Authentication of data in the field of indicate field, e.g., works of art, financial transactions, medical records, etc. using blockchain technology; Computer software design, computer programming, and maintenance of computer software; Consulting services in the field of software as a service (SAAS); Design and development of computer software for indicate function, e.g., database management, cloud storage of data, etc.; Designing and creating web sites for others; Infrastructure as a service (IAAS) services, namely, hosting servers for use by others; Outsource service provider in the field of information technology consulting relating to installation, maintenance and repair of computer software; Outsource service providers in the field of information technology relating to installation, maintenance and repair of computer software; Provision of information relating to computer programming via a website; Software as a service (SAAS) services featuring software for specify the function of the programs, e.g., for use in database management, for use as a spreadsheet, for word processing, etc. and, if software is content - or field-specific, the field of use; Software as a service (SAAS) services featuring software using artificial intelligence for specify the function of the programs, e.g., use in software development, machine learning, facial and speech recognition, etc. and, if program is content- or field-specific, specify the content or field of use; Software as a service (SAAS) services, namely, hosting software for use by others for specify the function of the programs, e.g., use in database management, use as a spreadsheet, word processing, etc. and, if software is content- or field-specific, the field of use; Technological consultation in the technology field of identify the field, e.g., computer hardware systems; Upgrading of computer software