Abstract: Some embodiments described herein relate to a computer implemented method that includes performing a first work step associated with a first activity and with a first data product and performing a second work step associated with a second activity and associated with a second data product. A first chain of trust between the first work step and the second work step can be defined by defining a second manifest document that is associated with the second data product and that references a first manifest document associated with the first data product. An immutable data structure representing a second chain of trust independent of the first chain of trust can be defined by submitting the first manifest document and the second manifest document to a distributed ledger for validation.

Abstract: Some embodiments described herein relate to a computer implemented method that includes performing a first work step associated with a first activity and with a first data product and performing a second work step associated with a second activity and associated with a second data product. A first chain of trust between the first work step and the second work step can be defined by defining a second manifest document that is associated with the second data product and that references a first manifest document associated with the first data product. An immutable data structure representing a second chain of trust independent of the first chain of trust can be defined by submitting the first manifest document and the second manifest document to a distributed ledger for validation.

Abstract: A software agent is provided which executes instructions on a local user's computer to retrieve potentially changing information content from remote target sources, including web pages, over a computer network, such as the Internet. Different types of software agents are available to retrieve different types of information content from remote sites. Agent types include a smart agent, a search agent, a custom agent for detailed tasks and an RSS agent for retrieving structured XML format documents from remote Internet sites. Information retrieved by the agents is formatted and stored locally for presentation in a publication on the local computer. Publication templates can display target content retrieved by multiple agents from many different remote target pages.