digital image encryption services; authentication services; computer security services in the nature of managing digital certificates; encryption of digital images; digital archiving services; data authentication services via blockchain technology; electronic cryptology services in the nature of digital certificate and digital signature verification services; digital signature verification services [electronic cryptology services]; computer security services for managing digital certificates; electronic signature verification services using technology to authenticate user identity; data authentication via blockchain technology; computer security services in the nature of administering digital certificates; digital watermarking; digital forensic analysis; authentication, issuance and validation of digital keys; authentication, issuance and validation of digital certificates; computer security services in the nature of providing digital certificates; digital watermarking services; digital forensic science