Patent ID: 11879883
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method of verifying a precious metal source, the steps of the method comprising:
imprinting a shape of formed precious metal with a quantity of trace elements defining a signature, the signature being altered by melting of the shape;
wherein the imprinting includes melting of a precious metal and mixing the quantity of trace elements into the precious metal after melting wherein the quantity of trace elements is evenly distributed throughout the precious metal;
wherein the mixing of the quantity of trace elements includes melting a first portion of the quantity of trace elements simultaneously with the precious metal to form a first mixture;
cooling the first mixture such that a second portion of the quantity of trace elements can be mixed with the first mixture without destroying the second portion of the quantity of trace elements, mixing of the second portion of the quantity of trace elements with the first mixture to form a second mixture, the second portion of the quantity of trace elements comprising elements lighter than iron; and
forming the shape from the second mixture.