This invention has direct application to Conflict Minerals programs and due diligence strategy to comply with Section 1502 of the Dodd Frank Wall Street Reform and Consumer Protection Act. It provides a novel method for establishing the provenance determination of certain metals and traceability of their mineral origins. A method for analyzing a sample by passing a very high current density into a sample, introducing the process of electromigration in the sample, recording electromigration parameters, determining the electromigration activation energy from the parameters and comparing the measured activation energy of the sample to a reference library wherein each reference sample activation energy and its corresponding provenance information is used for provenance determination of the analyzed sample.
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Anonymous, "A New Method for Provenance Determination of Metals by Analyzing Samples using Process of Electromigration", Technical Disclosure Commons, (December 21, 2020)