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

Claim 28:
29. The system of claim 20, wherein the one or more computers are part of a tracking system, wherein the digital signature is a first digital signature, wherein the one or more computers are operable to obtain the first set of information by being operable to receive the hundreds of values, wherein the one or more computers are operable to obtain the second set of information by being operable to identify a current set of criteria for the diamond material at a current location in a supply chain, wherein the one or more computers are operable to send the first and second sets of information by being operable to send 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 one or more computers are operable to:
verify the first digital signature using a public key portion of the asynchronous encryption key pair used by the verification computer system;
retrieve 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;
verify the second digital signature using the public key portion of the asynchronous encryption key pair used by the verification computer system; and
initiate the addition to the distributed digital ledger only after verification of both the first digital signature and the second digital signature.