CoverageBench-Negate is a paired benchmark resource for evaluating information coverage under controlled contradiction. It extends CoverageBench with negated nuggets and edited supporting documents while preserving topics, entities, and document context. The full dataset is hosted on Hugging Face at https://huggingface.co/datasets/pashaa/CoverageBench-Negate. This Zenodo record provides persistent citation metadata and a DOI for the resource.