Bitcoin Forum

Let's say I tattoo a public key and private key to the same wallet on my body. Will I technically have all of my finances at hand, assuming I use the same address?

Yep.

I would leave off and memorize at least a few digits. When the cops capture you they are going to photograph your naked body.

You might want to keep those tattoos somewhere only you would get to see them.

I'd be too paranoid to do that. I'd have to become a never-nude if I ever did. Those tattoos would never see the light of day.

What do you think about Achilles'_heels - http://en.wikipedia.org/wiki/Achilles%27_heel?

Haha. :-D

Actually, carrying around your private and public keys might not be a bad way to solve the "physical bitcoin" problem. You'd still have to get onto the network to buy something, but you wouldn't need any kind of client yourself. Providing a client would be the vendor's responsibility, which is a lot more reasonable than expecting everyone to buy some sort of thin client or smartphone to buy things.

Oh! And we could tattoo our public keys on our foreheads and our private keys on our right hands and use those to buy and sell things! (Sorry, "mark of the beast" reference. Had to be made.)

Edit: Any idea how credit card companies and banks prevent businesses from storing their customers' card numbers and security codes and using them later to tack on additional charges? That would be highly relevant to us if we're to start giving out our private keys everywhere.

I wouldn't start that trend... you'd have people waking up (or not waking up at all) dazed in the streets after being drugged at a bar for their bitcoin tattoo details!