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Physical coins are used to enable people to hand quantities of a cryptographic currency to each other. They generally contain an outside label indicating their value and a tamper-evident seal containing inside a claim code or key.

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Where can I safely sell a Casascius version 1 physical bitcoin (with hologram error) for cash?

I have one of the Casascius coins (this one, to be exact) that contains an error: the small lettering on the hologram reads "Casacius", without the second 's'. I'm a inexperienced when it comes to all …
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