Wu reportedly learned that Vitalik Buterin said that there is already a winner in the AI anonymous identification challenge he previously launched. He revealed that when he wrote the relevant documents in 2024, he first wrote in Chinese, then used the local Qwen2.5 to translate them into English and manually corrected them, but the AI still identified the author. Vitalik said that what the AI picked up was not ordinary phrasing, but “thinking habits” such as the way he explains mathematics and algorithms—habits that bypass his strategy of confusing only the writing style. Earlier, Vitalik publicly challenged others to use AI to find the Ethereum documents he wrote anonymously, to test whether AI is weakening network anonymity.