These items works and has been working more than year with almost no issues. However small fans sounds suspicious, so it should be replaced in 3 or 6 months maximum. I don't think I can give a long warranty because of fans.

Looks like bfl trade-in program is closed, so bfl broke it's own promises once again :-( Yes, I've searched price of the fpga chip inside but it gives prices from 40$ to 4000$ - I don't think it is because everybody want to buy this.

I'm selling two BFL Single FPGA for 6 BTC (3 BTC each), shipping to US from California (sf bay).
1660 mh/s averaged on heat-resistant firmware.

Оки, супер, спасибо.

bitfury, а вот те платы, которые для NA продавались - они уже физически существуют хотя бы в единичных экземплярах? А то я читаю этот мегатред и получается впечатление что все еще на этапе "а как теперь этот чип подключить, чтоб нормально работал". Или это для, так сказать, версии обвязки номер 2 на поздний срок? Извиняюсь, если это где-то уже написано на каком-то официальном сайте - слишком много разных источников информации.

I've ordered one small kit. I really hope it will be delivered at the next month, not in August 2014  :-)

Any address with positive balance have unspent outputs (transactions). You have to obtain these transactions in raw form from bitcoin qt and paste it to the app. Then it would generate spending transaction (and verify it by itself) and after that you have to copy it and push it to bitcoin network by yourself using bitcoin qt or any other bitcoin service which allow to do that. It's quite easy. Most complicated thing is to obtain that unspent raw transaction.

Now it is hardcoded to 0.0005 btc, next version will allow to set this fee.

The only way to protect from keyloggers and other spyware is to use offline clients. Passwords only helps when your laptop is stolen.

Seems other people also notice something like this:

#   Block found at   Duration   Total shares   Your shares   Your BTC reward   Block #   Block value   Validity
18477   2013-06-08 21:06:52   0:16:48   3044439   771   0.00620788   240464   25.02221000    86 confirmations left
18476   2013-06-08 20:50:04   0:32:02   5830760   1424   0.00558570   240461   25.29293136    83 confirmations left
18475   2013-06-08 20:18:02   0:11:15   2061335   497   0.00624646   240457   25.21590001    79 confirmations left
18474   2013-06-08 20:06:47   1:10:33   13092667   3365   0.00000001   240455   25.05091001    77 confirmations left
18473   2013-06-08 18:56:14   0:25:00   4831359   1128   0.00617386   240448   25.34652816    70 confirmations left

I'd suggest lowering powertune to at least -10 to make it silent and lower intensity to be able work in parallel.

Hi! I've just updated my android offline "paper bitcoin client" - https://play.google.com/store/apps/details?id=ru.valle.btc

Now it can not only to generate key-address pair, but also it can create and sign transactions using your private key, so now you can quite easily spend money from your paper wallet. Mini, brain wallet, WIF, WIF-compressed, BIP 38(both ec modes) private key formats are supported. Enjoy!

sources: https://github.com/ValleZ/Paper-Wallet

NEW in version 2.2.0 - wallets printing, view QR codes and changing password for encrypted keys

ps Check out the app's permissions ;-)

Let me guess - no 2 factor auth or any other protection, just password?

0fe41c635033

I think if bitcoins is not a fiat money, it worth legally nothing. That's why you can gift/transfer it without any tax liabilities. However, exchanging it to fiat is your income, so you must pay taxes for that.

Why current system when you pay income tax on realized gains + sales tax doesn't fit there?

Thanks everyone, that explains. One more question - is there a way to check miner status/bitcoins amount mined etc? Maybe some json api is functional?

So, can anyone described what's going on and when it is supposed to be fixed?

I've noticed that this phone of bfl's chip have geostamp pointing to Unive in Fremont, CA: http://ow.ly/i/1EM8o
The company produces ASICs from 130nm to 600nm.

Hey, I've just posted simple app to create address/mini private key pairs _offline_. The app have no permissions whatsoever, check it out:

https://play.google.com/store/apps/details?id=ru.valle.btc