According to the source, AI writing leaves measurable signals traders can use to vet headlines, and GLTR research from Harvard and MIT-IBM in 2019 shows model-generated text favors high-probability tokens with low burstiness, which is a practical detection cue for news feeds, source: Gehrmann et al., Harvard and MIT-IBM, 2019. DetectGPT from Stanford in 2023 identifies AI text by measuring the curvature of log-likelihood around the passage, providing a zero-shot detector effective on news-style prose, source: Mitchell et al., Stanford, 2023. Cryptographic watermarking at generation time enables downstream auditing with limited quality loss, as demonstrated by Princeton’s LLM watermark framework that embeds detectable token patterns, source: Kirchenbauer et al., Princeton, 2023. Off-the-shelf classifiers remain unreliable and risk false positives on human text, as OpenAI reported when it deprecated its AI Text Classifier for low accuracy in July 2023, source: OpenAI blog, July 2023. For trading impact, strict verification matters because false headlines have moved BTC intraday, as Reuters reported when a bogus spot Bitcoin ETF post briefly whipsawed prices on Oct 16, 2023, source: Reuters, Oct 16, 2023. The FBI also warns that investment fraud increasingly leverages sophisticated digital content with heavy crypto losses, underscoring the need to filter AI-generated promos in market workflows, source: FBI Internet Crime Complaint Center 2023 Annual Report.