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5921  Other / Meta / Re: Everyone calling for Quickseller to end war on tsp; QS ignores thread for weeks on: August 18, 2015, 06:51:37 PM
-snip-
Regarding tspacepilot's ban: he was (most likely) banned for posting many off topic posts,
-snip-

I talked to them and yes they have been banned for "offtopic posting". Nothing else. 5 days is a typical duration if BadBear is under the impression that something like this will not be needed again. I dont have a quote ready.

5922  Other / Meta / Re: Flag a hacked account on: August 18, 2015, 05:48:38 PM
Message sent to BadBear,

For everyone else, here is a signed message for you all to check while they look into this.

Address: 1GTdTYN1KdeFNcp3mgX2RffnZH5A5mTem

Message: My account "bigjme" has been hacked/lost. Please reset the email to () or delete the account. The current date is August 18th, 2015.

Signature: H0JGgw7dLNmIk67fL9I314/B9NG8U+Oh8avLQqtIindXHtqx+UFpcV0lT7DLSzGSAq3g3FMDxISxPE1I1AQBzpw=


Again sorry to everyone effected by this

Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
My account "bigjme" has been hacked/lost. Please reset the email to () or delete the account. The current date is August 18th, 2015.
-----BEGIN SIGNATURE-----
1GTdTYN1KdeFNcp3mgX2RffnZH5A5mTem
H0JGgw7dLNmIk67fL9I314/B9NG8U+Oh8avLQqtIindXHtqx+UFpcV0lT7DLSzGSAq3g3FMDxISxPE1I1AQBzpw=
-----END BITCOIN SIGNED MESSAGE-----

Different format. Signature checks out, but its probably best if you ask for an mail address that actually exists.[1] Accounts do not get deleted.

[1] In the light of the remark by guitarplinker below I removed this part.
5923  Other / Meta / Re: Account buying[help] on: August 18, 2015, 05:41:23 PM
Imagine that I wat to buy an account, someone makes a signed message, to prove it is his account, how do i prove if he sells, thatbI bought it? Because the address he signed with is still his.

first at all, buy an account is a bad idea, and i will nto recommend it, but you are free to do watever you want ofc Smiley

second, is so simply, just build a new message and sign it, so you can probe that the owner of that account have been changed.
Why buy account is bad idea ? I think in this forum allowed to buy or selling account. Tongue


It is allowed, but somebody who has proven account ownership to the buyer today, he may be able to prove account ownership tomorrow to another buyer.
It's just another deal some play nice and some can scam.

Lets go through this again with an example.

Alice (A) wants to sell the account Alice_123 to Bob (B). In order to proof ownership Alice can sign a message and present it to B. B verifies that the signed message is valid and is from an old and unedited post. Now they agree on a price as part of the deal B gets a signed message:


This is Alice from bitcointalk.org and today is 2015.08.18.
Today I sold my account Alice_123 with the ID: 123456 to Bob
for 0.17 BTC. TX ID: <ID here>


or something similar. Bob changes the mail address and the password and now owns the account. Should the account ever be contested, Bob can proof with the signature that Alice is no longer the proper owner of the account and with one of the addresses from TX ID (or an address that is directly part of the signed message) can sign a message themself. Bob does not need to make this public unless the account is contested.
5924  Bitcoin / Bitcoin Discussion / Re: CoinWallet says Bitcoin stress test in September will create 30-day backlog on: August 18, 2015, 05:31:05 PM
Woohoooo! Hoooray for a new backlog! What are they planning to do? To prove a point that we need to have bigger blocks because of an intended stress-test? How about the normal days wherein transactions don't fill up the 1mb limit?

A planned heavy transaction numbers is different from the natural-occurring transactions per day on the network, so I don't really see what's the point of this stress-testing aside from pushing XT fork to happen.

It might be profitable for miners to force higher fees.
5925  Other / Meta / Re: Flag a hacked account on: August 18, 2015, 05:18:25 PM
So you did not ask for a loan today?

Loan amount required: 0.12
Repay amount: 0.13
Repay date: 24/08/2015
110% - 150% Collateral: this account
Bitcoin address: 1M5a1Uw6FqD43UyxN8TPJau6SCzKttfoZL

and orenz is not an alt of yours?

Done
https://twitter.com/vino11adrian
BTC addres: 1M5a1Uw6FqD43UyxN8TPJau6SCzKttfoZL

thanks

5926  Bitcoin / Development & Technical Discussion / Re: why is the transaction that creates new bitcoin called the coinbase transaction? on: August 17, 2015, 05:43:32 PM
I dont think this is a very technical question maybe we need a history board....

I did a quick seach and the follow post from 2010 is the oldest that includes coinbase and transaction.

I market it in bold and from the looks of it, its from a log file. Which would indicate that its either directly from satoshi or one of the earliest developers.

An example of how bitcoin works on a bit-level:  Ok, I'll give it a shot.

Here's what the current best-block (according to my bitcoin client) looks like, dumped in a geek-readable format:

BLOCK 68fa61ac1f55a5787dfa0c75bc83e67376ae8356e6887a2ab74cdb0900000000
Next block: 0000000000000000000000000000000000000000000000000000000000000000
Time: Mon Jul  5 15:51:22 2010
Previous block: c18adb50289393b5a995b3506f039ac75e8de79f511515448811510200000000
3 transactions:
1 tx in, 1 out
['TxIn: COIN GENERATED coinbase:0442310d1c029c00']
['TxOut: value: 50.00 pubkey: 17sdrb1X7qpjPMJortqaNwWtBbtouSoJn2 Script: 65:046d...bb9c CHECKSIG']
1 tx in, 1 out
['TxIn: prev(580a...e82e:0) pubkey: (None) sig: 71:3044...db01']
['TxOut: value: 50.00 pubkey: 1FeFgJRvCYUTCBj1u696eL23xpAdNB4B8p Script: DUP HASH160 20:a09d...6d81 EQUALVERIFY CHECKSIG']
3 tx in, 1 out
['TxIn: prev(c0a0...6bc3:0) pubkey: (None) sig: 73:3046...0f01', 'TxIn: prev(f909...2493:0) pubkey: (None) sig: 73:3046...1601', 'TxIn: prev(bc0a...fe64:0) pubkey: (None) sig: 72:3045...6201']
['TxOut: value: 150.00 pubkey: 1BHxjkqPmtNdmJxLZgneijvGszRxM9hPkz Script: 65:04ee...1d02 CHECKSIG']

So:  that big long string of hex at the top is the block header's hash value.  Note that it ends with 8 zeroes; that's the proof-of-work  (my utility for dumping blocks doesn't bother dumping the Nonce values).

What's hashed in the block header?  The Nonce.  The block's generation time.  The previous block's hash.  And a hash of all the transactions in the block. (and probably some stuff I'm forgetting).

This block has three transactions in it.  The first is the 50.00 (which is really 5,000,000,000 of the smallest possible units) reward for finding/creating the block.  It can only be spent by whoever has the private key that matches the public key in the TxOut  (17sdrb1X7qpjPMJortqaNwWtBbtouSoJn2 -- you can think of public keys and bitcoin addresses as equivalent), which will be whoever generated the block.

The second is a payment of 50.0 from.... somebody... to... somebody.   How does Bitcoin know that transaction is valid?  Well, it:
 + Looks up the previous transaction.  That's the TxIn: prev(580a...e82e:0)  stuff-- fetch TxOut zero (which will be a coin generated txn) from previous transaction 580a....
 + EVALUATE(TxIn.pubkey + previous transaction TxOut.pubkey) and make sure it evaluates to true.  This is where the cryptography happens; the receiver uses the private key known only to them and provides a correct digital signature.

The third is a payment of 150.0 (three 50.0-value in, one 150.0-value out).

Clear as mud?



5927  Other / Off-topic / Re: How to encrypt a puzzle on: August 17, 2015, 05:38:32 PM
I hashed (sha256 using the above site) a number between 1 and 10, this is the hash 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
which number was it?
The number was 1. You can't use a raw hash for anything that can be brute-forced. The correct way to do it is to encrypt the answer using a well-known symmetric cipher (such as AES) and a strong (random) key, and publish the encrypted answer and a hash of the encryption key (and when the answer is to be revealed, publish the key itself).

Yes, thats why I said above "depending on the complexity of the problem". Its still possible for things with a low complexity e.g. numbers between 1 and 10 if I dont tell you the format of the solution.

E.g. I could have hashed:

The solution is the number "one"; today is 2015.08.17

This would require me to reveal the solution at a certain time and everyone can use the hash to check that I did not cheat.

I had the impression that OP wanted to enable users to check themselfes whether a result is correct or not. In this case encryption would not be a possible solution.
5928  Bitcoin / Bitcoin Discussion / Re: Snowden Says Bitcoin is Flawed on: August 17, 2015, 05:17:18 PM
I would have expected him to use some of his copious spare time to actually research the topic if he was giving an ietf interview.
'Course the interviewer may have played loose with the quotes. I couldn't find audio or video anywhere....

Use the source:

transcript: https://gist.github.com/mnot/382aca0b23b6bf082116#bitcoin
video: https://www.youtube.com/watch?v=0NvsUXBCeVA

Snowden is basically avoiding an answer on the question, which was
Quote
...but the metadata and the correlation...but the big thing might be for money.

So what about Bitcoin or things like Bitcoin that says at least the market transactions get anonymized when...
Edward Snowden: So, the Bitcoin thing is – I mean this is – nobody really likes to talk about Bitcoin anymore.

If you read the whole transcript or watch the whole video up to this point you will see that Snowdens main points are not money, but larger in scale. If you have an Internet where the is no connection to your person you dont have to worry about a specific service like bitcoin beeing anonymous.

If you take the specific point that you can pay for things without allowing a correlation to your person "bitcoin or things like bitcoin" already allow that, regardless of the correlation that your IP address might allow.
5929  Economy / Scam Accusations / Re: Scam Report on Jakez (USER #106010) on: August 16, 2015, 06:02:31 PM
I received my BTC while the thread was being made. I've reported the post but it hasn't been removed/hidden yet.

My apologies, Jakez.

I dont think anyone left a rating. Just change the title it will be moved to archival enventually.
5930  Bitcoin / Bitcoin Technical Support / Re: my BitcoinCore wallet doesn't start on: August 16, 2015, 03:23:24 PM
I kept using some faucets this week... I uninstalled BTC Core and Reinstalled it over and over, but always get the same message... Is there at least a pssibility to get my addresses back so i can use them with any other wallet?


Only if you have the wallet.dat.

If so you can

#1 use it on a friends machine (if possible) to export your private keys
#2 use pywallet to export the private keys yourself
#3 hire someone to do either #1 or #2

Option #3 comes with the risk that you are no longer the only person that knows the private key(s) for the addresses. It would thus be smart to hire someone to make a last final transaction that moves all your funds to an address from your new wallet.
5931  Bitcoin / Bitcoin Technical Support / Re: max 8 connections to Bitcoin Network on: August 16, 2015, 03:18:34 PM
If you use DHCP make sure the port 8333 is forwarded to the correct machine on the router/modem/firewall box.
5932  Bitcoin / Wallet software / Re: Request for all wallet developers! on: August 16, 2015, 03:11:36 PM
mSIGNA does this, in fact it needs it to run.
Electrum allows you to select a specific server. You can probably figure out which electrum servers run XT and which do not.
5933  Other / Beginners & Help / Re: Generate Privkey on: August 16, 2015, 03:09:06 PM
Hello ..... How bitcoin core makes a Privkey?

As unholycactus said, a private key is just a number within a certain range.

the privkeys are prepared in bitcoin core and it chooses one of them ?

Bitcoin core pregenerates 100 private keys by default in order to make backups hold longer (among other reasons). If you ask the interface to show you a new wallet it will use one of the pregenerated ones from a list and make sure that it refills the list the next time the wallet is unlocked.

or it has a mechanism for making the privkey ?
If there is a sequence order to make Privkeys what are these orders and mechanisms ?

Yes.

Step #1 Select a number between 0 and FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFE BAAE DCE6 AF48 A03B BFD2 5E8C D036 4140 (in hexadecimal system)
Done.

This number should be random though. Many private keys that are not generated random, e.g. the first few million should be considered unsafe.
5934  Other / Meta / Re: Is this a Forum warning? on: August 16, 2015, 02:56:38 PM
Received a PM from a user and this was the at the top of the MSG is this part of the forum security or something else? Sorry if this has been answered i have been out of the loop for quite a while.  Thanks

!!! WARNING: This user is a newbie. If you are expecting a message from a more veteran member, then this is an imposter !!!


For sure it is a warning message. It is clearly told that the message come to you is from an impostor. He is a newbie and for some reason that only he/she know he had hidden his identity to you. Maybe you wait something from a veteran member (some offer or something else) and the impostor had hide their identity to deceive you.

It doesn't state that they're an imposter at all. It's just a generic message that is applied to all newbies. Could be a completely innocent message from a newb for all we know but the message will be applied any way.
I won't give details or a name but it was "Sales" related and for me this is definitely useful. So simple but extremely Effective. Thanks hilariousandco

If it was an impersonation attempt, you should report it.
Might just prevent somebody else falling into a trap. Smiley
Your post made me take a second look at the PM.   That particular user doesn't have a name that matches any other users. I think he was just a person seeing if i would take the bait or just a newbie that doesn't know any better.  Can't really report his PM he didn't do anything wrong Directly.

If there is nothing wrong, no reason to write a report to mods - which is not to be used for scams anyway.

Its just to make it very clear that you are dealing with a newbie, if you already know that its fine.
5935  Other / Beginners & Help / Re: if my account has positive trust is it value pushed up? on: August 16, 2015, 02:43:18 PM
as mentioned above, if it is surely its a recipe for disaster with scammers and such :/

Why? It makes it more costly to buy an account with positive trust. This makes the amount needed to ROI on the scam higher. Which makes the scam more difficult as people tend to be more carefull the higher the amount traded is. If the account is not bought, it would be considered a long con, which takes time and energy only a few scammers can seem to invest.
5936  Other / Beginners & Help / Re: [EDU]How to protect your wallet on: August 16, 2015, 02:33:25 PM
-snip-
You are welcome , both of you .
Also I just Updated the topic with more informations and I hope you found them useful aswell , I hope members still give more suggestions about things to add and if there is anything wrong on what I said feel free to correct it .

Always make sure that your Anti-Virus/Malware is updated. is listed twice Wink
5937  Other / Meta / Re: Stake your Bitcoin address here on: August 16, 2015, 07:21:16 AM
-----BEGIN BITCOIN SIGNED MESSAGE-----
Im Scream from bitcointalk
-----BEGIN SIGNATURE-----
181ha3UHM1PZj9Py4aeULMjJD3L3tqdHK
H2CqCmvraMZOfx7s1KZfx0x6pZlzhFciln14ynytL1cb33UOXwUBUkHLv9DdnsZ/Pb4De/ASkcZJLfenIJ1saj0=
-----END BITCOIN SIGNED MESSAGE-----

please Quote Smiley
Failed.

Quote
Failure: ('vmB', 'Bad address. Signing: 1GnbNiSi7t4NaAXamV6XkRZ1ED2qrcYftC, received: 181ha3UHM1PZj9Py4aeULMjJD3L3tqdHK')

but i try with 1GnbN.. verified

can you verif this
Code:
Im Scream from bitcointalk 
181ha3UHM1PZj9Py4aeULMjJD3L3tqdHK
H91ZZbP1e6CpW1/bFlFNpvvkMlSpOUJkkYEB1vju46KTI2UwHyL2hNsXoPXMTW0UN5VxtRO4tRMrnVhJkjkpex4=

STOP USING COINIG.COM. Its bugged.

5938  Other / Meta / Re: Question regarding BBcode ? on: August 16, 2015, 07:01:59 AM
link with iurl=#name, mark location to link with anchor=name (no #here)

example link:

Code:
[li][iurl=#multibit0518]MultiBit v 0.5.18[/iurl][/li]

example destination:

Code:
[size=16pt][u][b][anchor=multibit0518]MultiBit v 0.5.18[/b][/u][/size]

5939  Other / Off-topic / Re: How to encrypt a puzzle on: August 15, 2015, 04:54:37 PM
Hi,

Let´s say I have a puzzle. I want to publish the solution online at the same time I present the puzzle to the public, but the solution should be encrypted.

How can I do this is practical terms? I want to prove that the results of the puzzle were uploaded and untouched, only protected by a key. Therefore impossible to manipulate.

The key would be given out to the public in the future to prove the solution.

Thanks

Hash the solution if possible and provide the hash. It allows users to check whether their solution is correct. It does allow for a brute force attack on the hash, but depending on the complexity of the solution that should be no problem.

Yeah, how does one do such thing?

E.g. here -> http://www.xorbin.com/tools/sha256-hash-calculator

Enter your solution as "data", click Calculate... and publish the hash.

E.g.:
I hashed (sha256 using the above site) a number between 1 and 10, this is the hash 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
which number was it?
5940  Bitcoin / Bitcoin Technical Support / Re: Bitcoin Core 0.11 on a Mac - differences from Windows on: August 15, 2015, 04:51:51 PM
Try under the "Help" menu...I didn't check on v0.11.0 but that is where it has been on earlier versions.

That's the thing though, there is no menubar on the Mac GUI, just the send/recieve/transactions/overview tabs. I think I have to use the OS X console.

Im not entirely sure what its called, but yes the top bar that is on windows and most linux system directly attached to each of the windows is at a different place for MacOS and some versions of Ubuntu.

MacOS:



Its at the top of the screen if bitcoin core is active.



Sorry for the potato quality, I have no Mac and problems to get an install image from a safe source for it to run on a VM.
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