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References & Primary Sources

Last updated: September 3, 2026

A curated gateway to the primary sources our editors reach for first. It covers Bitcoin itself and the ground beneath it: computing hardware and semiconductors, supercomputing, AI and quantum computing, futures of computing, distributed systems, volunteer computing and number-theory searches including PrimeGrid, and blockchain design. For AI and LLM fact-checking, pair it with the source list at the end of each article.

Note: every link below leaves this site. Each linked site has its own terms and privacy policy.

Computing and semiconductor history

Original documents, museum records, and company filings tracing EDVAC, transistors, integrated circuits, microprocessors, GPUs, FPGAs, foundries, and back-end assembly and test. Claims of being “first” stay qualified, and vendor self-descriptions stay attributed.

Supercomputing, AI, quantum, and computing futures

Primary and authoritative material on current HPC measurements, plans around 2030, AI capability and work, quantum error correction and Bitcoin key recovery, and agent identity, payment and audit. We use it to keep measurements, plans, drafts, and editorial scenarios distinct.

Technical primary sources

Bitcoin protocol, improvement proposals, and core reference documentation. Edits for technical topics (blockchain / mining / transactions / wallets / Layer 2, etc.) start here.

Distributed systems, volunteer computing, number theory, and blockchain design

Primary papers and official project records tracing distributed-systems research before Bitcoin, scientific and number-theory computing from SETI@home, BOINC, and PrimeGrid, and permissionless and permissioned blockchain design.

Compute incentives, GPU markets, and space computing

Primary sources on volunteer-computing credit systems, cryptocurrency incentives, AI-driven GPU demand, and space-edge-computing demonstrations. We use them to separate documented systems, company disclosures and flown demonstrations from inference and future proposals.

Japan — regulation and tax

Official documents from the FSA and NTA. These are the primary sources for Japan-specific topics: the Payment Services Act, the crypto-asset exchange business, and taxation.

United States — regulation and tax

Official US agency documents. These are the primary sources for ETFs, spot Bitcoin ETFs, SEC actions, the Strategic Bitcoin Reserve, IRS rulings, and similar US topics.

EU and international bodies

EU MiCA regulation and international body guidance. Primary sources for global crypto-asset regulatory trends.

Statistics and market data

Neutral sources of measurement. We use them for network statistics such as difficulty, hashrate, and mempool size, rather than for price charts.

Historical events

Official and semi-official records of Bitcoin history and major incidents (Mt.Gox, FTX, Samourai, etc.).

Browse every article citation

This page is the curated starting set of primary sources our editors reach for first. The deduplicated Sources & Research Index lists every work actually cited by all 45 articles and the BIP index.

Open the Sources & Research Index