@article{biosignalfingerprintingacrossmodalppgecg,
  title = {Biosignal Fingerprinting: A Cross-Modal PPG-ECG Foundation Model},
  author = {Zhangdaihong Liu and Chang Liu and Fenglin Liu and Yixuan Chen and Yang Yang and David A. Clifton and Xiao Gu},
  year = {2026},
  eprint = {2605.09579},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2605.09579},
}