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3621  Bitcoin / Hardware / Re: Big bitcoin rig/cabinet manufacturers (50-150 TH range) on: July 07, 2017, 06:55:32 AM
I asked bitfury and this was their response.

BlockBox IC -
The BlockBox IC (15PH unit) is sold out.  The last batch BlockBox IC sold for appx $2.5m USD per 15PH container consuming 2MW.

BlockBox AC -
BlockBox AC is available as a 7.5PH unit consuming 1.1MW at a price of $1.2M
* BitFury's most advanced 16nm ASIC chip
* Housed at our location in Canada at 3 cents / kwh
* BitFury's full service + energy costs per mth = total @ $35K/mth
* Delivery in 60 days after signing
* Limited Order Run  




Their 16nm ASIC runs at 100Gh while consuming 0.1J/Gh/s = 100 Gh * 0.1J/Gh/s = 10Watt. (it runs faster with immersion cooling, but only AC blockboxes seem to be available).
1 Watt = 10Gh/s
http://bitfury.com/products#16nm-asic

1.1Mw = 1 100 000 Watt
With their chips, that should be 11.000.000 Gh/s = 11Ph/s. Let's assume there is a little overhead, and some underclocking... This container should run at ~10Ph/s if i'm not mistaking. To bad they say it's only 7.5 Ph

https://www.coinwarz.com/calculators/bitcoin-mining-calculator/?h=7500000.00&p=2600.00&pc=0.00&pf=0.00&d=708659466230.33200000&r=12.50000000&er=2596.16000000&hc=0.00

The monthly income of one of those puppies should be ~$207k minus $35k (power + maintenance) = $172k/month.

$1.2M/$172k =~ 7

The ROI of this setup at current diff, block reward and price should be less than 7 months...

If it wasn't so damn expensive  Undecided




3622  Bitcoin / Bitcoin Technical Support / Re: Method not found on: July 06, 2017, 07:38:43 PM
could you execute the following commands and post the output?
Edit out passwords (and other sensitive information)

Code:
which bitcoin-cli
pwd
whoami
cat /etc/os-release
uname -a
bitcoin-cli getinfo
ps -ef | grep bitcoind
lsof -i :8333
lsof -i :8332

also, this one WITHOUT usernames and passwords:
cat ~/.bitcoin/bitcoin.conf
3623  Bitcoin / Mining / Re: New to mining on: July 06, 2017, 03:05:40 PM
hey there im new to bitcoins, new to mining...

so i have been doing some research, and what not, and would like to try this whole mining thing. i figure i would just play around on my computer and go from there..

so i have been downloading different mining software, and watching tutorials, but nothing seems to be working right. I cant get to the actual mining part. i started with GUI miner. but non of the servers seem to work..

downloaded awesome miner.. and that was wayyyy over my head.

is there a miner that is easy to use, simple and can start mining right away?

Yes i know that it uses power, but i am currently running a few games in the background 24/7 anyways so its nbd to me at this point.


There is no point in CPU or GPU mining. If you had a latest gen production server (XEON cores, fast memory,...) equipped with 6 latest gen GPU's, and you let it run 24/7 for a full year, you'd make less than $10/year in BTC...
I did the math a while ago, but i'm to lazy to look up the exact thread... Anyways, mining with your desktop PC 24/7 will make you less than a dollar a year...

All that software you download for mining on your PC has been obsolete for years... Even if the dev recompiled recent versions, there is no way you'd be able to get a single share on a pool, and the odds of mining a block solo are astronomically small (allmost nonexistent)
I tried my computer. I have an old video card R7 200 series and regular 4-core processor AMD. I got an average of 50-80 cents a day. The temperature of the graphics card doesn't exceed 63 degrees Celsius. So that your calculations are incorrect. This of course does not mean that you can do it your income, but I did it for the truth.

you are in the bitcoin mining subforum... Please prove that you make 50-80 cents/day mining with an old GPU, cause i don't think this is possible...
I did the full math a while back, and even with a xeon server and 6 high end graphic cards, you'd make about $10/year...

If you are mining altcoins, things change, but this is the bitcoin mining subforum...

https://en.bitcoin.it/wiki/Non-specialized_hardware_comparison
R7 : not in the list, but the best graphic card generates 0.8 Gh/s
AMD processor: don't know which one, but the best (an opteron) mines at 0.1 Gh/s

Combined, it would be very hard to believe you're mining at more than 0.9 Gh/s
https://www.coinwarz.com/calculators/bitcoin-mining-calculator/?h=0.9&p=2600.00&pc=0.0&pf=0.00&d=708659466230.33200000&r=12.50000000&er=2598.40000000&hc=0.00

At this diff, block reward and price, that equals 0.00012 BTC/year... This is $0.3 at current price
3624  Bitcoin / Bitcoin Discussion / Re: Do altcoins effectivrly "dilute" the 21 million BTC limit? on: July 06, 2017, 01:06:31 PM
No, it won't. BTC is BTC and all other altcoins are well "alt"-coins, they are essentially a different currency. It's the same thing as there are USD and GBP, but neither of them dilutes either of them.

That limit is almost 21 million BTC (minus a few Satoshis).
Why minus few satoshis? Isn't the limit exact 21 Million BTC?

As far as i know, a miner is not forced to add 12.5 BTC reward as coinbase transaction (at current block reward), only blocks where the reward + fees exceed 12.5 + sum of the fees of all tx's in the block are rejected.


here you go, one satoshi lost forever:
https://blockchain.info/block-index/139574

This block alone limits the total BTC ever in circulation to 20.999.999,99999999 satoshi's Wink
3625  Bitcoin / Bitcoin Technical Support / Re: Method not found on: July 06, 2017, 12:03:47 PM
Code:
bitcoin-cli getaccountaddress
error code: -32601
error message:
Method not found
bitcoin-cli getaccountaddress ""
error code: -32601
error message:
Method not found
wtf?

did you include the account? In other words, did you enter
bitcoin-cli getaccountaddress
or
bitcoin-cli getaccountaddress ""

Only the second command is correct

you can also read the help:
bitcoin-cli help | grep account
bitcoin-cli help getaccountaddress
3626  Economy / Trading Discussion / Re: The Forbidden Fruit: Selling BTC(and altcoin) on EBAY AHMG on: July 06, 2017, 11:16:53 AM
I'd be cautious, even if they don't scam you the providence of their BTC might be dubious.

Why don't they sell on an exchange?  Perhaps they acquired their Bitcoins via illegal means.  Do you want the blockchain showing you as the new owner of those coins?

Same argument can be given about the FIAT in your pocket... Is it possible that $10 bill was once used in a sting operation to capture a drugdealer? Maybe it's marked? Maybe it has traces of cocaine?

https://themerkle.com/what-is-bitcoin-fungibility/
3627  Bitcoin / Mining / Re: New to mining on: July 06, 2017, 11:08:50 AM
You can use pool Mining. That one is simple. Also you can mining easily.


It does not matter. If you try to mine bitcoin in a pool using your CPU or GPU it'll still take decades before you mined enough BTC to even reach the minimum withdrawal limit. So, eventough it might be simple and easy to mine with your CPU/GPU (wich i doubt, but to be honest, i haven't tried in a very long time), it's defenately not worth the effort.
3628  Alternate cryptocurrencies / Service Announcements (Altcoins) / Re: 10.000 € Giveaway for our Members on: July 06, 2017, 08:04:54 AM
Thanks for the information. I think that's a good way to go for us aswell. How reliable is that list, when it was edited ~1,5 years ago? That's a long time.

Here is how we'll do it: At 10k users in our channel, we'll start the escrow and everyone can see that we are legit.  Wink

The list is still pretty accurate... Just look at the recent trust ratings of those escrow members, it'll tell you if he/she still is OK to use.

I have to say i think you're still mixing things up. Finding an escrow after you've reached (part of) your goal doesn't mean all that much to be honest. An escrow is an insurance you take before you start your campaign Wink

That being said: i see no harm in your setup (i would never join if the funds weren't escrowed, but i see no harm in your effort to get people to join), so i really hope you pull this off and start a great channel!
3629  Alternate cryptocurrencies / Service Announcements (Altcoins) / Re: 10.000 € Giveaway for our Members on: July 06, 2017, 07:39:05 AM
We'll give away those 10.000 € for sure. What escrow service do you suggest?  Smiley

It's more or less customary to use one of the trusted escrows on this forum. Since €10k =~ 4.4 BTC, you might opt to use 3 or 4 escrows.

Here's an old list of trusted escrows: https://bitcointalk.org/index.php?topic=855778.0 It was last edited ~1.5 years ago, since then other trusted escrows poppep up, but the ones in this list would still work.

BTW, B4RF is completely correct, i don't think you'll get many users to start using your channel with the mere promise of €10k, you have to make sure that you can prove the fact that you're legit, and escrowing the funds is indeed a good way to do this.
3630  Bitcoin / Mining / Re: New to mining on: July 06, 2017, 06:50:37 AM
hey there im new to bitcoins, new to mining...

so i have been doing some research, and what not, and would like to try this whole mining thing. i figure i would just play around on my computer and go from there..

so i have been downloading different mining software, and watching tutorials, but nothing seems to be working right. I cant get to the actual mining part. i started with GUI miner. but non of the servers seem to work..

downloaded awesome miner.. and that was wayyyy over my head.

is there a miner that is easy to use, simple and can start mining right away?

Yes i know that it uses power, but i am currently running a few games in the background 24/7 anyways so its nbd to me at this point.


There is no point in CPU or GPU mining. If you had a latest gen production server (XEON cores, fast memory,...) equipped with 6 latest gen GPU's, and you let it run 24/7 for a full year, you'd make less than $10/year in BTC...
I did the math a while ago, but i'm to lazy to look up the exact thread... Anyways, mining with your desktop PC 24/7 will make you less than a dollar a year...

All that software you download for mining on your PC has been obsolete for years... Even if the dev recompiled recent versions, there is no way you'd be able to get a single share on a pool, and the odds of mining a block solo are astronomically small (allmost nonexistent)
3631  Bitcoin / Bitcoin Discussion / Re: Where is it safe to store money? on: July 05, 2017, 01:40:38 PM


Damn that's a long list.

I thought these exchanges work under the same policy as the brokers did. For example I'm covered upto 500k for securities and 100k for deposits -by brokers I mean stock brokers using their platform. I thought these exchange people would have something similar.

What about wallet companies? Electrum ? what if it fails?

I'm not a trader, but in the time i've been involved with BTC, i've seen several exchanges getting hacked, starting to lock a lot of user's accounts and/or just plain run away... It is very rare to see the victims reimbursed.

As for your second question: electrum is an open source wallet (most, but not all, wallets are open source). If ThomasV decides to stop support, somebody else can continue where he left off. If nobody is interested, you can still use your recovery seed to generate your xprv, and derive your private keys/public keys/addresses from this xprv.
In short: in the (very slim) chance electrum ever seizes to exist due to no dev wanting to continue the project, electrum users will still be able to generate a private key to spend all unspent outputs that were spendable by addresses generated by their electrum wallet... However, it would take some technical know-how to do this.
3632  Bitcoin / Bitcoin Discussion / Re: Where is it safe to store money? on: July 05, 2017, 01:09:25 PM
Hi,


Just wondering , is it safer to keep money at an exchange like place poloniex or kraken what not or a wallet like Electrum?

It is very neat to have it all in one place like an exchange, for example, I currently mine and use their address to deposit my earnings for bitcoin I used to give my Electrum address but now I'm thinking it's better to just keep them at one spot?

Pros and cons of one vs another?


TIA

the cons of storing your funds in an exchange or online wallet:
  • the owners of the exchange have access to your private keys, so they can use your unspent outputs (steal). so you lose everything
  • if the exchange gets hacked, you lose everything
  • if the exchange goes bancrupt, you lose everything
  • if you do something against the exchange's TOS, they can block you (you lose everything)
  • you're only able to do the things that were pre-programmed by the exchange's administrators. There's a big chance you won't be able to sign messages with your address, double spend inputs, pick your own fees,...

If you're not (the only one) in controll of your private keys, you're not (the only one) in controll of your funds.

The only "upside" i can imagine by storing all your funds on an exchange is that it's convenient... So you can pick: convenience or security.
3633  Other / Meta / Re: [Proposal]2 Factor Authentification via email / mobile on: July 05, 2017, 12:49:16 PM
Yeah please, we need this. Too many accounts are getting hacked and plus due to the earlier DDoS attack, all the emails too are exposed
Was it really due to the Ddos attack ?  Roll Eyes
From my understanding, DDos attacks don't breach data or leak information as the are only intended to overload the servers.
The data breach certainly just wasn't a Dddos but a planned hack through BitcoinTalk’s ISP provider (that's what I know and I could be wrong )



Don't realy remember how the hackers succeeded in getting their hands on a database dump, but you're 100% correct about DDos'ing...
Even a DDos using a huge botnet will not lead to a data leak.

It's right there in the name: Distributed Denial of Service... Basically, and attack that's aimed at hurting a company by sending so much requests using a distributed system that the service becomes unavailable Wink
3634  Economy / Marketplace / Re: Adding you in skype for a job offer here(is it safe or not??) on: July 05, 2017, 11:21:18 AM
i don't think there is a clear-cut answer for this. I'm not a skype user (probably never will be), but i've been asked for my skype details on numerous occasions.
IF i were a skype user, i would probably have denied 75% of those requests, but indulged the other 25%.

You just have to know what you're doing...
- when talking over skype, the other party gets to know what you look like, and how you sound
- he/she can probably deduce your country (native english speaker, accent, people talking on the background)
- the other party can see part of your house/location you're skyping
- don't know if this is fixed (yet), but skype used to lack proper end to end encryption, and they were using central servers
- skype requires a phone number, which can be used to identify you
- there used to be tricks for the other party to discover your home ip address

In some cases, all these 'vulnerabilities' might not be a problem (at all), but in most cases, i wouldn't use skype.

An extra factor is that skype conversations are a bit harder to prove than discussions on the public forum... In case the other party turns out to be a scammer, it might be handy if your conversations were all public.
3635  Other / Beginners & Help / Re: New bitcoins are mined? on: July 05, 2017, 11:14:19 AM
Then miners will lose interest if they can´t make money, won´t they?
What will happen then? Huh

the search function is in the top right corner Wink
https://cse.google.com/cse?cx=016660200577587308545%3Aesf40ml9aag&ie=UTF-8&q=what+happens+if+all+bitcoins+are+mined&sa=Google+search#gsc.tab=0&gsc.q=what%20happens%20if%20all%20bitcoins%20are%20mined&gsc.page=1
3636  Bitcoin / Bitcoin Technical Support / Re: Watch Address / Lost Private Key on: July 04, 2017, 12:56:10 PM
Ok so I stupidly added all my coins to a watch address now I cant seem to find the private key for them.. I still have the wallet.dat file and password but the coins seem to be stuck now in this watch address.   Please help..   $500,000 of coins now stuck....

Is there any way to recover the key??


Where did you get this watch address?
3637  Bitcoin / Development & Technical Discussion / Re: Lucky but not? on: July 04, 2017, 11:51:53 AM
Hey guys,

Today I found https://k3dt.eu/bitcoin-generator/ which generates a wallet for you and guess what? I ended up on a bitcoin address with 69 bitcoins; however, its private key has no meaning and it's not possible to import it anywhere.

Can anyone explain please? Check screen below:

http://imgur.com/a/5gMVZ



Looking at the private key, i'd say this one probably is a hoax or a bug.
Why would you use an online site to generate a private key, that sounds incredibly unsafe and risky...

I just wanted to see the concept behind it. Otherwise, I checked the address on BlockChain.info and it has exactly the same amount disclosed. Maybe the problem is with the private key.

Your screenshot show 6 Billion BTC as unspent outputs. So, it must be a bug, since at this moment, there could only be ~16.5 Million in cirulation. This is why i labeled it a bug or a hoax.
Could you share the blockchain.info url?
3638  Bitcoin / Development & Technical Discussion / Re: Lucky but not? on: July 04, 2017, 11:26:46 AM
Hey guys,

Today I found https://k3dt.eu/bitcoin-generator/ which generates a wallet for you and guess what? I ended up on a bitcoin address with 69 bitcoins; however, its private key has no meaning and it's not possible to import it anywhere.

Can anyone explain please? Check screen below:

http://imgur.com/a/5gMVZ



Looking at the private key, i'd say this one probably is a hoax or a bug.
Why would you use an online site to generate a private key, that sounds incredibly unsafe and risky...
3639  Bitcoin / Bitcoin Discussion / Re: bitaddress.org for Paper Wallet on: July 03, 2017, 01:32:34 PM
Never heard bitaddress.org, is this like MyEtherWallet.com for ETH??
No
myetherwallet.com = an online wallet = unsafe (imho)
bitaddress.org = a paper wallet generator = safe (if used correctly)

Is this safe?
Yes

I am using Electrum and Bitcoincore for Windows. I think this is much safer.
No, if a paper wallet is generated correctly, and a strong password is chosen for BIP38 encryption, it should be much safer than a desktop wallet like electrum or core (imho).
Offcourse, if you didn't use bip38 encryption, or you used an infected PC to generate your paper wallet, it's not safe.

3640  Economy / Service Announcements / Re: Blockchain's FRECOINLAUNDRY Tumbler on: July 03, 2017, 01:17:48 PM
I encourage everyone to use Blockchain's FREECOINLAUNDRY tumbler.

It's FREE and MUCH FASTER than any other tumbler out. I love it!

z7zeu42el7ceoxf2.onion

I guess this might be a version with a 100% mixing fee  Grin
I would never trust an unknown darknet mixer... No offence tough!
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