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Agents2026-08-06 · source-backed
arXiv 2608.03421 runs 120 five-agent environments where partial observations jointly determine one correct answer. Across three multi-agent systems, aggregate truth recovery fell to 14.17% with a single deceptive evidence holder. Process tracing shows a false testimony is adopted more readily than a truthful one, propagates to higher orders, and persists through honest agents after the deceiver leaves the conversation. Adding observers suppressed wrong consensus without improving truth recovery. Voting and debate don't aggregate evidence, they amplify whoever speaks first with confidence.
Each link below shares sources, entities, or timing with this story.
Shared entity: Adding / Same source domain / Shared topic / Earlier coverage
Both cover Adding; reported by the same outlet (arxiv.org); overlapping topics (adding, agent, aggregate).
Both cover Adding; reported by the same outlet (arxiv.org); overlapping topics (adding, agent).
Both cover Adding; reported by the same outlet (arxiv.org); overlapping topics (adding, agent).
Shared entity: Voting / Same source domain / Shared topic / Earlier coverage
Both cover Voting; reported by the same outlet (arxiv.org); overlapping topics (agent, multi-agent).
Shared entity: Adding / Same source domain / Shared topic / Earlier coverage
Both cover Adding; reported by the same outlet (arxiv.org); overlapping topics (adding, agent).
Shared entity: Adding / Same source domain / Earlier coverage / Tension
Both cover Adding; reported by the same outlet (arxiv.org); earlier Adding coverage from 2026-03-22.
Shared entity: Adding / Same source domain / Earlier coverage
Both cover Adding; reported by the same outlet (arxiv.org); earlier Adding coverage from 2026-08-03.
Both cover Adding; reported by the same outlet (arxiv.org); earlier Adding coverage from 2026-08-02.