Blockchain Consensus Protocols
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How a network of mutually distrusting machines agrees on one ordered history without a coordinator — proof of work, proof of stake, proof of history, and the classical BFT family. Interviewers use this area to see whether you can reason about the security/decentralisation/throughput triangle rather than recite the name of a chain.
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- Proof of Workempty
- Longest-Chain Ruleempty
- 51% Attacksempty
- Mining Economicsempty
- Proof of Stakeempty
- Validator Selectionempty
- Finalityempty
- PoS Variantsempty
- Proof of Historyempty
- VDF Mechanicsempty
- Cryptographic Clockempty
- Event Orderingempty
- PoS Integrationempty
- PBFT Protocolempty