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News: Latest Bitcoin Core release: 0.18.0 [Torrent] (New!)
 
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181  Bitcoin / Bitcoin Technical Support / Re: If I am running a node can I make it two? on: June 04, 2015, 02:53:36 AM
Unless you have a complete potato internet i.e you have trouble refreshing this page, you are more than fine on bandwidth.

Some beg to differ:

nullc / gmaxwell:
Quote
On bandwidth, it really is a problem for many users. For buffer bloat affected routers it Bitcoin Core currently makes your internet connection completely unusable periodically, multiple second ping times that kill web loads and knock out VoIP-- even when you are outbound only. After moving to silicon valley and finding myself inflicted with DSL instead of the nice FiOS I had back east, I've intentionally not fixed the problem (by sticking a FQ-CoDeL linux router in front of the DSL modem) for myself at home (because only ultra geeks will use that fix and I want to experience what other people experience), but it's gruesome and I have to turn off Bitcoin during conference calls. (This is also actually a problem on my offices newly installed 160/30mbit comcast service).
https://www.reddit.com/r/Bitcoin/comments/37vsh4/interview_with_gavin_andresen_and_peter_todd_on/crqlxfc
182  Bitcoin / Bitcoin Technical Support / Re: If I am running a node can I make it two? on: June 03, 2015, 03:25:12 PM
IIRC, the recommendation is to have just one node to the outside world and all nodes on the inside network connect to that one. Different port won't help, as other clients will look for port 8333. You could consider having your one node available on TOR as well though. That way you'd have "two" nodes, one on "clearnet" and one on TOR, but of course on just one PC with a single instance of Bitcoin Core.
183  Bitcoin / Mining / Re: The cost of electricity in the world on: June 03, 2015, 03:13:33 PM
Global electricity price comparison:

http://en.wikipedia.org/wiki/Electricity_pricing

Horribly inaccurate and given the swings (mainly one way) in USD to every other currency, even less accurate. Actual industrial rates, the ones that matter, aren't represented on there for most countries.

Agreed. Wiki also doesn't take different states / provinces into account. It's a start, but you need to do more research if you have an actual project on hand.
184  Bitcoin / Bitcoin Technical Support / Re: Block issues on Bitcoin Core ? on: June 02, 2015, 09:14:09 AM
It's not normal that you have to sync the whole blockchain at every start up. By restarting the PC you probably corrupted it. Once everything is back to fully synced your bitcoins will be back as well. In the future don't shut down / restart your PC whilst the program is running and wait for the grey info box to disappear when you close the program before shutting down.
185  Bitcoin / Mycelium / Re: Mycelium Bitcoin Wallet on: June 01, 2015, 02:53:37 PM
A couple of suggestions:

- Can we get a "reading confirmation" of sorts once a chat is going. Maybe a tick, similar to Whatsapp, if you're familiar with that app.

- Make the trade history sortable by date, asc. and desc.
186  Bitcoin / Mycelium / Re: Mycelium Bitcoin Wallet on: June 01, 2015, 02:45:08 PM
I've just got a brand new Android phone, so of course the first app I installed was Mycelium. I started with a fresh, new wallet.

However, I also still had an old Mycelium wallet on my previous phone (which is now broken). I have the 12 word seed. Is there any other, perhaps temporary wallet (preferably online) where I can import the seed for my old Mycelium version, so I can send the remaining bitcoins from there to my new wallet?

Some info in this thread: https://bitcointalk.org/index.php?topic=909238.0
187  Bitcoin / Bitcoin Discussion / Re: Is Blockstream the reason why 4 core developer won´t increase the blocksize? on: May 31, 2015, 03:39:22 PM

Better comments here: https://www.reddit.com/r/Bitcoin/comments/37vg8y/is_the_blockstream_company_the_reason_why_4_core/
188  Bitcoin / Bitcoin Discussion / Re: Bitcoin Core or XT? POLL on: May 31, 2015, 02:22:21 AM
I don't see any statistics of XT nodes on this picture, most of the nodes are running 0.9.x -0.10.x

https://getaddr.bitnodes.io/dashboard/#user-agents

It will take time:
https://getaddr.bitnodes.io/nodes/?q=/Bitcoin%20XT:0.10.0/
https://getaddr.bitnodes.io/nodes/?q=/Bitcoin%20XT:0.10.1/

15 at the moment.
189  Bitcoin / Development & Technical Discussion / Re: Extracting the Private Key from a TREZOR ... with a 70 $ Oscilloscope on: May 31, 2015, 02:06:31 AM
Wow much respect for johoe.

He should be hired as a professional tester by BTC hardware wallet companies.

Just curious what Johoe himself uses to store his bitcoins? Hardware wallet? Air-gapped machine?  Multisig?

He mentions it at the bottom of his report:

Quote
I own two TREZORs my­self (one for stor­ing my sav­ings and one for hacks like this) and I am still think­ing hard­ware wal­lets are the best way to pro­tect against most at­tack vec­tors.
190  Bitcoin / Development & Technical Discussion / Re: Extracting the Private Key from a TREZOR ... with a 70 $ Oscilloscope on: May 31, 2015, 02:02:55 AM
I always feel uneasy to connect a device with private key directly to an untrusted online computer

I hope something like a audio modem could be implemented but seems it's too slow to be practically used?

https://bitcointalk.org/index.php?topic=135423.0

It is already implemented in Electrum, just not easy to setup and use...

Be it slow or fast it seems a nice and secure idea, I think...

Any wallet software that has offline signing functionality will work using software like minimodem. An example using Armory:
https://bitcointalk.org/index.php?topic=735111.0

How fast it works depends on your tx size. I agree slow don't matter much in this case, as security should be our main concern.
191  Economy / Speculation / Re: Analysis never ends on: May 31, 2015, 01:54:39 AM
They say bitcoin network reaching it's transactions per block throughput...


Some sort of spam experiment?

https://bitcointalk.org/index.php?topic=1075590.0
192  Bitcoin / Hardware / Re: [Review] Spondoolies SP20 review - A Green miner with a Loud fan on: May 30, 2015, 08:02:12 AM
I flipped my fan and eventually got melted connectors. Ambient temperature is pretty high at that location though.

Thanks for sharing this, Newar!

How hard were you pushing your SP20 in terms of voltage/power/fan settings?

The only limit I had in place was max. 250 Watt instead of 288 Watt. IIRC, 250 is offcial Molex spec limit, but Spondoolies were told 288 is ok by their supplier (this info I found in one of the threads, but don't have a link handy). Considering the temps at that location I went with the official spec.

Perhaps unsurprisingly, the top connector in the centre of the grille got the worst of it. Got to love basic physics! Wink  Maybe to flip the unit so the connectors are on the bottom would be something to consider.
193  Bitcoin / Mining / Re: The cost of electricity in the world on: May 30, 2015, 07:15:47 AM
$0.20-$0.30 kWh in San Francisco  Cry
$0.16352 at lowest, $0.33504 highest
http://www.pge.com/tariffs/tm2/pdf/ELEC_SCHEDS_E-1.pdf

Looking to build a solar power setup soon.



wtf? Until now I had impression, that everybody in US had almost free electricity. ~0.18 is Europe rate..Smiley

It differs by state. Same as in many other countries. It is not "free" to transport cheap electricity from Washington state to California for example.
194  Economy / Trading Discussion / Re: USD volume traded in bitcoin - is the chainblock reliable? on: May 30, 2015, 07:13:01 AM
https://bitcoinaverage.com/markets#USD and http://www.bitcoincharts.com/markets/currency/USD.html might give you some indication as well.
195  Bitcoin / Hardware / Re: [Review] Spondoolies SP20 review - A Green miner with a Loud fan on: May 28, 2015, 07:46:17 AM
I flipped my fan and eventually got melted connectors. Ambient temperature is pretty high at that location though.
196  Other / Off-topic / Re: Let's Count to 21 Million with Images on: May 28, 2015, 07:03:59 AM
197  Bitcoin / Mining support / Re: Pollen from trees and mining on: May 28, 2015, 05:37:10 AM
Get a few bee hives and let the bees take care of it  Grin
198  Bitcoin / Hardware / Re: Mining Container ~100kW by Polivka GmbH on: April 21, 2015, 11:00:35 AM
Yup, mixed up prices with new.
199  Bitcoin / Hardware / Re: Mining Container ~100kW by Polivka GmbH on: April 21, 2015, 01:57:21 AM
If they could manage to do a low priced version of one if these that would be interesting.  I could see people going in together to buy and splitting cost.  But it has to be a practical cost.  If it cost's to much it would lose all the benefit of cheap electricity.

The main cost is the container. If I'm not mistaken a used 20ft-er can be had from about 6k USD. The rest depends on how much time you can invest in doing it yourself and your skillset.

I'm glad to see that this project seems to move forward!
200  Economy / Service Announcements / Re: UnTorrent.Me - Convert torrents into zip downloads on: April 21, 2015, 01:49:23 AM
Works very well for me as well.

Minor things (Chromium): When adding a new torrent, the info bar shows 100% right away. Also, can you make the "URL to check back later" text and link a bit bigger? Lastly can you make the logo a link to the home page?
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