Software for digitally signing documents, used by professionals to certify a document by affixing their seal to it in combination with their digital signature

Computer services, namely, identity authentication services for individuals; programming and management of digital certificates for the purposes of digital communication authentication and the authentication of digital signatures in electronic transactions or communications on the Internet or on another computer network; computer services, namely, digital identity certification and development, design, implementation, testing, analysis, and consulting services in the field of security, access, authorization, authentication, and identification systems for computers, computer hardware, and computer networks; computer services and related services, namely, Internet security and computer network management services consisting of verification, authentication, distribution, and management of public key infrastructure, issuance, verification, and management of digital certificates, and integration with business software. Development, implementation, integration, and operation of computer systems, methods and procedures for issuing and managing digital certificates