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DelSA attacked the evidence coherence trap with a 30,706-article benchmark built to catch fake news that reorders real events into a false chronology

AspireAI community · arXiv (2610.36764)
Some fake news does not invent events, it reorders them. Every event in the article can be true while the chronology between them is false, and when the same entity recurs across time, a retriever can return evidence that is locally coherent but drawn from the wrong period, which verifies the article instead of catching it. DelSA names this the evidence coherence trap and attacks it with a self-updating evidence-selection agent: an LLM characterises candidate evidence, a verifier-trained reranker balances topical relevance against timeline consistency, and the final classifier compares the chronology implied by the article against the chronology implied by the evidence to surface global temporal conflicts. To measure it they built ChronoFake, a source-disjoint benchmark of 30,706 articles from temporally anchored real events that separates deliberate temporal manipulation from valid narration including flashbacks. DelSA outperforms existing methods on ChronoFake and stays competitive on PolitiFact and GossipCop, though the abstract gives no headline number and 'competitive' on the two standard benchmarks is not a win there.
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