@article{searchtimecontaminationindeepresearchage,
  title = {Search-Time Contamination in Deep Research Agents: Measuring Performance Inflation in Public Benchmark Evaluation},
  author = {Yongjie Wang and Xinyue Zhang and Kunhong Yao and Zhiwei Zeng and Kaisong Song and Jun Lin and Zhiqi Shen},
  year = {2026},
  eprint = {2606.05241},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.05241},
}