6108F178B39FF904C9F408741935554E042BDE257DB7F5621555175BACAC2A9C
Example private key 6108A178B39FF904C9F408741935554E042BDE257DB7F5621555175BACAC2A9C
Bitcoin Address 1GHVFk9HB2ke2UJsqTWWYiqVHemUyn8jTL
Well, there you go. That didn't take long. Make another one, and this time change 2 digits, or 3 digits, but don't tell us. Show the public bitcoin address as well. I'm sure someone will get to work on it.
Put a token bounty.
Then do another one where you change 5 digits, and another one with 8 digits. heheheheh.
Let's see how fast it will get cracked, then you will find your answer.
In other words, don't do this with actual bitcoins unless you do change at least 30 or more digits. (and then, you might as well change everything.) What I meant was your true bitcoin savings or stash.