Bitcoin Forum
August 08, 2025, 02:12:58 PM *
News: Latest Bitcoin Core release: 29.0 [Torrent]
 
  Home Help Search Login Register More  
  Show Posts
Pages: [1]
1  Bitcoin / Development & Technical Discussion / Re: Launch of BitPay, worlds first smartphone-ewallet for bitcoins on: July 11, 2011, 08:53:45 AM
Please excuse me for being an ignorant newb here... but what is stopping people from just making a wallet file encoded in a QR code?

private keys are 256bits long.  default wallet generates 100 pool keys plus whatever keys you've manually created - so say, 110 keys.  That's 3250bytes.

Maximum data storage of a QR code is 2953 bytes1

Will
There was a thread about a single address + private key encoded qr code (http://forum.bitcoin.org/index.php?topic=3716.20), so you can scan and own that bitcoin address (+private key!) . First thing you'll do is to transfer the coins, because the guy who generated the private key could could transfer the coins, if you wants to...

But this won't work for BitPay, because it is not a fully bitcoin node, so some web service would have to offer a "private key spend coins service" it could use.

working with bitcoin uri, just containing the address and a web service like instawallet.org is simple, easy and fast. I like it for smart phones.

I am working on a BitPay clone, that would be easily portable to android and Iphone (well, don't know what the apple market will say Cheesy ) and some other, if I'll find alternatives for the ZXing QR code scanner library...
2  Bitcoin / Project Development / Re: [ANN] API for Instawallet on: July 08, 2011, 06:21:32 AM
Hooray for the API! I'll think now I have to code something...  Grin
3  Bitcoin / Pools / Re: [330 GH/s] "Eligius" pool: almost feeless PPS, hoppers welcome, no registration on: July 06, 2011, 07:07:13 PM
I'm still waiting my unpaid EU balance. The US one was received promptly when Luke-Jr said it would, but nothing yet for EU.
it took quite a while, but mine are all through now.
I received mine EU balance yesterday. Just wait for the next block...
4  Other / Beginners & Help / Re: Is it worth it on my hard ware? on: July 05, 2011, 08:57:55 PM
Depends... do you pay the electric bill yourself?  If so, then sadly the answer is probably that you are paying more to run the PCs than you are generating in bitcoin.  BUT, if you were going to run those PCs anyways, then really you are making out better by producing _some_ bitcoin in the process.  OR, if someone else is footing the bill, then mine away my friend - PURE PROFIT! Smiley
[...]
Jon

Hi,

do not forget, that someone will have to pay for the electricity, and a minig GPU will consume more power than an idle one...
5  Other / Beginners & Help / Re: [Free] Google+ Invites on: July 05, 2011, 08:51:06 PM
Well, guess I send an PM Smiley
6  Other / Beginners & Help / Re: [Free] Google+ Invites on: July 05, 2011, 08:40:33 PM
Well, how many invites can you use in total?
7  Other / Beginners & Help / Re: PS3 Bitcoin Cellminer - Guide and Files Included on: July 05, 2011, 08:31:22 PM
Minimal power consumption? Are you sure? Did you try an power consumption meter?
8  Other / Beginners & Help / Re: single slot Radeon HD 6850 on: June 21, 2011, 09:03:16 PM
Oh, no,

I just got a HD 5570, because I had only a single slot left. Ok, its cheaper than the 6850, also really slower  Undecided

Maybe we should add a column to the wiki, for one slots?

Just be careful with the cooling, Rainyn, and welcome too.
Pages: [1]
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!