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Author Topic: Split-Key Vanity Address Giveaway  (Read 39 times)
IgnoredPrayers (OP)
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January 11, 2026, 01:17:56 AM
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Hello! I have been messing around with VanitySearch a lot lately, and I would like to get acquainted with the split-key functionality. Instead of making addresses for myself that I won't use, I figured others may be able to benefit from the GPU resources — and I can learn in the process. This idea is entirely inspired by LoyceV, so full credit goes to them and their previous display of generosity.

Notes and constraints
  • Addresses will be legacy/compressed
  • 3-5 case-sensitive character prefixes can be completed almost instantly
  • 6-7 case-sensitive character prefixes are a bit more work but are still possible in a very reasonable time frame
  • 8+ case-sensitive character prefixes would take much more time and may not be feasible
  • For case-insensitive prefixes: I haven't played around with the probabilities relative to my mkey/s numbers enough to find out what my limit is, but I'm willing to experiment

Instructions
I can just create an address, and send you the private key. This means you have to trust me, my computer, my cat, both our email clients, and by definition it can no longer be used for cold storage. So let's not. Instead, use split key:
Step 1: Goto https://www.bitaddress.org/ move your mouse/type in the field until it shows 100% and wait a second.
Step 1.5: Optional but highly recommended. Download the page, verify the download and run it locally*.
Step 2: Click Vanity Wallet click the Generate button next to Generate your "Step1 Key Pair"
Step 3: Reply to this thread with your public key and the prefix for your address. Save the private key somewhere safe. You will need it later when I generated your partial private key. Also, let me know if your preferred prefix is case sensitive, or any case is okay (the latter is much faster)
Step 4: Once you received your partial private key, go back to bitaddress.org and click on Vanity Wallet.
Step 5: Go to step 2 Calculate your vanity wallet. In the first field put the private key you saved and in the second field put the partial private key I gave you. Click Add and Calculate Vanity Wallet
Step 6: Copy the Vanity Private Key (WIF) and import it into your preferred wallet.
Credits to shorena for most of these instructions!
If something doesn't work as expected, have a look at this example.

Original thread: Pretty Addy Giveaway - part 2
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