Abstract: Computer-implemented method and system of generating an authentication seal. The method includes receiving, at a memory of an authentication agent server computing device, a data record submittal from a client agent having an associated client signing key and a client verification key, the data record submittal including at least an identifier (R-ID) and at least one of a data record and a record hash (R-HSH) of the data record, the R-ID being uniquely associated with the data record; associating, using the one or more processors, the at least one of the data record, the R-ID, the R-HSH and a client signature with a unique identifier (B-ID) of a location within an immutable storage medium, the client signature based on at least one of the client signing key and the client verification key; and generating, using the one or more processors, an authentication seal based at least in part upon the at least one of the data record and the R-ID, the R-HSH and the B-ID.