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The Bitcoin whitepaper - Source document

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This is the source-document reference for Bitcoin: A Peer-to-Peer Electronic Cash System — Satoshi Nakamoto's nine-page whitepaper published October 31, 2008. A local PDF copy is embedded alongside this note; external authoritative copies are listed for verification and citation. For the publication-day narrative and historical reception, see The Bitcoin whitepaper - History. For the chapter-by-chapter conceptual walkthrough, see The Bitcoin whitepaper - Explainer. This page is the primary-source archive node of the whitepaper triad.

The document

The embedded local PDF copy (The Bitcoin whitepaper - Source document.pdf) is the canonical archival reference; the external links below are listed for verification, citation, and version-comparison purposes.

Where to access the whitepaper externally

Canonical hosted copies (recommended):

  • bitcoin.org/bitcoin.pdf — the canonical primary hosting. The bitcoin.org domain was registered August 18, 2008 by Satoshi (treated in The Bitcoin whitepaper - History); the PDF at this URL is the version Satoshi linked from the original metzdowd-list announcement.
  • bitcoincore.org/bitcoin.pdf — mirror hosted by the Bitcoin Core project.
  • nakamotoinstitute.org/library/bitcoin/ — Nakamoto Institute’s library archive; includes formatted HTML version alongside PDF.

Archival hosting:

  • The metzdowd cryptography mailing list archive (October 31, 2008 post) — the original announcement-and-link. Multiple mirrors preserve this archive.
  • archive.org — the Internet Archive holds multiple captures of bitcoin.org/bitcoin.pdf across the protocol’s history; useful for verifying version invariance.

Local archival option:

  • The PDF can be downloaded from bitcoin.org/bitcoin.pdf and archived locally for offline access and version-pinned reference.

Bibliographic details

  • Title: Bitcoin: A Peer-to-Peer Electronic Cash System
  • Author: Satoshi Nakamoto (pseudonymous; see Satoshi Nakamoto)
  • Date: October 31, 2008
  • Length: 9 pages, 12 sections plus abstract and references
  • First publication venue: Posted to the metzdowd cryptography mailing list at 2:10 PM EST on October 31, 2008, with a link to a PDF hosted at bitcoin.org/bitcoin.pdf.
  • License status: No formal license attached; treated as effectively public-domain by the broader community given Satoshi’s pseudonymous withdrawal and the absence of any rights-enforcement entity.

Structure of the document

For navigation purposes, the whitepaper’s twelve sections are:

  1. Introduction — frames the problem of trusted financial intermediaries.
  2. Transactions — defines a transaction as a chain of digital signatures.
  3. Timestamp Server — introduces chained-hash structure for tamper-evident history.
  4. Proof-of-Work — integrates Hashcash-style proof-of-work into the timestamp server.
  5. Network — describes the peer-to-peer broadcast protocol.
  6. Incentive — introduces the block-reward mechanism for honest mining.
  7. Reclaiming Disk Space — addresses pruning via Merkle-tree root retention.
  8. Simplified Payment Verification — the SPV mechanism for scaling-via-light-clients.
  9. Combining and Splitting Value — the transaction-output structure for sub-coin denominations.
  10. Privacy — the pseudonymity-but-not-anonymity privacy framework.
  11. Calculations — probabilistic-finality analysis (attacker hashrate share vs reversal probability).
  12. Conclusion — two paragraphs closing without rhetorical flourish.

References cited: Eight references including W. Dai (“b-money”, 1998), A. Back (“Hashcash”, 2002), H. Massias / X. S. Avila / J.-J. Quisquater (timestamp server, 1999), S. Haber / W. S. Stornetta (chained hashing, 1991), D. Bayer / S. Haber / W. S. Stornetta (efficient timestamping, 1993), R. C. Merkle (Merkle trees, 1980), and others.

The deep textual treatment of each section’s content is in The Bitcoin whitepaper - Explainer; this source-document page is for archival access and quick navigation.

Edition and translation notes

The whitepaper has been translated into 40+ languages by community efforts; the multi-language hosting is at bitcoin.org/en/bitcoin-paper (with language-switcher). The English original is the canonical text; translations are useful for accessibility but should not be cited as the canonical version.

The document has no published edition history — there is one canonical version, published October 31, 2008, unchanged since. Various typesetting and formatting variations exist across hosted copies, but the textual content is invariant.

A widely-noted formatting curiosity: some hosted PDF versions have minor differences in pagination and spacing due to PDF-rendering differences. The text content is the same; the visual presentation varies marginally.

How to cite this source

Standard citation form:

Nakamoto, S. (2008). Bitcoin: A Peer-to-Peer Electronic Cash System. Retrieved from https://bitcoin.org/bitcoin.pdf

Specific-passage citation:

The document does not use line numbers or paragraph numbers. Section numbers (1-12) and abstract are the standard citation anchors. Page numbers vary across hosted versions and should not be relied upon for cross-version citation.

Why this source matters

This is the founding document of the entire Bitcoin project. Every other note derives — directly or indirectly — from claims made or implied in this nine-page PDF. The historical-narrative dimension of its publication is treated in The Bitcoin whitepaper - History; the conceptual-explainer dimension is treated in The Bitcoin whitepaper - Explainer; this source-document page is the archival-access dimension. Together the three pages form the whitepaper triad — the canonical exemplar of the naming-suffix convention codified in _Brief.md §3.

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