42 Software as a service (SAAS) services featuring temporary use of non-downloadable software for use in connecting internet of things (IoT) devices based on distributed ledger architecture for enhanced security; Software as a service (SAAS) services featuring secure cross-silo communication of internet of things (IoT) devices; Software as a service (SAAS) services featuring temporary use of non-downloadable software for use in conducting blockchain-based data management and data analysis; Platform as a service (PAAS) services featuring temporary use of non-downloadable software platforms for use in conducting blockchain-based data management, data analysis in the fields of internet of things (IoT) devices; Platform as a service (PAAS) services featuring temporary use of non-downloadable software platforms for use in collecting data from, operating and managing internet of things (IoT) devices used in business, manufacturing, retail, energy, and home use; Software as a service (SAAS) services featuring temporary use of non-downloadable software for use in collecting data from, operating and managing int; ernet of things (IoT) devices used in business, manufacturing, retail, energy, and home use; Software as a service (SAAS) services; Platform as a service (PAAS) services