Dive Deep Into Blockchain
summary
Covers blockchain internals by explaining how cryptographic hashes and Merkle trees form block headers, the exact header fields including the genesis block, and why proof-of-work needs huge CPU effort. Shows address generation from public/private keys and a sample block format with byte counts, includes a minimal chain implementation demo, and discusses trade-offs between public and private blockchains, consensus attacks like 51%, and where smart contracts or the Lightning network help or fail.
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chapters (14)
- 0:00Blockchain introduction
- 3:36Blockchain as database
- 7:46Data immutability
- 12:47Decentralized systems benefits
- 16:20Implementation considerations
- 20:37Cryptography and key management
- 25:59Block structure and verification
- 31:02Genesis block and integrity
- 35:58Consensus mechanisms
- 41:58Smart contracts
- 46:18Blockchain challenges
- 52:0151% attack risks
- 56:20Practical applications
- 1:00:17Q&A
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