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2721  Economy / Securities / Re: Diablo Mining Company on: December 10, 2012, 05:16:17 AM
They will be issued as PGP signed serial numbered documents using a single use PGP key that will be locked in a safe afterwards, thus preventing any possibility of forgeries.

What is a single-use PGP key?
2722  Economy / Service Announcements / Re: [ANN] Safe JavaScript Bitcoin address/private key [BOUNTY 0.1BTC] on: December 10, 2012, 03:32:25 AM
I've been thinking about just giving people bitcoins but I've been held back by the thought that I'm wasting my money. This way, if the bill doesn't get spent by dec 31st 2013, I'll sweep all that's left back to my wallet print new ones and hand them out again. Great, great tip! Bitcoin Faucet offline, IRL Smiley

If you don't value that 0.1 BTC and are willing to give it away, then why should the person who receives it believe this piece of paper from a complete stranger would be something of any value either?

I recently experimented with a couple different approaches for this.

One that I tried just once failed but I plan to try it again with better results.  What I wanted to do was to let the person "do work" to earn the funds.   About the only "work" I could think of was bitZino blackjack or roulette.  After the person plays a few rounds, they get the payout (I'll withdraw it to their paper bitcoin).  

My first attempt at this failed because I didn't have good enough internet connectivity when trying to demonstrate it.   (My next try I might use instead for the form of "work" with someone at random as there is no need for that person to know how to play blackjack and KingCoin's game is more visually entertaining.)
2723  Bitcoin / Mining / Re: Three days out, and network hashrate unaffected? on: December 10, 2012, 03:12:15 AM
If I was serious about mining now I would buy all FPGA's I could get my hands on, as they are priced favourable now MH/$ vise. That would still be a gamble that asic's will not take over (either because of delays or a smaller market than people think).

You probably aren't following this thread then:

If the foundry keeps up 4 layers a week from now on, it means ASICMINEr should receive the chips just before Christmas, so we could theoretically (hopefully) have something online before the end of the year....hashing the first ASIC mined block ever

then following that:

(~2-3 weeks)
First 6TH/s online
(~2-3 weeks)
Second 6TH/s online
(~0-4 weeks)
50TH/s of chips out
(~2-3 weeks, ~2-5 weeks if location changes)
Part or all of the 50TH/s online
2724  Other / Beginners & Help / Re: Transaction change vanished on: December 10, 2012, 02:06:32 AM
Ran "bitcoin-qt -salvagewallet -rescan", but I get "Cannot initialize keypool" error message. Tried several times. Found no helpful information by googling it...

I doubt that those two are meant to be used simultaneously.   Try just -salvagewallet

2725  Other / Beginners & Help / Re: UK options for BTC to GBP on: December 10, 2012, 01:50:37 AM
StephenGornick - what is the unavailable method you alluded to?

The one I was referring to as being "unavailable" is the cash-out service that mjb monetary metals was providing:

Another method is currently unavailable but it may be re-opened at some point:

********** BUY / SELL BITCOINS UK *********

They now are providing cash out service, but only through OKPay.
2726  Other / Beginners & Help / Re: Liberty Reserve to Western Union exchange on: December 10, 2012, 01:44:53 AM
Guys you just don't send your exchange order to anyone who have advertised online. Be careful and use reliable and recommended exchange services like http://Http://

Guys you just don't send your exchange order to anyone who have advertised online. Be careful and use reliable and recommended exchange services like http://Http://

freddy8 your recommendation in your previous post is no longer in business.  This swapmybuck one had its domain registered just a couple weeks ago.

When exchanging non-reversible payments like Liberty Reserve or other digital currencies like Perfect Money, one needs to have good reason to trust the counterparty. 

Sometimes buyer or seller can be found through the #Bitcoin-otc marketplace, and the -otc Web of Trust (WoT) is useful to see the counterparty's trust history:
2727  Bitcoin / Development & Technical Discussion / Re: BIP 38 Discussion Thread - Passphrase-Protected Private Key Format on: December 10, 2012, 12:11:06 AM
* Encrypted keys are fifty-eight Base58Check-encoded characters starting with "6P"

Would you mind updating this wiki article to reflect this?
2728  Other / Beginners & Help / Re: Prepaid Visa to Bitcoin? on: December 09, 2012, 07:20:02 PM
I recently received a 500$ prepaid visa giftcard from a friend at work

Where do you find friends like that?   Grin

my visa is only good in the U.S. Is it even possible to buy bitcoins with a Visa Prepaid giftcard?

Can the card be used at an ATM?

Cash works for buying bitcoins.

Do you have a Chase location nearby?   Bitcoins can be purchased at BitMe with cash deposited at Chase.   There isn't always liquidity so buying in the $500 range there might take a bit for sellers to take you up on your buy order.  (or you can always buy at the current price for the sell orders, but that is about 5% over the spot price).

You can also buy bitcoins using cash through BitInstant.  

There is a service that accepts credit and debit cards, I don't know if they have restrictions against prepaid cards.  At the moment the site reads: "Availability: Out Of Stock" though.

Or you might find a local trade (paying cash):

Additionally, there are frequently individual traders on #bitcoin-otc who are willing to accept a prepaid card and after spending the funds successfully will send you the coins for the agreed-upon purchase price.  Using the history from the Web of Trust (WoT) helps to ensure a safer transaction -- or perhaps asking the seller to agree to using an escrow is another way to lessen the chance that you would be cheated.


Or if you are considering a bank transfer, there all kinds of options are available:
2729  Economy / Currency exchange / Re: [*In Stock*]btcQuick Selling Coins for CC/Debit [35 Coins In-stock 12/04] on: December 09, 2012, 07:13:29 PM
We just added 30 Bitcoin Key's to our stock. Get them while they last!

The product page for each shows out of stock at the present time.  Is the site always accurate, or any ETA?
2730  Other / Beginners & Help / Re: : frozen btc when trying to withdraw on: December 09, 2012, 05:27:34 AM
I tried to withdraw my BTC but they got frozen by for no reason (they are normally frozen when you initiate a sell transaction which I didn't, I just tried to withdraw).

FYI, another related thread:
2731  Economy / Services / Re: Coinbase - Solid or not? on: December 09, 2012, 05:18:21 AM
I had an easy setup with two-factor authentication and while the message when I have sold Bitcoins has told me to expect the ACH to go through in five business days, it actually went through in two.

I had cashed out through CoinBase as well and the funds for the 4:52 pm PST sale were in my bank account about 36 hours later.
2732  Economy / Service Announcements / Re: bitfloor needs your help! on: December 09, 2012, 05:15:15 AM
I received a little over 1.7% of my held balance back.

If the exchange rate goes up much more that would make it harder on BitFloor.  It is like taking out a  BTC loan and then having to repay from dollar-based income.
2733  Economy / Services / Re: [CLOSED] CellCoin on: December 09, 2012, 04:57:46 AM
We at Tangible Cryptography LLC have decided to close CellCoin.

That's unfortunate.

BitcoinWireless has not yet launched either.  That least BTCBuy as the sole remaining source.  Each month I refill my mobile phone service (currently Virgin Wireless prepaid, previously T-Mobile prepaid) and use either CellCoin or BTCBuy and have had great experiences with both.

2734  Bitcoin / Bitcoin Discussion / Re: Why are there a large number of nodes near Wichita, Kansas? on: December 09, 2012, 04:42:47 AM
Conspiracy theories, anyone?

Geographic center of "U.S" where no location with greater specificity was available?
2735  Other / Beginners & Help / Re: where to sells coins for gbp on: December 09, 2012, 01:07:34 AM
i have nearly 200 coins that i need to convert into gbp

where is the best place to do so quickly and with the least charges  

For that size of traction the best cash-out method might be to simply trade at MTGox's btc/GBP market and then do an international bank wire.  

You could break it up into multiple trades at various exchanges and perhaps come out a little better.  They are often individuals buying for cash through LocalBItcoins.

Or the bitcoin-otc marketplace also might help you find buyers.  

Here is a thread from someone looking to buy a smaller quantity.
2736  Local / Other languages/locations / Re: Czech bitcoins-how to cash them? on: December 08, 2012, 03:09:02 PM
If you live in Czech Republic- how do you cash bitcoins,are there any companies which facilitate this?  Smiley ta for replies etc.....

You might ask, maybe they might be looking for a local source or perhaps might know of a local trade option for you.

There might already be someone listing an offer near you. There are many listings in which you will find a buyer paying with CZK.

2737  Other / Beginners & Help / Re: Blockchain: List of nodes is connected to on: December 07, 2012, 11:41:11 PM
as it states the list of nodes that's bitcoind is connected too. You can't see all globally running bitcoin clients

I don't even know that needs to be able to connect to it to list it.  If node A connects to node B, node B would share the IP for Node A, but node A doesn't necessary need to allow an incoming connection.  And thus if's node learned of node A through node A it might list it even though it cannot connect to it.

I don't know if they are doing that, and doing so would make it trivially easy to pollute's list of nodes.
2738  Other / Beginners & Help / Re: buying bitcoins in uk also cashu ukash problem on: December 07, 2012, 10:35:36 PM
having trouble buying bitcoins in the uk would like to buy a few hundred pounds a week but cant find a reliable source for cash payments

You can't find local cash traders?


Bitcoin Nordic accepts cash-by-mail (GBPs) for the purchase of bitcoins.  The are in Denmark:

You might also want to place a buy order on the #bitcoin-otc marketplace:
 -  - The #bitcoin-otc marketplace Web of Trust (WoT)

There was another thread recently in which an individual offered to do a trade with a bank transfer:

That was learned from:
2739  Economy / Gambling / Re: shooting its self in the foot with listing fees on: December 07, 2012, 10:30:26 PM
A listing fee disincentivizes people from contributing new submissions which in turn hampers the diversity of options available to people who want to place bets which in turn reduces the appeal of

The listing fee is 0.1 BTC.  That's worth about $1.30 currently.  If the submission earns enough commission the submitter can actually profit.  The break-even is 2.0 BTC in losing bets.

Essentially if a bet statement doesn't yield at least 2.0 BTC in losing bets it probably wasn't well written or of sufficient interest to a wide-enough audience.  i.e., in my opinion, the site is better off without cruft.  Fewer submissions that are of a good quality are better than many submissions of little interest.

Also, this hurdle might help cause bet statement authors to think it through a bit more.  For instance, if a bet is so obvious, few will bet what ends up being the losing side.   So while the bet statement may end up with a ton of bets placed, if there are hardly any losing bets there is hardly any gain for those who bet the correct way.   So with some  "skin" in the game, the bet statement author might develop a bet statement to where the outcome is less likely to be easily predicted.

Should you have a bet statement you'ld like to submit but are holding back because of the 0.1 BTC submission fee, I created a thread for requests / suggestions:
2740  Economy / Web Wallets / Re: - Bitcoin Block explorer & Currency Statistics on: December 07, 2012, 06:39:26 PM
I'm trying to use Blockchain for Android for the first time on a Nexus 7 and it crashes on launch.

I can see the stack trace on the Report menu, but don't know how to copy that and paste it here so I'll manually type what it looks like the problem is.

Caused by:$InstantiationException: Unable to instantiate fragment make sure class name exists, is public, and has an empty constructor that is public
Caused by: java.lang.ClassNotFoundException: Didn't find class "" on path: /data/app/piuk.blockchain-1.apk

This is on Android 4.2,

[Update: Thanks to World's tip on how to get a screen shot:

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