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>insert hypothetical hack proof perfect RFID cryptocard into a cavity of the coin and solder it up except for a small hole for RF to pass thru? Then, hypotheti
by Osmium 13y ago
>insert hypothetical hack proof perfect RFID cryptocard into a cavity of the coin and solder it up except for a small hole for RF to pass thru?
Then, hypothetically, why not have the "coin" be the cryptocard in the first place? and forgo this whole lump of metal thing. Probably because it's not robust in the long term. What happens when the RFID cryptocard, eventually, fails?
I like the moon dust idea though :)
- thaumasiotes 13y agoHypothetically, it's because the authorizing statute specifies that the coin must be platinum (or put another way, the statute only authorizes the minting of "platinum coins").
- VLM 13y agoI haven't done much hi-temp thermocouple work... anyone know how easy it is to solder to platinum with "real" or lead-free solder? Electroplate a round cryptocard PCB and solder it together? I know solder sticks very well to gold after some unfortunate accidents (keep the solder away from the plated contacts when assembling, etc) so this would work for a "gold" coin.
- Osmium 13y agoYou can solder with platinum directly, in a manner of speaking (it won't be 100% platinum, and it also requires much higher temperatures than ordinary solder).