Front (left) and back of a physical Casascius silver Bitcoin coin (1 BTC).

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Front (left) and back of a physical Casascius silver Bitcoin coin. Each of the collectible coins has its own Bitcoin address and a redeemable private key embedded inside underneath the hologram on the back.

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Size: 4000px × 2592px
Location: Zurich
Photo credit: © EThamPhoto / Alamy / Afripics
License: Licensed
Model Released: No

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