Author

Topic: Questions about Casascius Bitcoins (Read 178 times)

legendary
Activity: 2646
Merit: 6681
Self-proclaimed Genius
January 09, 2025, 01:45:25 AM
#10
-snip-
Since you're using Electrum, just follow the instructions in this thread: https://bitcointalksearch.org/topic/--5524213

Follow the first reply (post #2) if you want a direct route which can be done in a single online machine.
Follow the third reply (post #4) if you want a safer route of keeping the private key offline until the coin is safely spent.

It's worth reading the notes by other members regarding the value of the coin (unspent).
?
Activity: -
Merit: -
January 08, 2025, 04:26:03 PM
#9
update on prior post, I entered the already redeemed test Casascus bitcoin address into Electrum without the p2pkh and I was able to progress to see the transaction history for the already redeemed Casascus address 1CaWo8SJMaUK9npzFonMhwXeC4iVbkiFtV

Ok. So when I redeem my funded tokens, I will come to the transaction section of Electrum and I will see the balance of my funded tokens....

How can I then transfer the balance of my funded Casascus token to Coinbase?

Thank you for your experience. Wanting to make sure I do everything right. Much appreciated!!
?
Activity: -
Merit: -
January 08, 2025, 04:18:57 PM
#8
Hi All -

Seeking guidance on redeeming a Casascius Bitcoin. I read the thread but I am new and want to make sure I understand.

1) download Electrum
2) within Electrum, select import bitcoin addresses or private keys
3) input bitcoin address off of Casascus sticker with p2kph prior to the public and private Keyes (I found a peeled coin on ebay, using that as an example)

https://www.ebay.com/itm/334816725499?_skw=Casascius+Bitcoins+pcgs&itmmeta=01JH3V4M34SXJEFHS4JC0PA9Y5&hash=item4df4a1c9fb:g:y9gAAOSw3rdjcrIl&itmprp=enc%3AAQAJAAAA0HoV3kP08IDx%2BKZ9MfhVJKk1DeoeuwIUMk7RyrrueknzClafi1oQA7niRoThlxirw224dDhwAcb6hF2igX4OxTmB89v2DmB0BSYly5qAWPDVFdsFrMziLH7MgDxFqW3I2RScEX2DdHVpPsZ8rt5s4E5s15eeYZWUxe1kgqS4MlGRXdKpplfwCoEb4Y8tf2Ur62NSPuCAVeP%2Bx7pY%2FMAQpI6asj4Y2Mn8FMyE05ETCFpuSCutDge70TOOhaISrlCWfS8hk08OqhdEYU3wDvbZMOM%3D%7Ctkp%3ABk9SR9bBkvuIZQ
       
p2pkh/1CaWo8SJ/MaUK9npzFonMhwXeC4iVbkiFtV........so for this example, I would enter p2pkh1CaWo8SJMaUK9npzFonMhwXeC4iVbkiFtV into the import bitcoin addresses or private Keyes section of Electrum

This is where I am hitting a road block. I am on the import bitcoin addresses or private keys page within Electrium. I entered p2pkh1CaWo8SJMaUK9npzFonMhwXeC4iVbkiFtV and the next button is grayed out. I assume if everything was correct, the next button would not be grayed out. BTC is very valuable so I am attempting to do a dry run on redeeming one  with a redeemed token I found on ebay to familiarize myself with the process.

Grateful for any suggestions, guidance or pointing out anything that I am missing.

Many thanks!!!
newbie
Activity: 14
Merit: 7
April 03, 2021, 06:35:46 PM
#7
This is all very helpful info. I’ve bought on one occasion and have never redeemed, so I’m not a subject matter expert on the topic. If anyone has some more knowledge to share on the topic, I’m all ears and I truly appreciate it!
legendary
Activity: 3038
Merit: 4418
Crypto Swap Exchange
April 02, 2021, 12:15:28 PM
#6
i believe those private keys are in a special shorter form called mini private key format that can be found here:
https://en.bitcoin.it/wiki/Mini_private_key_format
in that case the key has to be converted to a normal WIF first then that should be imported in a wallet. casascius has some tools on github for it.
Electrum supports mini private key. Casascius's mini keys were 22 characters instead of the usual 30. Electrum will support anything more than 20 if it is valid.

It's simple to actually just do the whole process of obtaining a standard WIF yourself. Just SHA256 it and you'll get an ECDSA private key which can easily be converted into a WIF.
legendary
Activity: 2128
Merit: 1293
There is trouble abrewing
April 02, 2021, 11:08:02 AM
#5
AFAIK, behind a casascius bitcoin you can find a private key of a p2pkh address (starting with "1"). Example:

i believe those private keys are in a special shorter form called mini private key format that can be found here:
https://en.bitcoin.it/wiki/Mini_private_key_format
in that case the key has to be converted to a normal WIF first then that should be imported in a wallet. casascius has some tools on github for it.
hero member
Activity: 3094
Merit: 606
BTC to the MOON in 2019
April 01, 2021, 05:46:17 PM
#4
You can also use other online wallets like Atomic Wallet and Exodus, there are tutorials in youtube on how to import your private key, it's easier since when you are using these wallets, you can trade your bitcoin into other assets in the same platform easily.
newbie
Activity: 14
Merit: 7
April 01, 2021, 02:21:17 PM
#3
This is helpful. Thank you.
legendary
Activity: 1512
Merit: 7340
Farewell, Leo
April 01, 2021, 10:35:45 AM
#2
If someone has a bitcoin written out as a long sequence of numbers and letters on a piece of paper, how can that long sequence of numbers and letters be sent to an exchange or a digital wallet?
That "long sequence of numbers and letters" is the private key of the address. Every digital wallet uses this text to sign you transactions. Without it, you cannot prove that you own the address, because you cannot provide a valid signature to the network.

AFAIK, behind a casascius bitcoin you can find a private key of a p2pkh address (starting with "1"). Example:
Code:
KwR5eVh1V678RioffU9fSVFdKBJP3pK7Fp4VqTsxXGRDR3UjxfQ3

You can import such key to a wallet like electrum.

Steps:
1) New/Restore.
2) Name your wallet and click next.
3) Import Bitcoin addresses or private keys.
4) p2pkh:
5) Click "Next"

And just like that you'll have successfully transferred your bitcoins digitally. They're ready to be spent.



newbie
Activity: 14
Merit: 7
April 01, 2021, 10:24:02 AM
#1
Regarding Casascius Bitcoins. I know the visible numbers and letters on the back of the coin is the "public key" & that the "private key" is under the sticker. I am not planning on redeeming any tokens but I am interested in knowing the technical process for how to redeem them.

If someone has a bitcoin written out as a long sequence of numbers and letters on a piece of paper, how can that long sequence of numbers and letters be sent to an exchange or a digital wallet?

I would like a deeper understanding. Thanks!
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