Keyword reference — entries that mention this term in body prose.
6 entries reference this keyword in body prose.
Hal Finney's RPOW system, a 2004 prototype for reusable proof-of-work tokens, gains posthumous recognition as one of Bitcoin's most important direct precursors.
Hal Finney's famous retrospective on his early involvement with Bitcoin, his interactions with Satoshi, and his battle with ALS. One of the most celebrated posts in Bitcoin history.
Cross-cutting architecture comparison across every subsystem: Satoshi's v0.1 (January 2009) side by side with modern Bitcoin Core v27+, with split diagrams and domain tables.
How the Bitcoin ecosystem layers above and around the base chain: Lightning payment channels, federated sidechains, L1 envelope extensions, and mining pool architectures.
How Bitcoin uses elliptic-curve keys, digital signatures, hash functions, and deterministic derivation to secure ownership without trusted third parties.
Bitcoin's threat model mapped end-to-end: what the protocol trusts, what it defends against, how each attack is countered, and where open risks remain.