Monthly Archives: May 2013

Casascius Coin production featured in The Rise and Rise of Bitcoin

I’m at the Bitcoin Foundation conference, where the trailer for The Rise and Rise of Bitcoin was introduced. It can be found here: A brief shot of my laser machine cutting private keys is visible in the film. I’m seeing a couple of questions frequently asked. What kind of laser paper cutter do you […]

Suggestions for choosing the passphrase for your two-factor item

I wanted to post briefly to share my suggestions for two-factor Casascius items. Two-factor Casascius Coins are physical bitcoins that are protected by a passphrase that I, as the producer of the coin, do not know. On a two-factor item, although I can see the private key, it is encrypted and not usable for coin […]