Sunday, September 11, 2011
Casascius Physical Bitcoins
Bitcoin Talk user casascius has created a unique way to physically store and trade Bitcoins: brass tokens containing a mini private key for a Bitcoin wallet containing ฿1. Each token has a tamper-showing hologram that shows an owner or potential owner if the private key has (possibly) been accessed and consumed, and denotes the first 8 characters of the wallet's public address, which is enough to identify it on Block Explorer to confirm the balance. For a size reference, Casascius tokens are 1.125inch (28.6mm) in diameter, which is slightly larger than a US quarter, but still smaller than a US half-dollar coin. You can order a Casascius token directly from his website.