[quote author=cr1776 link=topic=1623960.msg16383348#msg16383348 date=1475001043
I think that is closer to what he wants, but what he is really talking about is something like this:
5supersecretprivatekeyEeiWPBaZM4o6frexXvmko6
[/quote]
Creating a valid private key isn't that hard. I'd have to look up how it works with the checksum, but it can be done.
What you could do, is edit the source from vanitygen in such a way that it only uses addresses that start with 5LoyceWasHere instead of random data. The second part of the key can be random and changed while searching for an address that starts with 1Loyce, and the last part of the key can be the checksum.

From http://directory.io/:
+ 5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreB4AD8Yi
+ 5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreBF8or94
+ 5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreBKdE2NK

5 super secret private key space to randomize checksum

But as steven0021 said: it's insecure. And you can't even show off how cool the private key is, because that would make it even less secure. So it's useless.

That's why I tested with 1 thread. It's easier to see that way, as other applications eat CPU too.
Just in case: you can always turn it off when you want to use your PC, and turn it back on when you don't need the speed somewhere else. It just continues checking random addresses, so no work gets lost.

The following Rollin users received Free Lottery Tickets (Ticket number(s) shown behind the name). Your name can be in the list more than one time:
3x shanem 41,42,43
maleficent 44
2x interbtc 45,46
Refbackteam 47
2x hitava 48,49
james1 50
ashitha 51
hulkpanther 52
tolerl 53
hardtime 54
arunkmr865 55
aRp 56
2x psonowa 57,58
2x maat 59,60
Abe_ 61
wio 62
2x singpays 63,64
2x SimpleRed7 65,66
maksosip 67
2x CASIO 68,69
famiextrem 70
vavilon 71
3x katerniko1 72,73,74
Alby 75
Humbertin19_ 76
mattbuddy 77

If you posted your name but didn't get tickets, one of these options is most likely the cause:

• You used the wrong format in your post. Use this format: Username: Loyce
• The username you posted doesn’t exist on Rollin.io
• You never talked in Rollin Chatter Box
• You have Red Trust on Bitcointalk
• You are Blacklisted for abusing this giveaway
• You have already claimed Free Tickets today
• You posted shortly before I posted this, and your post wasn't there yet when my Scraping Bot checked for new posts. If this happened, your post will be included in the next run.

You can always send me a message.

3 remaining ticket(s) (78-80) donated in Rollin Chatter Box:
PvP 78,79,80

Next Draw is Tuesday 23:00h (Dutch time).
Lottery pot: 13 mBTC.
Good luck!

This works fine here:
./vanitygen -t 1 1test

Isn't lowering the priority a better idea than limiting the number of threads? On Linux I just put "nice" in front of the command (although it doesn't help much with oclvanitygen).

Congratulations Visions for winning 114 mBTC.
Full Lottery Results are of course public.

The winning Lottery Ticket was #592.

The next Draw is Tuesday (tonight) 23:00h Amsterdam time. As always, you can claim Free Lottery Tickets every day.
Next server seed: 7hW76478e5R15C25252385C4O72E1JFR

The following Rollin users received Free Lottery Tickets (Ticket number(s) shown behind the name). Your name can be in the list more than one time:
sangmrsimple 1
2x unam3 2,3
natsag3 4
Humbertin19_ 5
tolerl 6
2x SimpleRed7 7,8
bloomy 9
3x shanem 10,11,12
AtlantaSix 13
Hardtime 14
2x hitava 15,16
2x maat 17,18
hulkpanther 19
Visions 20
mattbuddy 21
maleficent 22
arunkmr865 23
3x Erikalui 24,25,26
aRp 27
maksosip 28
2x singpays 29,30
Abe_ 31
sangmrsimple 32
ashitha 33
Ivandrago80 34
star2343 35
2x psonowa 36,37
james1 38
Wilhelm 39
2x CASIO 40,41
vavilon 42
2x interbtc 43,44
famiextrem 45
3x katerniko1 46,47,48
2x bankk 49,50

If you posted your name but didn't get tickets, one of these options is most likely the cause:

• You used the wrong format in your post. Use this format: Username: Loyce
• The username you posted doesn’t exist on Rollin.io
• You never talked in Rollin Chatter Box
• You have Red Trust on Bitcointalk
• You are Blacklisted for abusing this giveaway
• You have already claimed Free Tickets today
• You posted shortly before I posted this, and your post wasn't there yet when my Scraping Bot checked for new posts. If this happened, your post will be included in the next run.

You can always send me a message.

0 remaining ticket(s) (-) donated in Rollin Chatter Box:
-

Next Draw is Monday 23:00h (Dutch time).
Lottery pot: 5 mBTC.
Good luck!

I can do this if you want.

How is this checked? What if the sending party says it's sent and the receiving party denies it. How can the escrow take a decision in this scenario?

All gone after wagering 2%.
It's confusing:
0.5 "coin" is 5 mBTC. Balance is in mBTC, while "my account" is in BTC. That's three different units.

Got this from freespins. I don't even remember where I found the promo. Now I have to wager this 40x. Is this normal? It took forever, turning on all the blinking things they could find


Lol it's in mbtc not btc Now things make more sense

Aren't you paranoid someone will take your paper wallets?

I found what I wanted (with some effort):
1. Use Chrome browser to go to https://www.bitaddress.org/ (of course it's recommended to do this offline from a LIVE CD)
2. Click Paper Wallet
3. Right-click on the private key, select Inspect
4. Replace it with the private key for your vanity address
5. Repeat steps 3 and 4 for the bitcoin address
6. Print to PDF
7. Click Wallet details (still on bitaddress.org) and enter the private key for your vanity address
8. Edit the PDF, I used The GIMP, which is probably available on your LIVE CD. Open it in 600 dpi resolution.
9. Copy the QR-codes Bitcoin Address and Private Key WIF and paste them into the PDF
10. Print the PDF, cut it out, fold it, tape it, and don't lose it.
You now have the bitaddress.org paper wallet with your own private key, bitcoin address, and QR-codes.

Final result:

(needless to say: do not use this one!)

Congratulations james1 for winning 33 mBTC with a Free Lottery Ticket.
Full Lottery Results are of course public.

The winning Lottery Ticket was #289.

The next Draw is Monday (tonight) 23:00h Amsterdam time. As always, you can claim Free Lottery Tickets every day.
Next server seed: 4QE43135N2AM26w282Vz42L1XUQNl87Y

Lottery Bot is going to change soon, to allow for multiple prizes instead of one winner takes all.

The following Rollin users received Free Lottery Tickets (Ticket number(s) shown behind the name). Your name can be in the list more than one time:
2x bankk 1,2
2x maat 3,4
2x interbtc 5,6
lolgatocell 7
sinkorswim 8
tolerl 9
Humbertin19_ 10
natsag3 11
3x shanem 12,13,14
2x psonowa 15,16
2x SimpleRed7 17,18
star2343 19
maleficent 20
2x Xanidas 21,22
AtlantaSix 23
2x hitava 24,25
vavilon 26
2x unam3 27,28
ashitha 29
aRp 30
arunkmr865 31
Abe_ 32
M4rc0 33
2x singpays 34,35
3x leps 36,37,38
maksosip 39
james1 40
ginsan 41
2x interbtc 42,43
2x maat 44,45
2x mtbt 46,47
2x SimpleRed7 48,49
2x Slick 50,211
Humbertin19_ 212
natsag3 213
vavilon 214
hulkpanther 215
2x hitava 216,217
2x CASIO 218,219
arunkmr865 220
james1 221
famiextrem 222
3x shanem 223,224,225
hardtime 226
2x interbtc 227,228
ashitha 229
aRp 230
2x psonowa 231,232
Abe_ 233
Wilhelm 234
Provablylucky_ 235
maleficent 236
2x maat 237,238
star2343 239
2x bankk 240,241
3x Erikalui 242,243,244
2x mtbt 245,246,247
2x SimpleRed7 248,249
2x CASIO 250,251
Humbertin19_ 252
2x psonowa 253,254
3x shanem 255,256,257
ashitha 258
2x hitava 259,260
Provablylucky_ 261
maleficent 262
Scarface4 263
hulkpanther 264
arunkmr865 265
3x katerniko1 266,267,268
SergiuS 269
famiextrem 270
rollindices 271

Happy Hour:
10x SimpleRed7 272,273,274,275,276,277,278,279,280,281
10x james1 282,283,284,285,286,287,288,289,290,291
10x psonowa 292,293,294,295,296,297,298,299,300,301
5x Wilhelm 302,303,304,305,306

If you posted your name but didn't get tickets, one of these options is most likely the cause:

• You used the wrong format in your post. Use this format: Username: Loyce
• The username you posted doesn’t exist on Rollin.io
• You never talked in Rollin Chatter Box
• You have Red Trust on Bitcointalk
• You are Blacklisted for abusing this giveaway
• You have already claimed Free Tickets today
• You posted shortly before I posted this, and your post wasn't there yet when my Scraping Bot checked for new posts. If this happened, your post will be included in the next run.

You can always send me a message.

4 remaining ticket(s) (307-310) donated in Rollin Chatter Box:
FLT rains 3 tickets: Irvoir-1,Scarface4-1,bhattifaisal-1
hassanafridi 310


The screenshot has to show that you buy the Tickets. I was incomplete in the starting post, this was not clear. I've accepted your screenshot, and adjusted the starting post.

Next Draw is Sunday 23:00h (Dutch time).
Lottery pot: 31 mBTC.
Good luck!

You can easily check and correct that by changing back the permissions of all files to the user that should own them.

It was meant to check if any if the files got corrupted. I'm more familiar with checking files myself than all the ins and outs of Bitcoin Core.
The list is too long to post as a message. If you post yours I can do the comparing for you.

If the files got corrupted, your hard drive may be on its end.

Let me help you check your blocks.
Do this in your blocks-directory: md5sum *.dat > checksums_for_Loyce.txt
This should be done in an hour. Post the contents here between code-tags. I'll check if any of my blocks is different. This may help you pinpoint the problem without redownloading everything.

Update: it turns out this doesn't work. All blocks on disk are different, starting from the first one.

Searching for palindromes will take a while. I did find Address: 1LLLLLgCCCCDSbimB83vZf3AbACYcFzo6o, although it's not what I was looking for.

I searched overnight for long prefixes with 5 characters after the 1, just enough to justify using oclvanitygen.

Address: 1LLLLL6CD9xadxzM577JUU9T6VvmKUJ8pw
Privkey: 5KAWeKw9pcoyS6vjtU92nckvvMMMMTfLzbGeVXorGRMcu27tmet
After checking some private keys, I realized it's stupid It would be possible to adjust vanitygen in such a way that it uses a certain private key prefix (say 5AAAAAAA) and search from there. And I'm not going to do that, it's less secure, and I can't adjust vanitygen by myself.

So I'll limit my palindrome-search to the address.

Two weeks ago a Dutch bank posted on their website that it was going to release it's own bitcoin wallet, running within the normal client banking environment.
They quickly took down the page, claiming it was an experimental idea from a few years earlier.

Personally, I don't want it. The whole point of bitcoin is being in control. I'd love to have more financial services without banks, stocks for example.
I've been thinking about "stockchain" for a while. Wouldn't it be great if a company sells stocks, but instead of buying them through banks/brokers, you buy them on a blockchain. Just keep the wallet or your private key long term, or you can sell them, give them away, pay with them, or even gamble with stocks directly.
A blockchain ETF with very low cost could have amazing possibilities. I should create a topic for this

Reinstalling the package fixed the segfault:
# apt-get remove libssl-dev libpcre3-dev
# apt-get remove git make gcc opencl-headers libssl-dev libpcre3-dev ocl-icd-dev ocl-icd-dbg
# apt-get install libssl-dev libpcre3-dev
# apt-get install git make gcc opencl-headers libssl-dev libpcre3-dev ocl-icd-dev ocl-icd-dbg

vanitygen works again.
But something changed for oclvanitygen. It used to "just work" with my Nvidia, without specifying it. Now it gives these options:

And when I select -D 0:0 it can't open it:

I tried everything I tried in March again. I'm not sure what did the trick, but it works again
It "suddenly" worked again after I put my laptop back to using the Nvidia driver for its own graphics.

You can do it offline, from a LIVE Linux CD that hopefully recognizes your dump printer that connects with a cable and doesn't save the pages in its memory.

I broke it
I compiled the code from Private Key Restorer. I used a different user account, so it won't interfere for sure. But before that, I did apt-get install libssl-dev.
It installed something, I didn't look at the details. Later I realized I must have had libssl-dev already, so it may have messed up some dependencies or updated something.
Now I get this:
Oclvanitygen segfaults too. make clean && make doens't fix it. I know it was a really hard to get oclvanitygen to work, but vanitygen always worked out of the box.
I appreciate any suggestions where to start looking.