21wiki is a Bitcoin knowledge base grounded in the immutable 21ideas.org source library (articles, books, and series) and fundamental Bitcoin-only materials organized into a navigable map.
About the project
21ideas.org is a Bitcoin-only education project. Over time it accumulated a large source library: books, long-form series, practical guides, and conceptual explainers across economics, protocol, history, privacy, and security.
This wiki does not replace the original materials. It is a structured map and entry point: if a topic clicks, follow the links and read the primary sources referenced by each page.
How to read
If you are just getting started
- Read Bitcoin — a baseline understanding of the protocol
- Use Glossary — definitions for common terms
- Read Money — why the concept of money matters
- Continue with Inventing Bitcoin or Sovereignty Through Mathematics — both compress the essentials into a short book
If you care about history
- Pre-Bitcoin: The Cypherpunk Era — where Bitcoin came from
- Cypherpunks — people and ideas that shaped Bitcoin
- Genesis Files — deep dives into every major precursor
- Bitcoin Timeline — key events in chronological order
- The Blocksize War (2015-2017) — the scaling conflict that defined Bitcoin governance in practice
If you care about economics
- Money — what money is and how it evolves
- Cantillon Effect — how inflation redistributes wealth
- Scarcity — why (21,000,000) matters
- Gradually, Then Suddenly — Parker Lewis’s essay series
If you care about philosophy and culture
- Philosophy Overview — philosophical foundations of Bitcoin
- 21 Ways — 21 frames for understanding Bitcoin
- Bitcoin for Dissidents — Bitcoin as an escape from coercion
- Bitcoin’s Seven Network Effects — why the network hardens over time
If you want to start using Bitcoin
- Buying Bitcoin — acquiring bitcoin
- Storage & Self-Custody — holding your own keys safely
- Lightning Tools — everyday Lightning payments
- Security — the threat model of self-sovereignty
- Privacy in Practice — coin control, CoinJoin, Tor
- Running a Bitcoin Node — independently verifying the rules
If you care about the technical side
- Proof of Work — the consensus mechanism
- Mining — how blocks are produced
- UTXOs (Unspent Transaction Outputs) — Bitcoin’s balance model
- SegWit (Segregated Witness) and Taproot — major protocol upgrades
- Bitcoin Protocol Stack — layered architecture
- Lightning Network — payment channels on top of the base layer
Wiki structure
wiki-en/
├── index.md ← directory of all pages
├── overview.md ← this file
├── glossary.md ← term definitions
├── concepts/ ← 35 conceptual pages
├── entities/ ← 12 people / groups
├── history/ ← 3 history pages
├── philosophy/ ← 1 philosophy page
├── books/ ← 8 books
├── series/ ← 7 article series
├── practice/ ← 5 practical guides
└── topics/ ← 2 topic pages
About quality
Each page includes YAML frontmatter metadata:
quality: "synthesized"— a topic distilled from multiple sourcesquality: "reference"— a description of a specific source (book, series)completeness: "high"/"medium"/"low"— how fully the topic is covered
Pages marked completeness: "medium" or "low" can be expanded as more sources are ingested.
Navigation in Obsidian
In Obsidian, use:
- Graph view — a visual map of connections between pages
- Backlinks — what links to the current page
- wikilinks — navigation between articles
- Dataview (plugin) — query pages by tags and metadata
Get involved
- Start here: Contribute to 21wiki
- If the wiki helped you: Support 21wiki
- Suggest a topic or report an error: open a GitHub Issue