Casascius Bitcoins are physical coins you can hold – and each one is worth real digital bitcoins.
Perhaps you’ve heard about Bitcoin, the open-source peer-to-peer “cryptocurrency” that you can send over the Internet without a bank or a middleman. Once upon a time, Bitcoins were completely virtual and you couldn’t hold or touch them.
Not anymore. Each Casascius Bitcoin is a collectible coin backed by real Bitcoins embedded inside. They come in two denominations: 1 bitcoin, and 25 bitcoins. Each piece has its own Bitcoin address and a redeemable “private key” on the inside, underneath the hologram.
These will probably end up being worth more as collector’s items, but it’s an interesting glimpse at what could end up being the “future of money”. Holograms and crypto. Gold pressed latinum.
Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !
I have no real interest in bit coins but want to comment on your version of captcha. I grew up with electronics in the house, including resistors, but found reading them difficult since I’m colorblind and have a skewed color sense (or so I hear). So I’m curious whether I’ll be seen as human or not.
@johnb – you commented just fine, we actually worked with colorblind people and they don’t have any issues. the only people who complain are people who aren’t colorblind and assume we did not think about ways to do the captcha with color blind folks in mind. go figure 🙂
in fact, so far everyone who says they’re colorblind has been able to comment here.
Isn’t this rather pointless? He only accepts bitcoins as payment and his prices for the physical bitcoins are more than an actual bitcoin. It makes sense as I am sure the physical representation requires real money – that’s irony – but who would pay $1.25 for a $1 bill? That’s one smoother operator there.