Topic: Redeeming a Casascius Bitcoin (Read 94 times)
If you do not want to use any of the apps or wallets that will import a "mini key", can't you just SHA256 the mini private key to get the full private key (convert to WIF if need be) that you can import into any wallet type?
If this is the physical bitcoin OP is talking about here as well, then the address is 1Age5hVJ and it still holds the 1 whole bitcoin in it without being touched. Meaning it still is worth almost $100,000.
Yeah good catch. Lovely coin isn't it? I am not into collectibles to be honest, but I like it.
It seems that the coin is intact, so there shouldn't be a problem selling it. I would try a bit more to sell it, perhaps posting in other places as well. Redeeming would be my last option.
What makes me kinda sceptical though is this guy here: https://bitcointalk.org/index.php?topic=5524978.0; who seems to have a similar problem. Too much coincidence? or older forum members have seen things like this before?
Well that sucks, so i got a worthless Bitcoin, nice very nice :/
Worthless?? If you didn't try to redeem it and found out that's already redeemed, then it's not worthless.If you removed the private key's protection, then you should redeem it, because it won't be valuable as a collectible if the hologram is ripped.
Well that sucks, so i got a worthless Bitcoin, nice very nice :/
Worthless?? If you didn't try to redeem it and found out that's already redeemed, then it's not worthless.
If you removed the private key's protection, then you should redeem it, because it won't be valuable as a collectible if the hologram is ripped.
Well that sucks, so i got a worthless Bitcoin, nice very nice :/
Is that the coin you were trying to sell (according to your post history)? Can you share more details, starting with: what makes you think it's worthless and how did you get the coin?
Well that sucks, so i got a worthless Bitcoin, nice very nice :/
To add to pooya87's reply: considering the value of those coins, you should keep the private key offline.
This isn't an exact step by step solution for mini private keys, but it should be enough to get you started:
This isn't an exact step by step solution for mini private keys, but it should be enough to get you started:
Online:
Install Electrum on your PC.
Import your address to create a watch-only wallet.
Preview the transaction, Copy the unsigned transaction. Put it on a USB stick.
Offline and running without hard drive storage:
Get a Linux LIVE DVD. Use Knoppix or Tails for instance, or any other distribution that comes with Electrum pre-installed.
Unplug your internet cable. Close the curtains. Reboot your computer and start up from that DVD. Don't enter any wireless connection password. Keep it offline.
Start Electrum. Import your private key.
Copy your unsigned transaction from the USB stick, load it into Electrum.
CHECK the transaction in Electrum. Check the fees, check the amount, check all destination addresses (character by character).
If all is okay, sign the transaction. Copy it back to your USB stick.
Turn off the computer. That wipes the Live LINUX from memory and all traces are gone.
Online:
Use your normal online Electrum to (check again and) broadcast the transaction.
Bonus:
After moving all your Bitcoin, and once the transaction confirmed, check if you own Forkcoins.
Install Electrum on your PC.
Import your address to create a watch-only wallet.
Preview the transaction, Copy the unsigned transaction. Put it on a USB stick.
Offline and running without hard drive storage:
Get a Linux LIVE DVD. Use Knoppix or Tails for instance, or any other distribution that comes with Electrum pre-installed.
Unplug your internet cable. Close the curtains. Reboot your computer and start up from that DVD. Don't enter any wireless connection password. Keep it offline.
Start Electrum. Import your private key.
Copy your unsigned transaction from the USB stick, load it into Electrum.
CHECK the transaction in Electrum. Check the fees, check the amount, check all destination addresses (character by character).
If all is okay, sign the transaction. Copy it back to your USB stick.
Turn off the computer. That wipes the Live LINUX from memory and all traces are gone.
Online:
Use your normal online Electrum to (check again and) broadcast the transaction.
Bonus:
After moving all your Bitcoin, and once the transaction confirmed, check if you own Forkcoins.
I hope you know that Casascius physical bitcoins are categorized as collectibles and they are not meant to be redeemed. Although it has complications but you may be better off selling the physical bitcoin itself. Look into the collectibles board: https://bitcointalk.org/index.php?board=217.0
But as for redeeming them, last I checked they were all using mini private key format[1] under the hood and Electrum is supporting importing of this type of keys directly into it[2]. It has the code for it[3].
You can sweep those keys into your existing Electrum wallet or you should be able to create a new wallet by directly importing the minikey into Electrum in the initial wallet creation dialog.
Don't forget to verify Electrum binaries when you download them[4].
[1] https://en.bitcoin.it/wiki/Mini_private_key_format
[2] https://electrum.org/
[3] https://github.com/spesmilo/electrum/blob/d2fa65b9aa1d5d8e3b0eadad547935396cb52ea1/electrum/bitcoin.py#L726
[4] https://bitcointalksearch.org/topic/guide-how-to-safely-download-and-verify-electrum-guide-5240594
But as for redeeming them, last I checked they were all using mini private key format[1] under the hood and Electrum is supporting importing of this type of keys directly into it[2]. It has the code for it[3].
You can sweep those keys into your existing Electrum wallet or you should be able to create a new wallet by directly importing the minikey into Electrum in the initial wallet creation dialog.
Don't forget to verify Electrum binaries when you download them[4].
[1] https://en.bitcoin.it/wiki/Mini_private_key_format
[2] https://electrum.org/
[3] https://github.com/spesmilo/electrum/blob/d2fa65b9aa1d5d8e3b0eadad547935396cb52ea1/electrum/bitcoin.py#L726
[4] https://bitcointalksearch.org/topic/guide-how-to-safely-download-and-verify-electrum-guide-5240594
Looked all over the net and cant find the correct way to Redeem a Casascius bitcoin, any help would be appreciated. Thanks
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