Here’s a cool way to bring a physical presence to your Bitcoins: a custom CNC milled QR code Bitcoin address! [ch00f], one of our occasional writers here at Hack a Day, has just finished this ...

By integrating technologies like QR codes, NFC, Bluetooth Beacon, and 3D printing into custom keychains, businesses can create interactive experiences for their customers, drive traffic to their ...

But when I got there, I found a mangled keychain with the QR code peeled open and the key gone. As for the others, the QR code could have gotten wrecked or the keys kicked into a bush or down a drain.

In conclusion, technology and custom keychains are a perfect combination for businesses looking to promote their brand in a cost-effective and innovative way. By integrating technologies like QR codes ...

Here’s a cool way to bring a physical presence to your Bitcoins: a custom CNC milled QR code Bitcoin address! [ch00f], one of our occasional writers here at Hack a Day, has just finished this… ...