Adapting Standards-of-Proof Analysis to AI-Agent Collusion: A Wigmore-Based Interactive Evidence Graph
Alexander Rumyancev
Submitted to AI Collusion Research Sprint. Sprint projects are early-stage work by participants, not Apart Research publications.
We built an interactive evidence graph for assessing whether a record shows collusion between AI agents. Evidence items pass admissibility and authenticity gates, receive an ordinal weight from 0 to 4, and aggregate into four elements under a weakest-link rule; the graph then reports the standard of proof the evidence meets. We compiled a base of twelve evidence types from recent published work and twelve case configurations, ran the graph on all of them, and released the graph, the dataset and the results publicly.

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@misc{rumyancev2026adapting,
title = {{Adapting Standards-of-Proof Analysis to AI-Agent Collusion: A Wigmore-Based Interactive Evidence Graph}},
author = {Alexander Rumyancev},
year = {2026},
month = oct,
note = {Submitted to AI Collusion Research Sprint, an Apart Research Sprint},
howpublished = {\url{https://apartresearch.com/sprints/projects/adapting-standardsofproof-analysis-to-aiagent-collusion-a-wigmorebased-interactive-evidence-graph-th1t}},
url = {https://apartresearch.com/sprints/projects/adapting-standardsofproof-analysis-to-aiagent-collusion-a-wigmorebased-interactive-evidence-graph-th1t}
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