System and method for performing user authentication

A method, comprising:

• receiving physical, behavioural and medical biometric data from a camera (fixed or mobile), by a centralised computer (“Anima Cloud”—a cloud-based strong authentication solution for software applications, peer to peer networks, not restricted to but including blockchain to authenticate users) using advanced mathematical calculations and machine learning, or artificial intelligence, personal information for a first person from a source, wherein the personal information for the first person includes Heart Rate Variability (HRV) biometric information (physical, behavioural and medical);
• receiving, by the centralised computer, a request to identify, authenticate or collect diagnostic readings of a person, wherein the request to authenticate includes further biometric information;
• comparing, by the centralised computer, the further biometric information with the Heart Rate Variability (HRV) biometric information;
• determining, by the centralised computer, a similarity measure based on the comparison of the further biometric information with the first historical biometric information;
• and determining, by the centralised computer, whether to authenticate the person, and whether the first and further biometric information is trusted biometric information based on the similarity measure, wherein the determination of whether to authenticate the person and whether the first and further biometric information is trusted biometric information is based on the similarity measure and an amount of time between when the first historical biometric was captured and when the received further biometric information was captured, and wherein the determination of whether to authenticate the person and whether the first and further biometric information is trusted biometric information comprises comparing, by the centralised computer, the determined similarity measure to a similarity measure threshold, wherein the similarity measure threshold is adjusted based on the amount of time between when the first historical biometric was captured and when the received further biometric information was captured in order to issue an “Anima ID.”