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How to transfer bitcoin bought online to my desktop wallet?

Based on popular recommendations, I have started with Electrum as my Ubuntu desktop wallet and Coinbase as the way to buy bitcoin online. However, it doesn't seem like there is an easy way to transfer bitcoins from Coinbase to Electrum (not without…
Heisenberg
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Bitcoin Core cannot obtain lock

I downloaded Bitcoin Core (64 bit) and I am still waiting for it to synchronize. But just now, when I open the software, it loads from 1% to 100% and then a message appears with the inscription Cannot obtain a lock on data directory…
pearl
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Do any of the Bitcoin exchanges implement trading curbs?

After the big hack of Mt Gox we all became aware that there is nothing in place to prevent "flash crashes." Most stock, FOREX and other exchanges have features like trading curbs or other market volatility procedures to prevent such crashes - so do…
David Perry
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Bitcoin privacy metrics?

I'm looking for a numerical privacy scoring system that estimate the degree of linkage between the members of a key pool (or even just individual key pairs). Ideally, the method should be easy to understand and apply. I'm aware of "taint analysis"…
Rich Apodaca
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3 answers

GUI Miner for OS X?

I'm pretty new to the world of Bitcoin; though, a few months back I tried mining. I had everything working, but then I stopped.. Anyway, now I'd like to start up again, though I've wiped my computer and reinstalled OS X since then. I had been using…
James Litewski
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Which release fixed CVE-2010-5141 (attacker can spend any coin)

This post by Mike Hearn relates an interesting bit of history: When Bitcoin was first released, it contained two completely fatal bugs that made the entire system worthless. Fortunately, they were found and fixed before Bitcoin actually had any…
Rich Apodaca
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Does Satoshidice benefit the wider Bitcoin ecosystem?

Aside from the entertainment benefit players get from the service, does it in any way help the Bitcoin ecosystem to have a large churn of small transactions?
jl6
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3 answers

Historical number of full nodes in Bitcoin

Is there anybody keeping historical data regarding the number of full nodes on the Bitcoin network? There is : https://getaddr.bitnodes.io/dashboard/?days=90 but it only shows data up to 90 days. Additional sources also here…
k kurokawa
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Testing blockchain forks

I want to test if a service can manage a blockchain fork. However there is no way to get bitcoind to create test forks under the regtest mode. I've tried modifying it to generate blocks with arbitrary prevblock hashes but it is not easy due to the…
Matthew Mitchell
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Is there a list of mining pools' Bitcoin nodes IPs?

Is there a list containing the IPs of Bitcoin nodes owned by various mining pools?
ThePiachu
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Is there any Bitcoin Exchange that doesn't have fees for euro SEPA deposits/withdrawals?

Since Tradehill disappeared, which was really sad, I cannot find any Bitcoin exchange that let's me deposit and withdraw euros without fees, while they do for US dollars. Both Mt.Gox and Intersango have a 10-20 PLN fee that their bank charge. While…
Steven Roose
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Is there a way to change the wallet.dat location without changing the entire data directory?

I know that Bitcoin supports the -datadir command line option which specifies that the wallet.dat and blockchain should be stored in a custom location rather than %appdata%\roaming\bitcoin but is there a way to specify a wallet location without also…
David Perry
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How popular are alternative clients?

Is there any data available on how many people use an alternative client in contrast to the Satoshi client? Alternatively, is there any data on how many times such clients have been downloaded?
ThePiachu
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Does Coinbase have the ability to create a "Business" Account?

Wanted to see if anyone here knew if you are able to work with Coinbase to create a "Business/Corporate" level Accounts? Meaning that when signing up and linking a bank account to your Coinbase account you could choose to use your Business bank…
parchambeau
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How does bitcoin's price volatility compare to commodities/stocks with comparable market capitalizations?

Bitcoin's long term (after 21 million units have been created) market cap is about $102 million. Price volatility of individual commodities/stocks is inversely correlated with their market cap, so price volatility is to be expected with bitcoin,…
Amin
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