Electronic signature authorization services; Electronic signature verification services; Computer services in relation to electronic signature verification and authorization services; Software as a service (SAAS) services featuring software for the issuance of legally binding electronic signatures for documents or files via a global computer network; Software as a service (SAAS) services featuring software for signing legal documents; Providing software or online services for signing electronic documents; Providing software or online services for generating, obtaining, managing, capturing, storing, processing, and viewing electronic signature and electronic signature data; Secure electronic storage of files and documents for others; Application service provider featuring application programming interface software for sending electronic signature requests, completing contracts, opening accounts, confirming deliveries, completing forms, electronically signing documents, automating forms and form-field data, tracking documents in real-time, routing and controlling document workflow, configuring platform notifications, downloading digitally-sealed documents, and enforcing multi-factor authentication