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: Some embodiments described herein relate to a computer implemented method that includes receiving a token that includes a reference to a first encrypted archive recorded in a distributed ledger. The first encrypted archive can be decrypted using the token to retrieve a first manifest document, which can be associated with a first activity of the complex transaction. The first manifest document can identify a second encrypted archive. The second encrypted archive can be decrypted using the token to retrieve a second manifest document, which can be associated with a second activity of the complex transaction. The second manifest document can include a reference to a data product, which can be retrieved. A continuity of the complex transaction between the second activity and the first activity can be verified based on the data product.

Abstract: Some embodiments described herein relate to a computer implemented method that includes receiving a token that includes a reference to a first encrypted archive recorded in a distributed ledger. The first encrypted archive can be decrypted using the token to retrieve a first manifest document, which can be associated with a first activity of the complex transaction. The first manifest document can identify a second encrypted archive. The second encrypted archive can be decrypted using the token to retrieve a second manifest document, which can be associated with a second activity of the complex transaction. The second manifest document can include a reference to a data product, which can be retrieved. A continuity of the complex transaction between the second activity and the first activity can be verified based on the data product.