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3741  Economy / Services / Re: Bitcoin Vanity Addresses! on: December 31, 2015, 11:23:24 AM
Hey Shorena
Can you gimme a quick quote on the prices for these: 1JAYDiP & 1DiPAK
thanks!

Sorry, but I wont be back home until 2nd January.

That's fine, happy new year!

Thanks Smiley You too.
3742  Economy / Scam Accusations / Re: Fruito / Classicdoubler SCAMMER on: December 31, 2015, 11:06:35 AM
Link to account: https://bitcointalk.org/index.php?action=profile;u=265431

For the future: how to make sure you control an account:

#1 get a signed message with the staked address for the account or an old unedited post
#2 change the password
#3 change the mail address
#4 remove or replace the security question
#5 stake a new address

#1..I guess I don't understand this step. mind explaining a bit to me? Is that the only way to keep them from taking an account back?

Its not enough alone, no. You search the account for old unedited posts, like this[1] and ask for a signed message. E.g.

Code:
This is fruito from bitcointalk.org and today is 2015.12.31
Today I sell my account to BreakTheBookies for 0.16 BTC.

or something like that. With that you can make sure - if needed - that the account will not be restore with a signed message to theymos[2]. I made a thread here[3] if you want to learn how to sign messages and verify them.

PS. Thanks for red tagging this jerk, I feel a bit better.

sure, no problem. It wont give you the account back though.

[1] https://bitcointalk.org/index.php?topic=1077420.msg11608132#msg11608132
[2] https://bitcointalk.org/index.php?topic=497545.0
[3] https://bitcointalk.org/index.php?topic=990345.0
3743  Bitcoin / Bitcoin Discussion / Re: Let's use mBTC instead of BTC on: December 31, 2015, 10:41:14 AM
I personally prefer Satoshi, its way more fun to transfer a million satoshi than 0.01 btc or 10 mBTC.

No seriously, just use whatever you prefer, I think most are familiar with the denominations

1 BTC = 108 (100 million) satoshi
1 mBTC = 105 (100k) satoshi
1 µBTC = 102 (100) satoshi
3744  Other / Archival / Re: Updated Overview of Bitcointalk Signature-Ad Campaigns on: December 31, 2015, 10:10:46 AM
OP updated once more. Thanks Shorena.

<3

Probably the last time this year though.
3745  Bitcoin / Bitcoin Discussion / Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it on: December 31, 2015, 10:07:33 AM
Nice attempt DannyHamilton! There must be a way to make it much more efficient as the last three addresses were found so fast it couldn't have been by brute forcing.

Maybe if we learn a bit more from how the numbers were generated it could greatly optimize the program.

"7" and "8" are close together as well. Even if the numbers are created randomly is not that unreasonable to assume that a few numbers in the series are close together.

@Danny does the tool you wrote/modified support using a GPU by any chance? I would suspect thats the only way to get to 50+ bit within a reasonable amount of time. If we assume similar performance to vanitygen, we can expect 30-40 million keys per modern GPU.
3746  Economy / Scam Accusations / Re: Fruito / Classicdoubler SCAMMER on: December 31, 2015, 09:59:25 AM
Link to account: https://bitcointalk.org/index.php?action=profile;u=265431

For the future: how to make sure you control an account:

#1 get a signed message with the staked address for the account or an old unedited post
#2 change the password
#3 change the mail address
#4 remove or replace the security question
#5 stake a new address
3747  Other / Archival / Re: Updated Overview of Bitcointalk Signature-Ad Campaigns on: December 31, 2015, 08:35:49 AM
campaign who managing by yahoo seems all the campaign use master-p as escrow, how about the continues of the campaign ? still running?
-snip-
yeah i see coinbet and ora-mine was paid. and ore-mine will running again until 7-8 week again
but i cannot see in OP ore-mine campaign

Nope, it was not added because there is a high chance its a ponzi.
3748  Other / Archival / Re: Updated Overview of Bitcointalk Signature-Ad Campaigns on: December 31, 2015, 08:29:35 AM
This is a great tool! Would you mind to add us?

The signature campaign is active. What exactly do we have to do to be considered so? OK I see now. Saturday will be the day the rest get 1st payment.


Cheers.

Just give us a post here and one of us will update ASAP.

Coinbet24 paid, moved to A and removed the * -> http://pastebin.com/5Vr654Wy
3749  Bitcoin / Bitcoin Technical Support / Re: Which OS for bitcoind server? on: December 31, 2015, 08:21:41 AM
-snip-
Well, with 0.11.2 my full node isn't so stable anymore, too. Another user (Real-Duke) had the same exprience so I think it this problem is related to Core.
Please let me know if you find a solution. Wink

Well, honestly my solution is: have some free time, take the donation coins I got for the node and get a stronger server for a year, do everything from scratch. 2 instead of 1 cores, 4 GB RAM instead of 2 GB and enough disk space to no longer run in pruned mode, might do the trick.
3750  Bitcoin / Wallet software / Re: How to run Vanitygen on Ubunutu live USB? on: December 31, 2015, 08:09:18 AM
Did you run vanitygen with the pubkey option -P or without (just 1Chris)?

If you ran it without -P you can just import the private key into your wallet.

If you ran it with -P you need to conver the private key from vanitygen its hex version. You can do this via bitaddress with the "Wallet Details" options. Once you have both private keys in hex format you go to "Vanity Wallet" and put them in the fields for Step 2. Select add and click Calculate. The private key you get can be imported in your wallet.

Oh I ran it without -P... I didn't know that's how you did it. Rather than importing the key I made on Windows (not too secure) I'll look into the other method. Thank you very much!

If you do it yourself its perfectly fine to run it without -P the option is just to allow someone else to do the work for you without them knowing the final private key. If you do the work on your own machine its fine to run it just with the prefix you want.

If you dont trust the machine you can do split key vanity over two machines you own, but its probably better to make sure you can trust your own computer as much as possible.


Off topic: The oil came in today and my wife loves it. Also got a freebie from them that smells like orange. She seems to like that one too! Woohoo! "It smells like vitamin C tablets!" lol.

lol, as long as she enjoys it I guess
3751  Bitcoin / Bitcoin Technical Support / Re: Unconfirmed Transactions on: December 31, 2015, 08:02:17 AM
From personal experience, creating a backup is not needed, but its no harm either.

I would not change the shortcut, as you will only do this once (or lets hope so), but use "run".

#1 make sure core is closed
#2 hit win+r to open "run"
#3 enter: C:\Program Files\Bitcoin\bitcoin-qt.exe -datadir=H:\Bitcoin -zapwallettxes
#4 confirm with ok and let core do its thing

If you want to read the log file while its doing so you can open it from H:\Bitcoin\debug.log

3752  Bitcoin / Wallet software / Re: Tesnet wallet for iPhone on: December 30, 2015, 11:00:25 PM
Copay claims to have testnet support. I've never tested their app, but it says on the changelog they support testnet Smiley

Thanks, I will give it a try tomorrow.
3753  Bitcoin / Wallet software / Testnet wallet for iPhone on: December 30, 2015, 09:38:53 PM
I just wanted to show someone bitcoin via testnet, its more fun to transfer 1 tBTC than it is to transfer 0.01BTC. I was unable to find a testnet wallet in the appstore though. Is there none?
3754  Economy / Services / Re: Bitcoin Vanity Addresses! on: December 30, 2015, 09:34:17 PM
Hey Shorena
Can you gimme a quick quote on the prices for these: 1JAYDiP & 1DiPAK
thanks!

Sorry, but I wont be back home until 2nd January.
3755  Bitcoin / Wallet software / Re: How to run Vanitygen on Ubunutu live USB? on: December 30, 2015, 06:27:31 PM
Did you run vanitygen with the pubkey option -P or without (just 1Chris)?

If you ran it without -P you can just import the private key into your wallet.

If you ran it with -P you need to conver the private key from vanitygen its hex version. You can do this via bitaddress with the "Wallet Details" options. Once you have both private keys in hex format you go to "Vanity Wallet" and put them in the fields for Step 2. Select add and click Calculate. The private key you get can be imported in your wallet.
3756  Bitcoin / Bitcoin Technical Support / Re: Which OS for bitcoind server? on: December 30, 2015, 06:13:52 PM
With only 2 GB of RAM, definitly a Linux over Windows Server R whatever. Have good experience with Ubuntu for running a node.

The GPU seems unneeded for a server if you can add more RAM/CPU instead.

My mobo is limited to 2 GB DDR2 RAM (2x1GB - double channel) and I'm not intended to change it right now.
However I'm planning to use Ubuntu, but will my build hold one of the latest Ubuntu versions such as 14.04.3 or 15.10?
According to their system requirements I'd need of 3 GB or more RAM if running 64-bit CPU.

The RAM is the most problematic thing in my experience.  If you could do more, I'd do it.  You'll probably need to ensure that you have swap on.

Did you use little RAM on recent Ubuntu versions?

If you don't need a GUI go for Ubuntu server over Ubuntu desktop. 2GB RAM is too little, the server version uses around 150MB RAM vs atleast 500MB RAM for desktop one, but even still you're cutting it close with 2GB, you'll start running into problems as the blockchain grows.

I can also try with Debian, Gentoo, Arch, CentOS...

However my RAM banks are the best DDR2 Corsair twins with heatsink, they work like they're 4GB  Grin

The speed of the RAM is not so important more than the amount. Using a different OS wont make a huge difference either as it's bitcoind that needs the RAM, the OS will only use a tiny part of what bitcoind uses.

So gotta buy new mobo which allows more RAM space and buy more RAM banks as well?

No. 2GB is not much, but for only a full node its enough. You will need to limit DB cache, number of connections and maybe do some other tweaks. My full node runs on a cheap VPS with 2GB ram and its fine. Its not the fastest, but its usually stable. After the most recent patch it seems to crash every ~17 days, but Im still investigating that. Might be unrelated to core.

memory usage from a few days ago:

Code:
                | transactions  |memory usage   
yyyy-mm-dd-hh:mm|count|size in b|used|free     
------------------------------------------------
2015-12-28-00:00|24402|338327947|1308|739
2015-12-28-00:30|23370|338127854|1302|745
2015-12-28-01:00|23574|338655382|1301|746
2015-12-28-01:30|23725|339039882|1306|741
2015-12-28-02:00|23634|339813806|1300|747
2015-12-28-02:30|23870|340195248|1300|747
2015-12-28-03:00|23636|340157228|1302|745
2015-12-28-03:30|23733|341013497|1300|747
2015-12-28-04:00|23460|341017625|1301|746
2015-12-28-04:30|24848|342582554|1301|746
2015-12-28-05:00|24096|342558323|1332|715
2015-12-28-05:30|24039|342669796|1300|747
2015-12-28-06:00|25705|344358559|1303|744
2015-12-28-06:30|24743|345370069|1300|747
2015-12-28-07:00|26275|346701703|1300|747
2015-12-28-07:30|24356|345501274|1301|746
2015-12-28-08:00|24453|344987997|1300|747
2015-12-28-08:30|24519|345550638|1301|746
2015-12-28-09:00|25585|347558624|1301|746
2015-12-28-09:30|25044|348234068|1299|748
2015-12-28-10:00|23972|346417096|1301|746
2015-12-28-10:30|24424|347076342|1301|746
2015-12-28-11:00|27922|349325898|1300|747
2015-12-28-11:30|30970|351472383|1315|732
2015-12-28-12:00|31415|352872824|1330|717
2015-12-28-12:30|27474|351877924|1330|717
2015-12-28-13:00|25243|351622568|1329|718
2015-12-28-13:30|26148|352678665|1329|718
2015-12-28-14:00|26580|353777518|1329|718
2015-12-28-14:30|26118|353576379|1315|732
2015-12-28-15:00|26599|354642303|1317|730
2015-12-28-15:30|30843|357376164|1317|730
2015-12-28-16:00|25235|355304469|1316|731
2015-12-28-16:30|25422|356461163|1315|732
2015-12-28-17:00|27923|358021015|1316|731
2015-12-28-17:30|26622|357827823|1315|732
2015-12-28-18:00|25395|358142647|1317|730
2015-12-28-18:30|25629|358479670|1316|731
2015-12-28-19:00|25452|360144829|1316|731
2015-12-28-19:30|26676|361355579|1316|731
2015-12-28-20:00|28152|362730954|1316|731
2015-12-28-20:30|29548|364360887|1316|731
2015-12-28-21:00|25654|362904142|1316|731
2015-12-28-21:30|25636|362363857|1316|731
2015-12-28-22:00|25748|363372287|1316|731
2015-12-28-22:30|26284|364005741|1410|637
2015-12-28-23:00|27768|365141795|1410|637
2015-12-28-23:30|26229|364833156|1416|631
3757  Bitcoin / Bitcoin Discussion / Re: Bitcoin puzzle transaction ~32 BTC prize to who solves it on: December 30, 2015, 06:00:50 PM
I made some research and I believe that the numbers are results of a polynomial (ring) function.

It also seems that someone already got into this in February 2015. Probably the guy who cashed out the first addresses.
http://pastebin.com/erN0F1ce

Quote
-673909/1307674368000*x^15 + 5004253/87178291200*x^14 - 151337/52254720*x^13 + 9320029/106444800*x^12 - 25409989753/14370048000*x^11 + 2192506957/87091200*x^10 - 19011117413/73156608*x^9 + 1200887962891/609638400*x^8 - 3585932821063/326592000*x^7 + 647416874047/14515200*x^6 - 18586394742863/143700480*x^5 + 30899291755337/119750400*x^4 - 274137631043849/825552000*x^3 + 36933161067083/151351200*x^2 - 87781079/1155*x

If you put for x the values 0 to 15, you will get exactly the first 16 numbers.

Quote
1
3
7
8
21
49
76
224
467
514
1155
2683
5216
10544
26867
51510

When you put x = 17 then you got -1514935. This is probably because the formula is not complete. There is x^16 to x^256 missing.
The callange is to find out what formula generates the -673909/1307674368000, 5004253/87178291200,... values.

Very nice finding tyz, this gives us some hope that this puzzle will still be solved during our lifetime  Cheesy

Yes the problem are those divisions like -673909/1307674368000, not sure whats the formula behind this, will have a look on it.

Sounds like overfitting to me. Its easy to find a function with x+1 terms to match x points exactly. 2 points define a line (a*x1+b*x0), 3 points define a function of leading coefficient x2, etc.
3758  Bitcoin / Bitcoin Technical Support / Re: No Block Source Avaliable - Bitcoin-QT on: December 30, 2015, 05:48:06 PM
Quote
~snipped~
Considering that the blockchain (blocks folder only) currently uses 57.4GB I hope you can do more than 50 MB per hour or it would take you > 40 days to fully sync.

I have run it for about 6 hours flat! The blocks folder (on its own) is:
13.4 GB (14,399,550,285 bytes)

and contains 223 files and 1 folder!


2GB per hour sounds better. It will slow down a bit for the last year, but it should not take longer than 2-3 days total.
3759  Economy / Scam Accusations / Re: Master-P's scammed funds summary. Post your case here if you were scammed. on: December 30, 2015, 05:38:48 PM
hllo, thanks for such an aweome thread, replied to PM as asked. You are doing very nice, but still confused is masterp agreed to pay the scammed amount ?

Its hard to say what is the truth right now, but there is an account that claims to be the real master-P, that the account was not sold, but that their machine was compromised. The wallet however seems to be safe, which makes sense considering that the funds have not moved. They backed their claims with a signed message and are -to the best of my knowledge- currently working on restoring the wallet from an invested system without risking any coins.
3760  Other / Beginners & Help / Re: How to move fund in bitcoin core desktop to online wallet, transaction not showi on: December 30, 2015, 05:30:06 PM
None of thr solutions worked for me, i did not find wallet.dat in my system, i also tried the first solution but did not see the option to get the private key

What exactly did you try and which error message did you get?
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