Bitcoin Forum
April 01, 2015, 08:02:04 AM *
News: Latest stable version of Bitcoin Core: 0.10.0 [Torrent]
 
  Home Help Search Donate Login Register  
  Show Posts
Pages: « 1 ... 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 [61] 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 ... 454 »
1201  Bitcoin / Technical Support / Re: Received transaction not confirming - 0.25btc bounty for help on: April 02, 2013, 02:38:45 AM
I've done a couple full restarts and it still shows in my Bitcoin-Qt client as Unconfirmed and existing. But does not show anywhere else.

Ok, then someone is probably re-connecting to you and re-sending it [edit: Or you are connecting to a peer that is relaying it to you.]

You can prevent this by changing your configuration and removing the ability to accept incoming connections.
1202  Other / Beginners & Help / Re: wallet.dat appears to be corrupt - MAC OS 10.8.3 on: April 02, 2013, 02:29:48 AM
Can anyone help me please?

Do you have any backup copies of your wallet.dat?   Any copy made within the last 100 transactions would have all the private keys necessary to recover all your funds.
1203  Other / Beginners & Help / Re: Moneygram To OKPAY i need some help guys on: April 02, 2013, 02:17:01 AM
I've been trying to send a Moneygram to Okpay but i don't know which website i should use safely and cheapest because the one i saw was like 50 bucks just for 500 bucks.  I need some help asap on the cheapest safest exchange site you guys Moneygram to OKPAY through.  Thanks.

The factors that matter for a buying decision include:

 - Where are you located (country)?
 - How much are you looking to buy?  [You mentioned about $500.]
 - What payment methods do you have available?
 - How soon do you need access to the proceeds?
 - Is privacy important?

If you are looking to buy bitcoins, then OKPay is just one method.  If you instead are looking to get cash to OKPay, you can do that by first buying bitcoins and then cashing out at an exchange that supports OKPay as a payout method.

A fairly comprehensive list of options is compiled here:
 - http://en.bitcoin.it/wiki/Buying_bitcoins
1204  Bitcoin / Meetups / Re: Meet in Murrieta on: April 02, 2013, 02:10:09 AM
I live right up the street from the White Lime at the corner of Murrieta Hot Springs Road and Margarita Road, so if anyone ever wants to hang out there, hit this thread and I'll probably show up too.

Do they have Wi-Fi?

If not, does Spelly's (the only restaurant/bar in Muriette I know off hand) have Wi-Fi?
1205  Other / Beginners & Help / Re: Bitinstant failed a transfer from dwolla to mtgox, is money gone? on: April 02, 2013, 01:55:52 AM
What's the process to resolve this issue?

They probably aren't looking for new threads reporting a problem.  Instead, how about reporting your issue in their thread -- that's probably the quickest to resolution:

Official BitInstant Support Thread (Active Customer Support)
 - http://bitcointalk.org/index.php?topic=128314.0
1206  Bitcoin / Technical Support / Re: Received transaction not confirming - 0.25btc bounty for help on: April 02, 2013, 01:52:56 AM
Is your client directly connected to the sender?
That may explain why you see it whereas it doesn't broadcast.

I'm wondering if that is starting happen for person-to-person transactions on -OTC.  For example, through IRC without cloaking someone would see your IP address, connect to you and send you a bogus valid transaction (but them make it bogus by broadcasting at the same a double spend to the rest of the network).   You see the transaction, send your money (e.g., Dwolla or whatever) and then that transaction never confirms.

If it definitely doesn't get included in a block you (and the sender) might want to delete the transaction from your wallet with pywallet

If it is an incoming transaction, then simply shutting down and restarting the app will cause it to disappear from the memory pool.
1207  Other / Beginners & Help / Re: BTC Vault - Secure Bitcoin Live-CD on: April 02, 2013, 01:40:37 AM
BTC Vault does not include a local copy of blockchain.info (as this side requires a server) but only a link to it.

Ah, I was remembering some method that their HTML page with javascript allowed offline wallet access. 

I guess the script to decrypt a wallet might work instead to provide offline access to a blockchain.info AES-encrypted wallet. Perhaps that would make a useful addition to a future release?
 - https://gist.github.com/fcicq/3368495
1208  Bitcoin / Bitcoin Discussion / Re: Transaction with ZERO confirmations after over 2 HOURS on: April 02, 2013, 01:15:49 AM
I don't think the transaction I am referring to is listed there. I had an incoming and outgoing transaction of the same amount (2.44) in that wallet yesterday, but this is a third and separate one. Here is all the info my wallet tells me about this specific transaction:

Status: 0/unconfirmed
Date: 4/1/2013 14:22
From: unknown
To: 15s17qYWvj9vTJrjKnywGPiduM7NvbhNx7 (own address)
Credit: 2.439 BTC
Net amount: +2.439 BTC
Transaction ID: 2176854c0ed2e2a8e6c2f4aeb429e4548452ba59088cc63ff36634cdeae062a4

It looks as though blockchain doesn't see that transaction ID at all.... Thanks for your help so far!

OK, so this is an incoming transaction to you?

If so, the the party that sent it needs to re-broadcast it as your client knows about it but the rest of the network does not.    

To clear this, simply close your client and re-launch.  The memory pool will not have this transaction in it.

(The only exception there is if someone was cheating you, that transaction still existing in your memory pool might be evidence and shutting down your client would cause any trace of it to disappear.)
1209  Economy / Service Discussion / Re: Blockchain.info transaction reversed. Bitcoin lost on: April 02, 2013, 01:08:10 AM
I still have encrypted backups of the old wallet. Can I import these elsewhere to regain access?

Well, if you are sure you know the password you can try a script to decrypt it:
 - https://gist.github.com/fcicq/3368495

Additionally, while Blockchain.info might not be re-broadcasting the transaction, if it is valid anyone else with a copy of it can re-broadcast it. 

I posted a question inquiring if anyone has a copy of it:
 - http://bitcoin.stackexchange.com/questions/8946
1210  Other / Beginners & Help / Re: What happens to double spend transaction? on: April 02, 2013, 12:41:28 AM
Is the first transaction picked up and the second dropped? or are both dropped? or are the btc lost for ever? Thanks!

The context is important here.

Most mining occurs using the Bitcoin-Qt/bitcoind client which will reject any double spend attempts.   So it is the first transaction to reach the miner is the one that gets included in a block.

So how a "race attack" double spend works is if the attacker knows your IP address and you take incoming connections, the attacker has one node shoot a spend transaction to you.  Then at the very same time the attacker has another node shoot another spend transaction to the rest of the network.  The attacker's aim is to have you see the transaction (0/unconfirmed), then you hand over the cash or whatever reason the coins were sent, and then only later when the mined block arrives would you realize that the funds were double spent.   There are protections against that (don't allow incoming transactions, for outgoing you have an explicit connection to well-connected nodes.  Additionally, even if you do accept incoming, you can check the rest of the network (e.g.,blockchain.info being one source) before handing over any value to see if any double spend transactions were broadcast.

That's the typical race attack.  There's also the Finney attack, the 51% attack, and others.
 - http://en.bitcoin.it/wiki/Double-spending

What is the context in which you are asking?
1211  Economy / Service Discussion / Re: Blockchain.info transaction reversed. Bitcoin lost on: April 02, 2013, 12:29:13 AM
Problem now is I have no access to the old account and still have no idea why.

Is it possible you were trying to login with the wrong wallet ID?  Did you assign an alias to it?   If not, did you have an e-mail or SMS assigned to it which might give you the wallet identifier?  
 - https://blockchain.info/wallet/forgot-identifier

I log into my new account and the balance is zero... WTF? I thought transfers could not be reversed?

Confirmed transactions cannot be reversed.  If the transaction was being ignored (or not being relayed) and never made it into a block, eventually the rest of the network will forget about it and the original client will need to re-broadcast it.    Blockchain.info is simply saying it no longer broadcasts it.

why would blockchain show a full balance for so many days in the new address then revert it?

Blockchain.info/wallet includes in your balance any transactions that have not yet confirmed.

Is it possible that the transaction from the "lost" wallet itself too had not confirmed?   That might happen if the party that sent those funds to you had double spent against you.  If you know the bitcoin address(es) in that "lost wallet", check blockchain.info to see if that address(es) till show the funds.  If not, then you have a different problem than not being able to login to the "lost" wallet.

[Edit: In the worst case scenario, blockchain.info (or someone else) might have an archive of the transactions.   If your transaction is valid and just needed to be rebroadcast, anyone can re-broadcast it.  If it instead simply didn't get relayed for whatever reason, and nobody has a copy of it, then you're out of luck.]
1212  Other / Beginners & Help / Re: How do you turn BitCoin profit into more Bitcoins without cashing out? on: April 01, 2013, 11:39:44 PM
Let's say I invest $1,000 into BitCoin. That $1,000 turns into $2,000. I then want to take the $1,000 and buy more Bitcoin. Is there any way of doing this without withdrawing, paying fees, waiting, re-investing, paying fees, and waiting?

You are describing the desire to profit from timing the bitcoin market.    I take it you believe you can know when to sell, then using the proceeds of that buy back at a later time at a lower value.  [Edit: Oops, I missed the last part of your question, which said "in a rising market".  My suggestion is assuming you are thinking there's a declining market.]

I tried that and am still waiting for $20 to return so I can buy those coins back.  Same for more at $40, then $75, etc.

However, if you want to put your money where your mouth is, there are methods to use bitcoins to short bitcoins.

What you can do is buy BTC/USD PUT options (or write BTC/USD CALL options) on MPEX.  Or sell BTC/USD futures contracts on ICBIT.se for example.   With ICBIT how that works is you sell a contract (currently above spot price, e.g., $115) and then buy it back at any time before settlement (e.g., June 14th, 2013 for BUU3 contract).   The risk is that you buy it back at a higher price, in which you get back less than you paid. If it drops in value, you get back more than you paid.

[Edit: If instead you are thinking the market will be rising, then you can buy CALL options or sell PUT options on MPEX.  You could also buy BTC/USD futures contracts on ICBIT.  You'll be overpaying there, as the price is in contango (above spot).]

There will be more methods to short coming -- as Coinsetter.com, Kraken.com and others launch.
1213  Other / Beginners & Help / Re: Is it possible to send bitcoin at a specific date? on: April 01, 2013, 11:38:07 PM
I mean that if I want to send 1BTC tomorrow 12pm for someone, but I will have no opportunity to get to my eWallet, than is it possible to schedule the transaction?

This has been asked of EWallet providers but the feature has not been offered by any yet.   You could probably contract with an escrow provider at a low fee to do this.

The bitcoin protocol has an nLockTime which would presumably allow this however no clients currently support it.
1214  Other / Beginners & Help / Re: Where's the cheapest place to buy bitcoins in the UK on: April 01, 2013, 11:16:33 PM
Bitbargain.co.uk's has a few methods:
 - https://bitbargain.co.uk

Bitcoin Fridge re-opens on April 6th:
 - http://www.BitcoinFridge.co.uk

Transferwise to BITSTAMP seems the be the avenue many in the UK are taking:
 - http://www.reddit.com/r/BitcoinUK/comments/1b8rug
1215  Economy / Currency exchange / Re: BTC for GBP - UK Faster Payments Transfer on: April 01, 2013, 11:13:53 PM
WANTED - BTC for GBP - UK Faster Payments Transfer

Does bitbargain.co.uk's "instant transfer" bank method mean users doing a Faster Payments transaction?
 - https://bitbargain.co.uk

When Bitcoin Fridge re-opens on April 6th, they might do this as well, not sure:
 - http://www.BitcoinFridge.co.uk

Transferwise to BITSTAMP seems the be the avenue many in the UK are taking:
 - http://www.reddit.com/r/BitcoinUK/comments/1b8rug
1216  Other / Beginners & Help / Re: People from UK: Where do you buy your Bitcoins? on: April 01, 2013, 11:13:23 PM
Bitbargain is about the last one standing:
 - https://bitbargain.co.uk

Also, Bitcoin Fridge will be re-opening on April 6th:
 - http://www.BitcoinFridge.co.uk

Transferwise to BITSTAMP seems the be the avenue many in the UK are taking:
 - http://www.reddit.com/r/BitcoinUK/comments/1b8rug
1217  Bitcoin / Bitcoin Discussion / Re: Bitcoin Network Deficit? on: April 01, 2013, 10:59:52 PM
and that the miners are making money off of the rewards and the appreciation of their already mined stash...but the graph looks like the deficit is increasing and accelerating

Bitcoin obviously will need to gain further traction as a payment network for transaction fees to start reaching the level necessary to support a level of mining capacity sufficient to protect the network.  Fortunately we have a few decades or so more where the block reward subsidy alone should be more than adequate to attract a sufficient level of mining capacity.  If bitcoin doesn't gain traction as a payment network decades down the road, then the network will be at risk of 51% attack [i.e., possibly economically viable to perform if not that much equipment is needed].  If that risk grows then those with wealth in bitcoin might kick in to subsidize the network to attain the protection necessary.

But the amount of fee revenue today while Bitcoin is attempting to gain traction (and thus fees aren't even being required for most transactions) should probably not be extrapolated years or decades out to try to make any conclusions.
1218  Bitcoin / Bitcoin Discussion / Re: Transaction with ZERO confirmations after over 2 HOURS on: April 01, 2013, 10:50:09 PM
Just curious, where do you see 150 confirmations? My wallet says 0/6. Thanks!

You didn't post a transaction ID.    Without that, all that can be suggested is that there was a transaction in which 2.44 BTC has been received to that address and then that amount was spent to 1FyySthyrzTbqqqjQL6QczwncHweMzX5NR (for 2.4395 BTC).  Both of those have confirmed.

 - https://blockchain.info/address/15s17qYWvj9vTJrjKnywGPiduM7NvbhNx7

If your client isn't showing that as confirmed, then your client probably hasn't reached "sync" yet. 

Now if you have some other transaction for this address then there's varying reasons why the network doesn't know about them but that's probably not what you are describing.
1219  Other / Beginners & Help / Re: I still dont understand the concept of keeping your coins? on: April 01, 2013, 10:41:03 PM
Ok cool, i eventually found my wallet.dat file on the mac Smiley

So just to test my understanding, when I am finished with my bitcoin client for the day I could save a copy of the wallet.dat file, delete the copy that is in the folder. At this point if i lost my laptop I am safe?  assuming I dont lose my laptop i can load place the saved wallet.dat file back in the correct folder and it will be good to go?

Unless you use an encrypted filesystem, there are traces of the wallet.dat left on the hard drive.  There are tools available to scan a hard drive looking for private keys. 

Instead you want to use the passphrase encryption feature available in the Bitcoin-Qt client to protect your wallet.dat so you don't need to worry about losing your bitcoins if you happen to lose your laptop.   Either way, you do want to keep a backup (or preferably set of backups) of the wallet.dat in case you lose access to the laptop or the data stored on it.
1220  Other / Beginners & Help / Re: Simple wallet backup on: April 01, 2013, 10:37:03 PM
And the Encrypt option just makes a password right?

That encrypts the private keys stored in the wallet.dat.

If a wallet is encrypted prior to use, then no keys will exist on the filesystem without first having been encrypted.   If encryption is performed on an existing wallet, you might want to spend the funds to a new address in the wallet to ensure all funds are held for addresses protected with passphrase encryption.
Pages: « 1 ... 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 [61] 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 ... 454 »
Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!