JohnGalt (OP)
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Who is John Galt?
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June 17, 2013, 04:12:00 AM |
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I accidentally did a sendmany twice, sending too much money to several paper wallets. I would like to undo that if possible without leaving the paper wallet private keys anywhere. Using bitcoin-qt, I could do this for each paper wallet: create a new wallet, import the private key, send the extra amount (accounting for any Tx fee), destroy the wallet.
Is there an easier way? A different client perhaps?
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dhenson
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June 17, 2013, 06:01:03 AM |
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If you performed your steps as described, you would lose the balance as your client would send the change to a different change address and you would destroy the private keys.
I would recommend not doing that ;-)
Import your keys, and send the correct amount to new wallets. You shouldn't re-use a paper wallet once it's been imported.
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JohnGalt (OP)
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Who is John Galt?
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June 17, 2013, 06:25:41 AM |
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If you performed your steps as described, you would lose the balance as your client would send the change to a different change address and you would destroy the private keys.
I would recommend not doing that ;-)
Import your keys, and send the correct amount to new wallets. You shouldn't re-use a paper wallet once it's been imported.
Each wallet has two inputs with the same amount. If I send the exact amount of an input, one of the inputs will be emptied and the other will remain, and there won't be any change, right? I would prefer to keep the current paper wallets. Here is a picture of them:  |
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Abdussamad
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June 17, 2013, 06:33:44 AM |
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Ooh shiny!
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infested999
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June 17, 2013, 06:36:49 AM |
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Are those the private keys on the outside of them? Or do you have to break them open to get access to the private keys?
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casascius
Mike Caldwell
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The Casascius 1oz 10BTC Silver Round (w/ Gold B)
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June 17, 2013, 06:42:13 AM |
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If it were me I would be figuring out hwo to best change the denomination to 20 mBTC...  |
Companies claiming they got hacked and lost your coins sounds like fraud so perfect it could be called fashionable. I never believe them. If I ever experience the misfortune of a real intrusion, I declare I have been honest about the way I have managed the keys in Casascius Coins. I maintain no ability to recover or reproduce the keys, not even under limitless duress or total intrusion. Remember that trusting strangers with your coins without any recourse is, as a matter of principle, not a best practice. Don't keep coins online. Use paper or hardware wallets instead.
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dhenson
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June 17, 2013, 06:45:57 AM |
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Each wallet has two inputs with the same amount. If I send the exact amount of an input, one of the inputs will be emptied and the other will remain, and there won't be any change, right?
I believe that is correct. But it would be simple enough to test... Import one into a fresh wallet, send one output and then check the balance on the original public address before destroying the wallet. Unless I'm missing something, that should provide adequate confirmation. |
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casascius
Mike Caldwell
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The Casascius 1oz 10BTC Silver Round (w/ Gold B)
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June 17, 2013, 07:11:15 AM |
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If it were me the easiest way would be to just use Blockchain.info. Of course I have the benefit of a decent commercial handheld barcode scanner (one even better than the yellow wasp I used to use) so that makes things a ton easier, I would have that whole stack of coins scanned in under a minute. Taking only half the value sounds like a pain in the butt, I would probably unfund them completely in a single transaction, and then redo my sendmany that I had already prepared the first time around.
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Companies claiming they got hacked and lost your coins sounds like fraud so perfect it could be called fashionable. I never believe them. If I ever experience the misfortune of a real intrusion, I declare I have been honest about the way I have managed the keys in Casascius Coins. I maintain no ability to recover or reproduce the keys, not even under limitless duress or total intrusion. Remember that trusting strangers with your coins without any recourse is, as a matter of principle, not a best practice. Don't keep coins online. Use paper or hardware wallets instead.
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cp1
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June 17, 2013, 06:16:06 PM |
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Are those bitcoin poker chips?
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Abdussamad
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June 17, 2013, 06:26:50 PM |
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Are those bitcoin poker chips?
No. Those are chocolates. |
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neurobox
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Getting too old for all this.
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June 17, 2013, 09:53:50 PM |
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No reason they couldn't be chocolate.. just keep the qr inside. The foil is totally tamper-proof.
Anyhow, when you find a technique that works, you'll want to set up script of some sort to automate it. At that point I'll concede that my knowledge of batch processing exceeds my experience with bitcoin clients by 1000:1, so I can't be much direct help there.
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JohnGalt (OP)
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Who is John Galt?
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June 18, 2013, 06:16:59 AM |
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Taking only half the value sounds like a pain in the butt, I would probably unfund them completely in a single transaction, and then redo my sendmany that I had already prepared the first time around.
That's the solution I was looking for. Thanks Mike. infested999, those are private keys. |
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infested999
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June 18, 2013, 08:31:52 AM |
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No reason they couldn't be chocolate.. just keep the qr inside. The foil is totally tamper-proof.
Anyhow, when you find a technique that works, you'll want to set up script of some sort to automate it. At that point I'll concede that my knowledge of batch processing exceeds my experience with Bitcoin clients by 1000:1, so I can't be much direct help there.
I just came up with worst business idea 2013: You can buy chocolates where the public key is on a QR code on the wrapper, then the private key is stamped into the chocolate. If the chocolate melts, you loose all the money. |
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b!z
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June 18, 2013, 09:23:07 AM |
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No reason they couldn't be chocolate.. just keep the qr inside. The foil is totally tamper-proof.
Anyhow, when you find a technique that works, you'll want to set up script of some sort to automate it. At that point I'll concede that my knowledge of batch processing exceeds my experience with Bitcoin clients by 1000:1, so I can't be much direct help there.
I just came up with worst business idea 2013: You can buy chocolates where the public key is on a QR code on the wrapper, then the private key is stamped into the chocolate. If the chocolate melts, you loose all the money. I'd buy it.  |
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infested999
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June 18, 2013, 10:22:37 AM |
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No reason they couldn't be chocolate.. just keep the qr inside. The foil is totally tamper-proof.
Anyhow, when you find a technique that works, you'll want to set up script of some sort to automate it. At that point I'll concede that my knowledge of batch processing exceeds my experience with Bitcoin clients by 1000:1, so I can't be much direct help there.
I just came up with worst business idea 2013: You can buy chocolates where the public key is on a QR code on the wrapper, then the private key is stamped into the chocolate. If the chocolate melts, you loose all the money. I'd buy it. I wouldn't ship it with UPS. Or FedEx for that matter. Or USPS |
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