Vitalik Challenges AI to Find His Anonymous Ethereum Document Through Writing Style
Ethereum co-founder Vitalik Buterin has long participated in protocol governance and technical discussions through public writings. By deliberately publishing a document anonymously, he has turned authorship identification into an experiment. The challenge tests whether large language models can sift through the noise of hundreds of Ethereum files and identify an author by word choice, sentence structure and patterns of argument, while highlighting how AI could erode online anonymity.
Buterin recently issued a public challenge to the AI community to use writing-style analysis to identify an Ethereum document he published anonymously in early 2026 from among hundreds of candidate files. No prize or deadline has been announced. For now, the experiment is focused on observing how well models can identify authors in large bodies of text and assessing the practical barriers to tracing anonymous writers.
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The history behind this eventVitalik’s Test of AI’s Ability to Pierce Online Anonymity Deemed a Failure After 13 Days
Ethereum co-founder Vitalik Buterin deliberately contributed to an Ethereum proposal document under a pseudonym to test claims that AI can pierce online anonymity by analyzing writing style. The experiment touches on identity privacy in open-source collaboration and aligns with his roadmap to make privacy a top-level objective of the Ethereum protocol.
Thirteen days after the challenge was made public, initial reports said no one had used AI to correctly identify Vitalik’s anonymous contribution, making the test a direct counterexample to claims that AI will inevitably destroy anonymity. However, the headline of the latest related report says he has confirmed that AI successfully identified him, contradicting the event summary. Without a disclosed date, model or verification record, the final conclusion remains unclear.
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