Timechain Wiki

Bitcoin Wiki

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Bitcoin Wiki (en.bitcoin.it) is the original community-maintained encyclopedia of Bitcoin — a public MediaWiki that opened on 16 December 2010 and remains actively edited (last main-page revision January 2026). It is the oldest broad reference for Bitcoin's technical specifications, protocol mechanics, vocabulary, and how-to material, non-commercial and open to public editing under a Creative Commons licence, and multilingual across nine-plus languages. Register: Foundational → Advanced — a reader wanting a specific protocol detail, script opcode, or historical term goes here to look it up, not to be taught a path. It matters as the community's oldest reference layer and a load-bearing citation source for the rest of the ecosystem, carrying the explicit caveat that public-editable material "may be outdated, incorrect, or outright malicious at times" — a reference to check against, not to trust blindly.

Level

Foundational → Advanced. The wiki is a lookup reference, not a curriculum. Its entries assume a reader who already knows what they are looking for — a specific opcode, a term of art, a protocol parameter, a historical episode — and wants the community’s accumulated documentation on it. The technical-specification and original-research pages sit firmly at the Advanced end; the glossary and getting-started material are Foundational. There is no guided track, so a true newcomer is better served starting at bitcoin.org or Saylor Academy - Bitcoin for Everybody and coming here to look things up.

Why this source matters

Bitcoin Wiki is the ecosystem’s oldest general reference, and for years it was the only one. Opened barely two years after the whitepaper, it accumulated the community’s collective documentation of the protocol before official developer docs, mempool explorers, or curated learning platforms existed. Much of the technical vocabulary and many of the canonical explanations that later resources inherited were first written down here — which is why the wiki remains a frequently-cited upstream source across the rest of §16 and beyond.

Its second contribution is structural. As a public MediaWiki under a Creative Commons licence, owned by no company and editable by anyone, it embodies the same credible-neutrality instinct that runs through Bitcoin itself: no vendor controls the reference, and the content is free to fork, mirror, and reuse. That openness is also its central weakness — the same public editing that keeps it comprehensive means no editorial guarantee of accuracy — but the tradeoff is a deliberate, Bitcoin-native one: a maximally open commons over a curated authority.

Bibliographic details

  • Title: Bitcoin Wiki (en.bitcoin.it)
  • URL: en.bitcoin.it
  • Format: Public MediaWiki encyclopedia (community-editable)
  • Opened: 16 December 2010 (successor to an earlier Martti Malmi dokuwiki; reinstated on MediaWiki)
  • Maintenance: Community volunteers and wiki staff (contactable via IRC); no corporate owner
  • Funding model: Non-commercial; community-run, no advertising
  • Licence: Creative Commons Attribution 3.0 (changed from WTFPL in 2010)
  • Languages: Multilingual — English, French, Chinese, German, Hebrew, Russian, Spanish, Italian, Polish, and others
  • Level: Foundational → Advanced
  • Bitcoin scope: Bitcoin only

What the site provides

  • Technical specifications — protocol-level documentation: transaction and block formats, Script opcodes, address types, difficulty and target, and the wire protocol. A frequent look-up layer for developers and technical readers.
  • Vocabulary and concept pages — a broad glossary and explanatory entries for core terms, mechanisms, and jargon a reader encounters elsewhere.
  • How-to and getting-started material — practical guides on wallets, mining, and running software, of varying age.
  • Original research and analysis — the wiki explicitly goes beyond encyclopedia scope to host analysis and community-authored research, some of it load-bearing and some speculative.
  • Historical entries — documentation of early episodes, terms, and projects, useful as a period reference cross-checked against the founding record.
  • Multilingual mirrors — parallel-language versions extend the reference beyond English.

How to engage this resource

As a look-up reference. The highest-value use is targeted: you have a specific opcode, term, parameter, or historical detail in mind and want the community’s documentation on it. Search the wiki, read the entry, then verify anything load-bearing against a primary or maintained source.

As an upstream-citation check. Because so much of the ecosystem’s explanatory language traces back here, the wiki is useful for seeing where a widely-repeated framing originated — and, occasionally, for catching that a “commonly known” fact is an old wiki claim that was never corrected.

With source-critical care. Treat the wiki the way you would any public encyclopedia, only more so: it is old, unevenly maintained, and its own About page warns the material may be stale, wrong, or malicious. Cross-check technical specifics against developer.bitcoin.org, the BIPs, or Bitcoin Core release notes before relying on them.

Counter-arguments and tensions

Public-editable means unauthoritative. The wiki’s own About page states plainly that the material “may be outdated, incorrect, or outright malicious at times.” There is no editorial guarantee, no review gate, and no accountable maintainer for any given page. Its openness is a feature for a credibly-neutral commons and a liability for a reader who needs to trust a specific claim — the reference is a starting point, not a final word.

Staleness and partial supersession. Many pages predate the modern protocol and have not kept pace; developer documentation, Bitcoin Optech, and maintained explainer sites have superseded the wiki for current technical accuracy. Its comprehensiveness is historical as much as current, and the reader must judge each page’s age.

Signal-to-noise in “original research.” The decision to host analysis and original research beyond encyclopedia scope means genuine reference material sits alongside speculative or contested community content, not always clearly distinguished. This is the classic open-wiki tradeoff, and Bitcoin’s adversarial, incentive-laden subject matter sharpens it.

Where to find this source

Place in the broader Bitcoin canon

Open questions

  • As maintained resources (developer.bitcoin.org, Bitcoin Optech, mempool and explorer sites) cover current protocol reality with editorial rigour the wiki lacks, does en.bitcoin.it’s role narrow to a historical reference and citation archive, or does its breadth keep it a live first-stop look-up?
  • Can a public-editable commons with no accountable editor stay accurate enough to be trusted on adversarial technical topics, or does credible neutrality here necessarily come at the cost of reliability the reader must always compensate for?

What the wiki documents

Maintained resources to verify against

Other reference resources in §16

Graph View

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