Heh, that's a challenge.  Can anyone make out what it says?

Here's the raw data from a block:
 - http://blockexplorer.com/rawblock/00000000000000fb84a13a76c4594f3aae4b1173e308887e961c9953031b4811

There is no IP address recorded.

However Blockchain.info says that it believes Deepbit was the miner where that specific block came from:

 - http://blockchain.info/block-index/266324/00000000000000fb84a13a76c4594f3aae4b1173e308887e961c9953031b4811

Blockchain.info knows this only because it has a connection to Deepbit (and to most other pools and some miners).  Because Deepbit was the first node where that block was seen, Blockchain.info themselves record that node's IP address and displays it as the "relayed by".

In other words, by listening to the network, some conclusions can be made and be semi-accurate.

The same thing happens for transactions.  If your node was connected only to one node, let's say that node was Deepbit's, and Deepbit relayed your transaction, then Blockchain.info would think that Deepbit was the node where your transaction occurred.   Your IP would not be revealed anywhere as a result.



The bitcoin.org client can use tor.

Even without Tor, you can make sure your client does no listening, and only connects to a specific well connected node that isn't sharing your IP.  Because there is no guarantee that this sharing occurs, if anonymity is important, then your better bet is to use Tor.

Another thing you can do is to use a hosted (shared) EWallet, such as Instawallet, or a hybrid EWallet (Bitcoin Spinner mobile app, Electrum, or Blockchain.info/wallet ) instead of running a node yourself.  That way the IP address reported will not have any link to your IP.   There is no guarantee that an EWallet isn't logging your IP address though, so again, the best answer there as well is Tor.

To clarify that, the announcement describes the Metro account being discontinued at the end of the month:

 - http://bitcointalk.org/index.php?topic=63877.msg1122824#msg1122824

Have you any experience with this exchange?

 - http://londonbitcoinexchange.wordpress.com

Her performance at PorcFest last month:

 - http://www.youtube.com/watch?v=-xPo2R8Zl58
 - http://www.youtube.com/watch?v=aA11ODU1MJ8

Armory, which uses the blockchain from bitcoind appears to provide this:


 - https://github.com/etotheipi/BitcoinArmory/blob/master/createTxFromAddrList.py

Which can be called using a script from:

 - https://github.com/etotheipi/BitcoinArmory/blob/master/extras/sample_armory_code.py

Heh, I believe Gary Johnson might have been the first politician to have received a bitcoin (at least the first presidential candidate to have received one):

 - http://bitcointalk.org/index.php?topic=41892.msg606229#msg606229

Trying to login I get:

That's one risk you face when using a static Bitcoin address.   If your service gives a unique address per payment there is less chance of this being a problem.  But someone could repeatedly send spam-like amounts to inflict pain on the recipient.  A coin selection method that ignores amounts under a certain threshold when otherwise including them would increase the fee would neutralize that threat.

The only ones complaining about it so far are those who are getting the dust spam from their losing bets from SatoshiDICE, so that is self-inflicted pain.

I think I see a problem.  If I am doing an @reply to someone, BTCTip didn't catch it.

Here's the one that this happened on. BTCTip has not yet sent out the tweet to notify the recipient:
 - https://twitter.com/bitcoindia/status/239272879458504706

Oh ya, I forgot about that method.  There is a 1.5% fee.

 - http://en.bitcoin.it/wiki/Mtgox#UK_.28GBP.29

Well, you don't need to import the key into the wallet.  You are simply doing a one-time redeem to spend any funds on that coin.  And because the key is compromised (as it comes from an external source), I certainly would never mix it in with a wallet holding other funds.

I just assume you create a spend transaction with the output address being one that is tied to that user's account.  The Bitcoin.org client v0.7 has raw transaction support.  You could also build a transaction and use Blockchain.info's pushtx I believe.

 - https://people.xiph.org/~greg/signdemo.txt

Or use genjix's Subvertx:
 - http://bitcointalk.org/index.php?topic=50721.msg604667#msg604667

 - http://bitcoin.stackexchange.com/a/2635/153

Do you get a check from them with the unspent balance then?

There are many other prepaid cards:

Ones with no monthly charge and accept Moneypak include:

 - https://www.americanexpress.com/us/content/prepaid/american-express-prepaid-card/faqs.html
 - http://www.wuprepaid.com/


From this thread:

 - http://bitcointalk.org/index.php?topic=93152.msg1030597#msg1030597

In addition to those:

You can deposit cash into Mt. Gox's account with Barclays:
 -  http://en.bitcoin.it/wiki/Mtgox#UK_.28GBP.29

There is a site called London Bitcoin Exchange, though there is not much about them yet so if you do trade, perhaps use an escrow.
 - http://londonbitcoinexchange.wordpress.com/

You can send cash (GBP) or check to Bitcoin Nordic, by mail, to purchase bitcoins:
 - http://en.bitcoin.it/wiki/Bitcoin_Nordic

You might find a local trader (or place an buy order and see if anyone is selling):
 - http://www.LocalBitcoins.com

There are a number of methods:

 - http://en.bitcoin.it/wiki/Buying_bitcoins

Please consider adding an article on the Bitcoin wiki as well.

Already exists:

 - http://occcu.com
 - http://occcu.com/faq.php

Of course, the obvious is don't store more with the exchange than you plan to use for trading.

Bitcoins can be withdrawn with no fee, and adding back is confirmed in about an hour -- so there's no reason to store large amounts of coins at an exchange.

At one point in time Dwolla was claiming their customer funds were kept in FDIC (and/or NCUA) insured accounts.  They no longer have that assurance.  But that was one way to have fiat funds ready to put into play (as deposits to the exchanges was pretty quick) yet not have any risk while you weren't trading.   

With BitFloor, you can ACH out for free, and then deposit cash to add funds.  There that is one way to keep your balance off the exchange unless you are actively trading as well.

Just an FYI, more info on the exchanges themselves (e.g., ownership info, etc.) is here:

 - http://bitcointalk.org/index.php?topic=93386.0

The were down for nearly two weeks in 2011, a lot of people wrote them off and they came back like nothing happened.

So this second year in a row now.  If they do come back, then that possibly means they are getting a full audit, possibly by their regulators there and are turning over the data (neiither of which would they or could they reveal to anyone, of course).

But allegedly their non-reversible payments aren't so "non-reversible":

 - https://twitter.com/briankrebs/status/237939638860402688

Another thread on the topic:

 - http://bitcointalk.org/index.php?topic=101955.0

Still down ... Firday Aug 24, 22:00 UTC

Here's another thread on the topic:

 - http://bitcointalk.org/index.php?topic=102992.0

Game retailers:

 - http://en.bitcoin.it/wiki/Trade#Games_2


Online games:

 - http://en.bitcoin.it/wiki/Trade#Games


Toys and games:

 - http://en.bitcoin.it/wiki/Trade#Toys.2C_Games_and_Hobbies