Crypto Gloss

Craig Wright

Craig Wright is an Australian computer scientist and Chief Scientist of nChain who has publicly claimed since May 2016 to be Satoshi Nakamoto — the pseudonymous creator of Bitcoin — a claim broadly rejected by the Bitcoin development community, cryptographers, and courts; in March 2024, UK High Court Justice James Mellor issued an explicit ruling that “Dr. Wright is not Satoshi Nakamoto” after an extensive trial, and Wright has faced multiple legal proceedings in multiple jurisdictions including a Florida civil case in which Kleiman estate sued for half of the alleged early Bitcoin holdings; Wright is associated with Bitcoin SV (BSV), a fork of Bitcoin Cash that he promotes as the “true Bitcoin.”

Background

Craig Steven Wright (born 1970, Brisbane, Australia) holds multiple academic degrees including a PhD in Computer Science from Charles Sturt University. He worked in IT security and consulting in Australia, including time at Ernst & Young. He has a long history of claiming extensive academic credentials, some of which have been disputed.

The Satoshi Nakamoto Claim

In May 2016, Wired and Gizmodo published simultaneous reports asserting Craig Wright might be Satoshi Nakamoto, based on leaked emails and documents (later disputed as forgeries or misrepresentations). Wright subsequently made a public blog post claiming to be Satoshi and attempted to provide a “proof” — signing a known early blockchain message. However, cryptographers quickly noted that his “proof” used an existing publicly known signature rather than generating a new one with Satoshi’s private keys, providing no actual cryptographic evidence. When asked to provide genuine proof by moving early Bitcoin or signing a fresh message, Wright declined.

Prominent figures who publicly rejected Wright’s claim include John McAfee, Andreas Antonopoulos, Dan Kaminsky, Gavin Andresen (who initially endorsed the claim before retracting), and virtually the entire Bitcoin Core development community.

Bitcoin SV (BSV)

Wright is the primary advocate for Bitcoin SV (Satoshi’s Vision), a fork of Bitcoin Cash that occurred in November 2018 during the “Hash War” between Craig Wright’s faction (CoinGeek/nChain) and Roger Ver/Jihan Wu’s faction (becoming BCH ABC). BSV implemented:

  • Unlimited block size (initially 128MB, later uncapped).
  • Restoration of early Bitcoin script opcodes (allegedly to restore “original Bitcoin”).
  • Heavy opposition to SegWit and the Lightning Network.

BSV experienced multiple delistings from major exchanges including Binance, ShapeShift, Kraken, and others after persistent controversy surrounding Wright’s claims and threats of lawsuits.

Legal Proceedings

Wright has pursued aggressive legal action against those who call him a fraud:

  • Kleiman v. Wright (Florida, US) — The estate of Dave Kleiman (an early Bitcoin researcher who died in 2013) sued Wright claiming he and Kleiman jointly mined early Bitcoin and Wright misappropriated Kleiman’s share. In December 2021, a jury found Wright liable for conversion and awarded the Kleiman estate $100 million (in intellectual property, not Bitcoin).
  • COPA v. Wright (UK, 2024) — The Crypto Open Patent Alliance (COPA), a coalition including Jack Dorsey’s Block, sued Wright to establish definitively he is not Satoshi. Following a month-long trial in February–March 2024, Judge James Mellor ruled in March 2024 that Wright is not Satoshi Nakamoto, that he “lied to the court” and produced fraudulent documents. The ruling also has implications for dozens of related lawsuits Wright had filed against Bitcoin developers and companies.
  • Multiple UK suits — Wright filed suits against Bitcoin Core developers, Blockstream, Coinbase UK, and others claiming intellectual property rights over Bitcoin. The COPA ruling effectively undermined these cases.

Key Dates

  • 2016 (May) — Wired/Gizmodo publish articles suggesting Wright is Satoshi. Wright makes a blog post claiming to be Satoshi but provides cryptographically invalid “proof.”
  • November 2018 — Bitcoin Cash “Hash War” results in BSV fork.
  • December 2021 — Kleiman v. Wright jury verdict: Wright ordered to pay $100M to Kleiman estate.
  • 2021–2023 — Wright files multiple suits in UK against Bitcoin developers.
  • February–March 2024 — COPA v. Wright trial at UK High Court.
  • March 14, 2024 — Judge Mellor rules Wright is not Satoshi Nakamoto; Wright found to have created fraudulent documents.

Common Misconceptions

  • “The Kleiman verdict proved Wright is Satoshi.” — The Kleiman case did not adjudicate Wright’s Satoshi claim; the jury awarded damages for conversion/theft from a partnership with Kleiman, not for the Satoshi identity question.
  • “BSV is the original Bitcoin.” — Bitcoin SV is a fork of a fork (Bitcoin Cash) and shares no technical continuity with Bitcoin beyond a common protocol ancestor. The Bitcoin Core chain (BTC) has by far the longest continuous developer and economic adoption.
  • “Courts have not ruled on the Satoshi question before COPA.” — The March 2024 COPA ruling was the first explicit judicial determination of the question.

Last updated: 2026-04

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