Fully Anonymized Digital Health Data Acquisition in a Research Partnership Using a Blinded Deidentification Proxy in the HerzFit App: Implementation Study

Lara Marie Reimer   ^{1, 2} , Dr rer nat ;   Leon Nissen   ¹ , MSc ;   Fabian Starnecker   ^{3, 4} , Dr med ;   Olga Stepanova   ⁵ , LLM ;   Florent Dufour   ⁶ , MSc ;   Ruth Ney   ⁷ ;   Sinann Al Najem   ⁷ , Dr rer med ;   Heribert Schunkert   ^{3, 4, 7} , Dr med ;   Stephan M Jonas   ^{1, 2} , Dr rer medic

¹ Institute for Digital Medicine, University Hospital Bonn, University of Bonn, Bonn, North Rhine-Westphalia, Germany

² School for Computation, Information and Technology, Technical University of Munich, Garching bei München, Germany

³ Department of Cardiology, German Heart Centre Munich, University Hospital of the Technical University of Munich, Munich, Germany

⁴ Partner Site Munich Heart Alliance, German Centre for Cardiovascular Research, Berlin, Germany

⁵ ByteLaw Attorneys, Frankfurt am Main, Germany

⁶ Leibniz Supercomputing Centre, Garching bei München, Germany

⁷ Deutsche Herzstiftung, Frankfurt am Main, Germany