A frozen multilingual benchmark for evaluating citation- and reference-verification systems. It contains 340 labeled references with ground truth known by construction:

Ground-truth class Count Construction

EXISTS_CORRECT 160 Real works confirmed by DOI and title in OpenAlex and Crossref

EXISTS_CORRUPTED 100 Real works with exactly one controlled metadata corruption

FABRICATED 80 Constructed references whose invented… See the full description on the dataset page: https://huggingface.co/datasets/danielnichiata/citation-verification-benchmark.