Addressing the Challenges of Biological Passport Through Blockchain Technology

A biological passport collects the physiological parameters of athletes, through various blood and urine tests over a period of time. This passport includes two modules: the hematological and the endocrine (which also includes the steroidal data). A mathematical algorithm is applied to these data to calculate the profile of the person. This profile establishes the range of values within the biological controls and tests should move and if there were any anomaly in order to detect doping since the normal limits are exceeded. This work describes a distributed registration method based on blockchain technology to provide a solution to the previous challenges with clear benefits for all participants. The purpose of the proposed blockchain network is to consolidate a tamper-proof and distributed registry database, where anti-doping processes can be implemented through the development of distributed applications and smart contracts. Blockchain technology is a promising disruptive technology to address government policies and access control rules by a consortium of sports organizations in order to conduct the continuous doping controls and health revisions of athletes.