.
- 3. Hash Hunt (PoW game)Find an input whose SHA-256 starts with N zeros — feel the difficulty.
- 4. Gas-Fee EstimatorSlide tx priority and see estimated wait/cost.
- 5. Cross-chain TransferThe lock-and-mint bridging pattern and wrong-network failure mode.
- 6. Mnemonic DemoHow a 12-word seed is just an encoding of entropy (simulated phrases only).
- 7. Security & ScamsThe threat landscape and the smart-contract risk mindset.
- 8. Major Networks & AssetsBitcoin, Ethereum, and multi-chain Tether — and how L2 gas works.