Bitcointalk Mobile Browser presented by IRLBTC™

Quote from: benjamindees on June 28, 2011, 11:11:50 PM

June 28, 2011, 11:19:56 PM

#21

So, lemme get this straight. Your customers have to trust you with their private key?

Or just the bitcoin address, if all they want is the reference card.

enmaku

Hero Member

Offline

Activity: 742
Merit: 500

Quote from: SgtSpike on June 28, 2011, 11:02:09 PM

June 28, 2011, 11:22:20 PM

#22

I have to say the metal engraving is a nice touch, but wouldn't a laminated card (like a credit card) work just as well and be a lot cheaper?

I like these for the same reason we began our civilization with gold and silver currencies: durability. Metal engraved cards will work exactly the same as laminated cards, but will likely last much longer.

Other things I'd like to see along these lines:

Punch the QR code all the way through thus creating metal bitcoin punchcards, for maximum durability and a retro look/feel
QR codes engraved onto round metal blanks - actual bitCOINS
Bitcoin QR code jewelry?
Forget the card/bill/coin form factor (it's so 20th century), bleed the QR codes all the way to the edge and make tiny rectangular metal currency - I'm imagining gold-pressed latinum for some reason
For the incredibly wealthy, take my QR coin idea and do it with actual gold or silver - combining a physical AND digital commodity

The possibilities are endless!

nazgulnarsil

Sr. Member

Offline

Activity: 672
Merit: 258

https://cryptassist.io

CRYPTASSIST
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
KNOWLEDGE IS POWER

June 28, 2011, 11:40:06 PM

#23

Do want.

don't trust anyone with a private code, but a reference card would be neat. Any ideas on price (ballpark, under $20?)

THE ONE STOP SOLUTION FOR THE CRYPTO WORLD
▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
/ Facebook / Twitter / Reddit / Medium / Youtube /

▶ JOIN OUR ICO
WIN A TESLA ROADSTER!

██
██
██
██
██
██
██
██
██
██
██
██

█ ▌|━━ TELEGRAM ━━|▐ █
(( ANN Thread )) (( White Paper ))

spruce

Full Member

Offline

Activity: 140
Merit: 100

June 28, 2011, 11:43:55 PM

#24

For a savings wallet QR code you could also have it tattooed on.

Since you have to really spend it all once it's been opened, thus rendering the tat non-functional, that would be a good incentive not to spend it!

LightRider

Legendary

Offline

Activity: 1500
Merit: 1022

I advocate the Zeitgeist Movement & Venus Project.

June 29, 2011, 12:01:06 AM

#25

Really interesting. An upgrade from the bitbill concept in my opinion.

Bitcoin combines money, the wrongest thing in the world, with software, the easiest thing in the world to get wrong.
Visit www.thevenusproject.com and www.theZeitgeistMovement.com.

SgtSpike

Legendary

Offline

Activity: 1400
Merit: 1005

June 29, 2011, 12:23:14 AM

#26

Why would you have to spend it all once it's been opened?

Just tattoo your bitcoin address, then anyone can scan your skin to send money to you!

FuzzyCoins

Newbie

Offline

Activity: 29
Merit: 0

June 29, 2011, 12:27:51 AM

#27

If this is a cute way of publishing your public address as a way to receive BTC then it is cute, maybe even classy.

If it is supposed to be a way to send money, then it is useless (or at least insecure). If the private key is printed on it (as a set of numbers or QR code or whatever) then all I have to do to steal the BTC is look at it, maybe even from a distance. I can use a camera with a telephoto lens and take a picture of you holding your card. As soon as I do this I can spend your BTC.

If you give me one of these as payments for something, I have to run the transaction then and there to make sure the BTC hasn't already been spent. It is not a way to perform a BTC transaction offline. It is not a way to securely hold BTC.

I suppose you can take the private card and keep it out of sight (literally), but why put it on a wallet size card if you aren't going to carry it around?

spruce

Full Member

Offline

Activity: 140
Merit: 100

June 29, 2011, 12:38:34 AM

#28

Why would you have to spend it all once it's been opened?

Just tattoo your bitcoin address, then anyone can scan your skin to send money to you!

I would do it for safety. I guess it depends what software with what security is available at the time it happens. I like the idea of "one-time" savings wallets that you can send to as often as you want but then only expose the private key once. If you're happy with your crypto-nerd powers then it's probably not necessary, but being a crypto-weeny myself I'll settle for something like Casascius's paper wallet key-pairs, rather than having to deal with the change into a new address and so forth.

I don't mind dealing with a small day-to-day spending wallet client on my regular computer, but a savings wallet and arcane (for me) crypto precautions? Nope, sorry.

phorensic

Hero Member

Offline

Activity: 630
Merit: 500

June 29, 2011, 01:12:28 AM

#29

Noitev, how much acid were you on when you made your signature?

Ryland R. Taylor-Almanza

Legendary

Offline

Activity: 882
Merit: 1001

   ▄███
   ▄████▀
   ▄████▀
   ▄████▀ ▄██▄
   ▄████▀ ▀████▄
   ▄████▀ ▀████▄
   ▄████▀ ▀████▄
   ▄████▀ ▀████▄
▄████▀ ▄████▄ ▄████▄ ▀████▄
█████   ██████ ██████   █████
▀████▄ ▀████▀ ▀████▀ ▄████▀
   ▀████▄ ▄████▀
   ▀████▄ ▄████▀
   ▀████▄ ▄████▀
   ▀████▄ ▄████▀
   ▀████▄▄████▀
   ▀██████▀
   ▀▀▀▀

June 29, 2011, 01:19:39 AM

#30

I can't wait for you to start selling these!

.BITSLER.

▀▀▀▀▀▀▀▀▀▀▀▀▀███████
THE FASTEST
BTC DICE GAMES

▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄
▄▄▄▄▀▀▀▀ ▄▄█▄▄ ▀▀▄
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▄
█ ▀▄▄ ▀█▀▀ ▄ ▀████   ▀▀▄
█ █▄ ▀▄   ▀████    ▀▀ ▄██▄ ▀▀▄
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
█ ▀▀    ▀▄▄ ▀████ ▄▄▄▀▀▀ █
█ ▄ ▀▄ ▄▄▄▀▀▀   ▄▄ █
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
█ ▄▄   ███   ▀██ █    ▀▀ █
█ ███ ▀██    █ ▄▄ █
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
▀▄ █ ▀▀ █
▀▀▄   ███▄ █   ▄▄ █
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
▀▀▄   █   ▀▀▄▄▄▀▀▀
▄▄▄▄▄▄▄▄▄▄▄█▄▄▀▀▀▀

▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀███████
0 CONFIRMATION
INSTANT DEPOSIT

▄▄▄██████▄▄▄
▄▄████████████████▄▄
▄██████▀▀▀▀▀▀▀▀▀▀██████▄
▄    ▄█████▀    ▀█████▄
██▄▄ █████▀ ▄ ▀█████
████████ ▄██ █████
████████▄    ███▀    ████▄
█████████▀▀    ▄███▀ █████
   █▀▀▀ █████    █████
   ▄▄▄    ████ █████
   █████ ▀▀    ████▀
█████    █████
   █████▄    ▄█████
▀█████▄    ▄█████▀
▀██████▄▄▄▄▄▄▄▄▄▄██████▀
▀▀████████████████▀▀
▀▀▀██████▀▀▀

▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀███████
AVAILABLE 24/7
FRIENDLY SUPPORT

▄▄▄███████▄▄▄
   ▄█▀▀▀ ▄▄▄▄▄▄▄ ▀▀▀█▄
   █▀▀ ▄█████████████▄ ▀▀█
   █▀▀ ███████████████████ ▀▀█
█▀ ███████████████████████ ▀█
   █▀ ███████████████▀▀ ███████ ▀█
▄█▀ ██████████████▀ ▀█████ ▀█▄
███ ███████████▀▀ ▀▀██ ███
███ ███████▀▀    ███
███ ▀▀▀▀ ███
▀██▄    ▄██▀
▀█▄ ▀▀
█▄    █▄▄▄▄▄▄▄▄▄█
   █▄ ▀█████████▀
▀█▄ ▀▀▀▀▀▀▀
▀▀█▄▄ ▄▄▄
▀▀█████

[

play & join our
BIG COMMUNITY

]

Kermee

Full Member

Offline

Activity: 154
Merit: 100

June 29, 2011, 01:26:11 AM

#31

Would purchase at least two. What a wonderful way of 're-investing' into BTC's future with your earnings.

Cheers,
Kermee

jonathan

Member

Offline

Activity: 84
Merit: 14

June 29, 2011, 01:41:46 AM

#32

aww, sweet!

SgtSpike

Legendary

Offline

Activity: 1400
Merit: 1005

June 29, 2011, 02:51:28 AM

#33

Why would you have to spend it all once it's been opened?

Just tattoo your bitcoin address, then anyone can scan your skin to send money to you!

I still don't get it.

You'd never have to expose any private keys (beyond having them in your wallet). Just pick an address that your wallet generates, then make a QR code out of it and use that for a tattoo.

Noitev (OP)

Hero Member

Offline

Activity: 812
Merit: 505

The Last NXT Founder

Quote from: phorensic on June 29, 2011, 01:12:28 AM

June 29, 2011, 03:30:20 AM

#34

Noitev, how much acid were you on when you made your signature?

obviously not enough.

Don hertzfeldt is amazing

Noitev (OP)

Hero Member

Offline

Activity: 812
Merit: 505

The Last NXT Founder

June 29, 2011, 04:09:18 AM

#35

Why would you have to spend it all once it's been opened?

Just tattoo your bitcoin address, then anyone can scan your skin to send money to you!

I think the biggest problem, especially after the recent theft of 25k btc, is that people dont trust their computers, the pairs help because they wont be linked to a computer and so any funds on them are safe until redeemed, I suppose you need to trust I won't hijack it, but I've been in btc for a while and really have no interest in theft and want to see btc take off. I got scammed out of 120 btc when they cost less and really dont want to see that happen. all of the keypairs will be made offline and deleted.

SgtSpike

Legendary

Offline

Activity: 1400
Merit: 1005

Quote from: Noitev on June 29, 2011, 04:09:18 AM

June 29, 2011, 04:20:41 AM

#36

Why would you have to spend it all once it's been opened?

Just tattoo your bitcoin address, then anyone can scan your skin to send money to you!

True enough. I suppose it's easier to trust a single person than trust that your computer will be safe from hax forever.

I do like the metal engraving idea, I just think it might be too expensive for most people. But I'm anxious to see how they turn out.

Noitev (OP)

Hero Member

Offline

Activity: 812
Merit: 505

The Last NXT Founder

Quote from: SgtSpike on June 29, 2011, 04:20:41 AM

June 29, 2011, 04:40:19 AM

#37

Quote from: Noitev on June 29, 2011, 04:09:18 AM

Why would you have to spend it all once it's been opened?

Just tattoo your bitcoin address, then anyone can scan your skin to send money to you!

It really shouldn't cost too much

phillipsjk

Legendary

Offline

Activity: 1008
Merit: 1001

Let the chips fall where they may.

June 29, 2011, 05:28:39 AM

#38

Would the wax or plastic over the private key be tamper-evident? What happens when I shine infra-red light on it?

I think the engraving would be too durable and clear to securely store the private key.

James' OpenPGP public key fingerprint: EB14 9E5B F80C 1F2D 3EBE 0A2F B3DE 81FF 7B9D 5160

netrin

Sr. Member

Offline

Activity: 322
Merit: 251

FirstBits: 168Bc

June 29, 2011, 05:44:11 AM

#39

It would be nice if our wallets were separated individually into the addresses and the private keys in digital form. The OP is engraving the private key (minimal wallet), hidden under tamper-evident gunk, with a lovely address line in plaintext and luxurious QR.

(I pondered similar ideas for Father's Day, but...)

Why?

Greenlandic tupilak. Hand carved, traditional cursed bone figures. Sorry, polar bear, walrus and human remains not available for export.

Noitev (OP)

Hero Member

Offline

Activity: 812
Merit: 505

The Last NXT Founder