Finally, consider this: can two people have the same public key? Yes, see here generally: http://learncryptography.com/bitcoin-addresses/ But can two people deliberately construct the same public / private key combination, in an attempt to fool the bitcoin block chain? Of course they can. But what will happen (I think) is that the first public/private key will win, meaning, the block chain will refuse to recognize the second pair. So this is the thought experiment: two researchers, A and B, deliberately create the same public/private key. Then an assistant sends them bitcoin. The first person, be it A or B, that logs onto the bitcoin peer-to-peer network first will 'win' or receive the bitcoin sent by the assistant. First come, first served. If two people have the same private key they can both sign a message "sending" it to another address. You don't "receive" them in the sense you're thinking. There's no logging in to the network. Both people would have the ability to spend the bitcoins that were received at the address. Just as two people can have a joint bank account, both can sign a check transferring funds to another account. |
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The bitcoins aren't "sent" in the sense you're thinking. The "sender" signs a message saying he is transferring the bitcoins from X to Y address. That message goes in the blockchain that is distributed widely and anyone can view it. So you never "receive" them. If you have the private key to address Y then you can sign and broadcast a message saying you transfer those coins to address Z.
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It's just like when you get paid in cash.
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I like lubuntu, it has aptitude which is really nice but not the lol dash as you call it.
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Sure, just write down a 1, some random numbers and letters, then compute the checksum by hand and add that to the end.
What? So, if I write down "1David" (ok, not so random but your algorithm does not apparently exclude it) then you're saying the SHA256 hash of it, AC8CD3CAD235EC200B017C6B585C00915F0442BFB17DA7AD5E9D39D7F1B677BD, appended to it is the private key? You think the private key is "1DavidAC8CD3CAD235EC200B017C6B585C00915F0442BFB17DA7AD5E9D39D7F1B677BD"? I beg to differ. Oh I thought you just wanted a valid address. |
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Sure, just write down a 1, some random numbers and letters, then compute the checksum by hand and add that to the end.
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Post the PMs here and ask Theymos to verify them.
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Blockchain.info email backups can be intercepted and cracked if your email is compromised.
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Was this an online wallet, like blockchain.info? There have been phishing attempts where people have put up fake websites, say blockchaln.info and paid for google advertising to put them on the top of the list, so that people click that, think they're on the real website, and then input their password.
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...we decided to give Bitcoins a try, because it's much easier than dealing with banks, different countries regulations, etc.
...Can that transaction be cancelled somehow? Is there anything else that can be done? Is there some way of reporting the hackers?
Because you're not dealing with banks or any type of regulated currency the transaction can't be cancelled and there's nothing to do about it. Choose one or the other. |
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Yeah why don't you just run 40A 240 to a PDU?
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Not only do you still have to pass down your password from one generation to the next, but you have to pass down the information of where on the blockchain your encrypted key is too.
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Every two weeks it calculates your activity. You get one activity per post up to 14.
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Never knew that Lepirate thanks! I suppose it should be possible because we've made artificial diamonds before haven't we?
Changing elements is a lot tougher and different than changing state. |
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Purchase them with cash on localbitcoins. Credit cards are used too often by criminals.
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We are doing an article on building a Bitcoin mining rig for under $500, I'd love to hear suggestions along with recommendations of tutorials that walk through the setup.
Also do you think it makes sense to build a rig for this little or do you sacrifice too much by keeping the budget so low?
You can buy a paper shredder for $50 and put four hundred dollar bills into it. It'll come in just under $500. |
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Why would anyone sell it for less than they could make by keeping it?
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It makes less and less over its lifetime, so eventually it'll make nothing.
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Ha, no that's before electricity.
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0.0635 for the first week
About 0.45 total.
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