The Horcrux Protocol: A Method for Decentralized Biometric-based Self-sovereign Identity. - Asem Othman; John Callahan (IJCNN, 2018)

The Horcrux Protocol: A Distributed Mobile Biometric Self-sovereign Identity Protocol. - Asem Othman; John Callahan (Selfie Biometrics, 2019)

Using Biometrics to Fight Credential Fraud. - Daniel Hardman; Lovesh Harchandani; Asem Othman; John Callahan (IEEE Commun. Stand. Mag., 2019)