Harnessing Subatomic Effects for Product Authentication
Anon writes: "Israeli company Microtag claims to have come up with a way to avoid counterfits, and they mean everything from CDs to clothes to cash to vegetable seeds. Mix several micrograms of their 'magic powder' - which is engineered with a unique identification using the matter's spin - into your product - and later you can verify its authenticity with a relatively low-cost reader. Although their presumption is that no-one else will be able to create this 'magic powder' (which is probably only a matter of time and enough money), an Israeli article claims that Motorola and even the Bank of England are interested in the technology."
o tagging of removable media, so cases of copyright infringment can be linked to the purchaser of the blank CDR
o tagging of currency, eliminating that pesky tax evasion, drug trade, and prostitution problems often associated with anonymity
Yes, this seems like wonderful technology. Really.
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The only thing that's new about this, as far as I can tell, is the low cost deployment. Consider what they do say about it:
- The technology uses materials with "very unique physical and chemical properties" at the "sub-molecular level."
- The reader is an RF "transceiver" which can detect the material in a manner analogous to "magnetic resonance imaging."
Sounds to me like they've build themselves a Nuclear Magnetic Resonance (NMR) spectrometer that doesn't have to be very powerful due to bulk effects -- fire some RF at it, stop, then listen.
There's nothing keeping anyone from using a more powerful NMR spectrometer to isolate the material and reproduce it. So maybe they'd just lobby to have NMR spectroscopy outlawed as a "counterfeiting tool." Security through obscurity reigns...