Perth Mint taps Security Matters to protect gold

Discussion in 'General Precious Metals Discussion' started by SilverDJ, Mar 22, 2019.

  1. SilverDJ

    SilverDJ Well-Known Member

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    How the hell does this work?
    "SMX’s technology enables any solid, liquid or gas to be invisibly and irrevocably ‘marked’ using a chemical-based barcode"



    https://stockhead.com.au/tech/flurr...xcited-to-lift-security-matters-target-price/

     
    SilverDJ, Mar 22, 2019
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  2. Ian Gillman

    Ian Gillman Active Member

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    They could manipulate the various ratios of isotopes to produce a unique combination. They would be chemically the same but able to be read using a mass spectrometer.
     
    Ian Gillman, Mar 22, 2019
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  3. SilverDJ

    SilverDJ Well-Known Member

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    On 99.99% gold that can still be tracked when melted down?
    Isotopes are at most a half life in the order of days
    https://en.wikipedia.org/wiki/Isotopes_of_gold
     
    SilverDJ, Mar 23, 2019
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  4. Ian Gillman

    Ian Gillman Active Member

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    They could always tag the other 0.01% of stuff that is not gold.
     
    Ian Gillman, Mar 23, 2019
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  5. SilverDJ

    SilverDJ Well-Known Member

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    How does it survive a meltdown?
     
    SilverDJ, Mar 23, 2019
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  6. Ian Gillman

    Ian Gillman Active Member

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    The same way it survived the initial meltdown to make it. Don't forget that you are talking about approximately 6x10^19 atoms of junk for every 200 grams of gold. Stick a couple of other metals with isotopes in there as the junk and you have an isotope ratio you can use to identify the gold. All they would be doing is making the 0.01% that is normally junk into something useful. They are not making it impossible to get rid of the tracer, just very expensive to make it not worthwhile.
     
    Ian Gillman, Mar 23, 2019
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