Bitcoin block and chain design — headers, Merkle trees, and chain selection
How Bitcoin blocks are structured, how Merkle trees commit transactions to block headers, and how the most-work chain selection rule resolves forks.
Entries tagged with this topic. Spans across types and sources — explore connections between people, events, and themes.
6 entries
How Bitcoin blocks are structured, how Merkle trees commit transactions to block headers, and how the most-work chain selection rule resolves forks.
Beginner's visual guide to Bitcoin — 30 terms across 8 chapters, each with a diagram. Coins as UTXOs, transactions as flows, blocks chained by hashes, mining, mempool, longest-chain consensus.
After Len Sassaman's death (July 3, 2011), security researcher Dan Kaminsky embedded an ASCII-art tribute into the Bitcoin blockchain, announced July 30 and revealed at Black Hat USA 2011.
Technical analysis of Bitcoin's genesis block from v0.1 source: hardcode auto-construction, the five-day gap as timestamp artifact, two-layer authorship reading, PoW headroom, key possession.
Finney responds: Bitcoin has no single point of failure — 'no mint, no officers to subpoena.' The 'decentralized, irreversible transaction database' is the core innovation, foreshadowing blockchain.
Bitcoin's first block contains a Times bank-bailout headline — Satoshi's only personal voice inside the design, etched in the system's most permanent place. A reading of why he chose it.