Patent ID: 11946870
Assignee: MAT INTERNATIONAL HOLDINGS, LLC
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 10:
11. The method of claim 2, wherein the computer is part of a tracking system, wherein the digital signature is a first digital signature, wherein obtaining the first set of information comprises receiving the hundreds of values, wherein obtaining the second set of information comprises identifying a current set of criteria for the diamond material at a current location in a supply chain, wherein sending the first and second sets of information comprises sending the hundreds of values and the current set of criteria for the diamond material at the current location in the supply chain, and wherein the method further comprises:
verifying the first digital signature using a public key portion of the asynchronous encryption key pair used by the verification computer system;
retrieving from the distributed digital ledger (a) previously produced hundreds of values for channels of the spectrum of electromagnetic radiation emitted by the diamond material in response to a previous irradiation of the diamond material at a previous location in the supply chain and (b) a second digital signature of at least the previously produced hundreds of values, the second digital signature having been created to verify the diamond material at the previous location in the supply chain;
verifying the second digital signature using the public key portion of the asynchronous encryption key pair used by the verification computer system; and
initiating the addition to the distributed digital ledger only after verification of both the first digital signature and the second digital signature.