== Bitcoin challenge transaction: ~1000 BTC total bounty to solvers! ==UPDATED==

[WanderingPhilospher]

I use my old GTX 960 and it literally solve 63 in less than a minute. If I want to use it to hunt 120, average 300 years. LoL. I guess if 64 with known public key and I use GTX 3060, I guess it can be solve in less than 15 seconds. That's also reason why if by chance you found 64, someone recommend to pay higher on transaction fees or otherwise once known public key, I believe those bot will attack in less than a minute.

Look at it this way, 50% of brute force on #64 = 2^63 operations while #120 only requires 2^60 operations with kangaroo.
If people aren't pooling resources for either brute or kangaroo or bsgs, then it will be a long wait unless you have Zielar's equipment then #120 is doable within 2 months +/-

There is a pool for #64 and I have tried to get people to pool resources with bsgs and kangaroo but I guess everyone thinks they can solve on their own.

And I believe you are correct, whoever finds #64 must pay high trans fee to get in into a block before someone else attacks it with kangaroo.

There is a pool already running. I think someone did the math for 64 and still 1 out of 800,000 to find the key  after breaking the shares if I am not wrong. The pool is running less than 20 people, not sure about it. I don't think it's plausible to find 64 alone, unless someone is really lucky hitting a jackpot by using random. I have my own rig for Ethereum but far from enough to run Kangaroo. Even if I have enough to go for it, I prefer to choose safer path continue mining Ethereum because if you do the math, it has no difference putting 2 months for 120 and it's not a guarantee you will hit the jackpot. Just doing some fun things on puzzle, who knows I might be the lucky to hit jackpot since my old GPU can't mine anymore.

Just for your reference. Let's say you have 256 RTX 3080 with current price, you are going to get about USD 7.50 nett daily on each.

1 RTX 3080 = USD 7.50 nett daily
256 RTX 3080 = USD 1,920 nett daily
USD 1,920 x 60 = USD 115,200 2 months

The award not even near even if you just need 128 RTX 3080

I hear ya, no doubt mining = guaranteed money.
But if you had your 3080s and your friend had theirs, etc. etc. you could solve #120 quickly. But to just solve for #120 is a waste, IMO. Target 120 through 160, at least the range, then all wilds can be tamed and all be in the same range not in lower 1/32 range.

Also, if you have 256 3080s, mere 1.2 BTC is nothing and you are obviously in it for mining, but if you only have 1 and you have friends who have 1, that is the combining power effect where maybe you can net more than mining with 1 card. Who knows. It's fun, it's a challenge, next one breaks the world record...

The #64 pool is only as good as the number of people who sign up for it and actually run their rigs for awhile. But it is an enormous task, no doubt. Running same power with Kangaroo, the 120 would be found first.

[WanderingPhilospher]

The award not even near even if you just need 128 RTX 3080

Luckily I picked up Vega 7s when they were out and new. So it worked out, since they can't use the current programs to attack the challenge, they do the mining, 24/7 (still best in the market IMO) and I occasionally throw my 3070s, and 20xx cards in the mining mix when I want to get past a payout threshold or I am going to be away for awhile.

[nioctib.co]

The award not even near even if you just need 128 RTX 3080

Luckily I picked up Vega 7s when they were out and new. So it worked out, since they can't use the current programs to attack the challenge, they do the mining, 24/7 (still best in the market IMO) and I occasionally throw my 3070s, and 20xx cards in the mining mix when I want to get past a payout threshold or I am going to be away for awhile.

I don't have even 1 RTX 3080, lol. It's not worth to invest on 3080 buying at price gouging market. If you can get MSRP at 799 for RTX 3080, then you can BE in about 3 months. I have rig running 2060 and 2 x 3060 only. No planning to go for AMD card  because I have RX 480 rig and still running now, it's so noisy and higher power consumption. I did consider to buy a Vega 7s or 8s laptop especially I saw a guy post he can run like 5000++ mkey/sec with  Asus Zephyrus that day. If AMD card, I think RX 5700 XT is definitely a good invest if can get at good price. Unfortunately still lock down and unable to travel. I did check at some neighboring country, they do have stock and at a good price.

[fecell]

whoever finds #64 must pay high trans fee to get in into a block before someone else attacks it with kangaroo.

use Electrum and disable Replace-By-Fee to avoid double spending.

[fxsniper]

if scan all it use a time too much

Depent of your speed, i made some calculations based on the speed, the time is for scan all the range in that bit space:

Code:

Puzzle 120 @ 1 Terakeys/s :     21074771622667996 years
Puzzle 120 @ 1 Petakeys/s :     21074771622667 years
Puzzle 120 @ 1 Exakeys/s :      21074771622 years
Puzzle 120 @ 1 Zettakeys/s :    21074771 years
Puzzle 120 @ 1 Yottakeys/s :    21074 years
Puzzle 160 @ 1 Terakeys/s :     23171956451847141650870193314 years
Puzzle 160 @ 1 Petakeys/s :     23171956451847141650870193 years
Puzzle 160 @ 1 Exakeys/s :      23171956451847141650870 years
Puzzle 160 @ 1 Zettakeys/s :    23171956451847141650 years
Puzzle 160 @ 1 Yottakeys/s :    23171956451847141 years
Puzzle 256 @ 1 Terakeys/s :     1835871531540401373407708412745559168131740612197318060720 years
Puzzle 256 @ 1 Petakeys/s :     1835871531540401373407708412745559168131740612197318060 years
Puzzle 256 @ 1 Exakeys/s :      1835871531540401373407708412745559168131740612197318 years
Puzzle 256 @ 1 Zettakeys/s :    1835871531540401373407708412745559168131740612197 years
Puzzle 256 @ 1 Yottakeys/s :    1835871531540401373407708412745559168131740612 years

I know there is no puzzle 256, but that is the exact time for the real wallets.

if can fine keyspace  low than 2^30 to 2^40 may be better ot less 1 days scan complate (Max 2^50)

(2^ 60 too high)

I also implement BSGS in C, in my tool Keyhunt, is not so fast, but the puzzle 63 can be solved in one hour or two. Also in minutes is you have some luck with  Random mode.

other puzzle no pubkey  still no idea what to do?

Puzzles without publickey are more slow, that is why puzzle 64 is stll not found.

Regards!

From calculations based

Anyone want to scan all , you can do it, scan till die, as you want LOL.

puzzle require to smart and better way, may be need to calculate zone, keyspace before scan and found in 1 hour or 5 hour something like that

if challenge scan found before you die, need to be change method to scan

ok, brute-force all may be absolute method to found but it use time a lot

may be I try puzzle challenge for a while and may be give up or back when recall or boring

still never have some news about someone can brute-force full key success

[fxsniper]

I think for now
Try focus on 9 puzzle that have public key for can use reference

Other puzzle not have public still like fly on space  (know only range information)

high bits puzzle need to fine algorithm or upgrade method great than now he have bitcrack, kangaroo, BSGS


Long term method brute-force from bitcrack may be strategy for solve puzzle
Absolute way solve puzzle

brute-force straight directly make waste time and use a lot of power to force
need to use smart calculate for brute-force

Some bad idea for spend bitcoin
Every one have some bitcoin on hand right?
Can possible with use dust bitcoin sent to random address that guess nearly puzzle and use it reference like use pubkey on kangaroo
use it like calculate phone location like mobile cell site

Like pubkey can help to solve puzzle high bits with kangaroo
I don't know may be not works
I think may be try to test play around
send some bitcoin dust I have sent to some address random on range and sent it out again to make pubkey
may be 10 satoshi or minimum dust limited with lowest fee limited


We have low power brute-force, 256 x tesla v100  still very very low power
Challenge is create massive brute-force for solve puzzle (idea lotto, still can do when bitcoin price still high should do before bitcoin price drop) but still limited with low bits

[WanderingPhilospher]

I think for now
Try focus on 9 puzzle that have public key for can use reference

Other puzzle not have public still like fly on space  (know only range information)

high bits puzzle need to fine algorithm or upgrade method great than now he have bitcrack, kangaroo, BSGS


Long term method brute-force from bitcrack may be strategy for solve puzzle
Absolute way solve puzzle

brute-force straight directly make waste time and use a lot of power to force
need to use smart calculate for brute-force

Some bad idea for spend bitcoin
Every one have some bitcoin on hand right?
Can possible with use dust bitcoin sent to random address that guess nearly puzzle and use it reference like use pubkey on kangaroo
use it like calculate phone location like mobile cell site

Like pubkey can help to solve puzzle high bits with kangaroo
I don't know may be not works
I think may be try to test play around
send some bitcoin dust I have sent to some address random on range and sent it out again to make pubkey
may be 10 satoshi or minimum dust limited with lowest fee limited


We have low power brute-force, 256 x tesla v100  still very very low power
Challenge is create massive brute-force for solve puzzle (idea lotto, still can do when bitcoin price still high should do before bitcoin price drop) but still limited with low bits

Don't over think it. Think long think wrong. Pick a path and hit it hard. Shooters shoot!

For the random piece, I have shrunk down the playing field and I have a 3 and 281 trillion chance every 6 minutes or so for #120.

There is no wrong or right way, you just have to pick a way that makes sense and you feel most confident about and go with it.

[fxsniper]

Don't over think it. Think long think wrong. Pick a path and hit it hard. Shooters shoot!

For the random piece, I have shrunk down the playing field and I have a 3 and 281 trillion chance every 6 minutes or so for #120.

There is no wrong or right way, you just have to pick a way that makes sense and you feel most confident about and go with it.

now I try to scan small range cover with limited in 1 hour or 5 hour max. no more 3 days long

right,  is no wrong or right , just do it.

[fecell]

is OP still here?
can you explain your env used to create tx? win, mac, nix, python, btc core, other wallet? what a flags was used to compile openssl-1.0.1c?

[zielar]

As for me, I observe the topic from time to time - you can be sure. However, I do not understand the question. I am not the creator of this challenge, but only run the main thread about it and take an active part in it.
At this stage, I can only say that there is a problem with VanitySearch and BitCrack on the new NVIDIA GPU hardware (all RTX 30xx) with SM80 and SM86 architecture. If anyone has a desire and I can see the solution to the problem -> I refer to GitHub where I described as many details as possible:

https://github.com/JeanLucPons/VanitySearch/issues/81#issuecomment-800473778

[uesleipinheiro]

Chegando agora no fórum, muita coisa boa sobre BTC vou ficar atento à novas postagens para ficar por dentro mais ainda ..

[fxsniper]

As for me, I observe the topic from time to time - you can be sure. However, I do not understand the question. I am not the creator of this challenge, but only run the main thread about it and take an active part in it.
At this stage, I can only say that there is a problem with VanitySearch and BitCrack on the new NVIDIA GPU hardware (all RTX 30xx) with SM80 and SM86 architecture. If anyone has a desire and I can see the solution to the problem -> I refer to GitHub where I described as many details as possible:

https://github.com/JeanLucPons/VanitySearch/issues/81#issuecomment-800473778

developer program stop update multiple month, year

it need some one programmer, coder who interesting on challenge help to fix and update by pull request to merge main code, or some one fork to update new one

[_Counselor]

As for me, I observe the topic from time to time - you can be sure. However, I do not understand the question. I am not the creator of this challenge, but only run the main thread about it and take an active part in it.
At this stage, I can only say that there is a problem with VanitySearch and BitCrack on the new NVIDIA GPU hardware (all RTX 30xx) with SM80 and SM86 architecture. If anyone has a desire and I can see the solution to the problem -> I refer to GitHub where I described as many details as possible:

https://github.com/JeanLucPons/VanitySearch/issues/81#issuecomment-800473778

As far as I know, you worked with JeanLucPons together to solve #115. Has he no longer interested in this project? On the Github, you can see that he is active, but is engaged in some other projects.

[BtcMaker92]

You can use it to solve 64 puzzles.
https://www.youtube.com/watch?v=dUMaP6hVCo4
BTCGood luck.

[WanderingPhilospher]

You can use it to solve 64 puzzles.
https://www.youtube.com/watch?v=dUMaP6hVCo4
BTCGood luck.

Using random strides?  Better off sticking to the original I posted, random ranges.

[fxsniper]

You can use it to solve 64 puzzles.
https://www.youtube.com/watch?v=dUMaP6hVCo4
BTCGood luck.

Using random strides?  Better off sticking to the original I posted, random ranges.

WanderingPhilospher code still better than on video
https://bitcointalk.org/index.php?topic=4453897.msg56579261#msg56579261

however script need to have more feature it require some function to record what is already scan

run by random can be duplicate
may be use way split divide each equal and random quantity of total and random number
when got number random use multiply to get start point for scan
create array or text file to store number that used already


Visual Studio 2019
Console App (.NET Framework)

Program.cs

Code:

using System;
using System.Diagnostics;
using System.ComponentModel;
using System.IO;
using System.Threading.Tasks;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;


namespace MyProcessSample
{
    class MyProcess
    {
        public static void Main()
        {
            try
            {
                using (Process myProcess = new Process())
                {
                    for (int i = 1; i <= 10000000; i++)
                    {
                        //myProcess.StartInfo.UseShellExecute = false;
                        myProcess.StartInfo.UseShellExecute = true;
                        //string filepath = '"' + Directory.GetCurrentDirectory() + "\\clBitCrack.exe" + '"';
                        string filepath = '"' + Directory.GetCurrentDirectory() + "\\cuBitCrack.exe" + '"';
                        //string filepath = '"' + Directory.GetCurrentDirectory() + "\\kangaroo.exe" + '"';
                        //string filepath = '"' + Directory.GetCurrentDirectory() + "\\Kangaroo.exe" + '"';
                        //string filepath = '"' + Directory.GetCurrentDirectory() + "\\BSGS.exe" + '"';
                        Console.WriteLine("The current directory is {0}", filepath);
                        myProcess.StartInfo.FileName = filepath;

                        //int start = random.Next(9223372036854775808, 18446744073709551616)
                        UInt64 Base = 0x8000000000000000;

                        var random = new Random();
                        UInt64 high32Rnd = (UInt64)random.Next();
                        UInt64 low32Rnd = (UInt64)random.Next();
                        UInt64 rnd64 = (high32Rnd << 32) | low32Rnd;
                        rnd64 >>= 1;
                        rnd64 += Base;

                        Console.WriteLine("rnd64 = {0}", rnd64);
                        //long longRand = Math.Abs(startup);

                        ulong step = 100000000;
                        ulong stop = rnd64 + step;
                        Console.WriteLine("Random = {0}", rnd64);
                        Console.WriteLine("Step = {0}", step);
                        Console.WriteLine("PlusStep = {0}", stop);
                        string beginHEX = rnd64.ToString("X");
                        string endHEX = stop.ToString("X");


                        string myArguments = " -c -u -o out.txt --keyspace " + beginHEX + ":+100000000 -i in.txt";
                        Console.WriteLine("Command = cuBitCrack.exe {0}", myArguments);
                        myProcess.StartInfo.Arguments = myArguments;
                        myProcess.StartInfo.CreateNoWindow = true;
                        Console.WriteLine(DateTime.Now.ToString("yyyy-MM-ddTHH:mm:ss.ffffffK"));
                        Console.WriteLine("Start = {0}", beginHEX);
                        Console.WriteLine("End = {0}", endHEX);
                        myProcess.Start();
                        myProcess.WaitForExit();
                        Console.WriteLine(DateTime.Now.ToString("yyyy-MM-ddTHH:mm:ss.ffffffK"));
                        Console.WriteLine("=========================");
                        if (i == 10000000)
                        {
                            break;
                        }

                    }
                    Console.WriteLine("Press any key to exit.");
                    Console.ReadLine();
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
            }
        }
    }
}

[zielar]

You can use it to solve 64 puzzles.
https://www.youtube.com/watch?v=dUMaP6hVCo4
BTCGood luck.

Range # 120 and the time it takes to decode it at the moment with my GPU's overbooking is too large for me to start working on it without collision right now. JeanLucPons is busy with other projects (his professional life is more than working on another program) and therefore not active in other programming projects. I will probably start work on # 120 with JeanLucPons in due course, but I don't know when it will happen at the moment.

[Robert_BIT]

Hello,

I have compiled the latest cuBitCrack.exe to work on a Tesla V100 on a Windows server but when I run it I think the speed is to slow for my GPU.

I used this command for testing

Code:

./cuBitCrack.exe -u -c --keyspace 517718a91d1993742cc 1GTxA9PsPPd1VtASvqQdXnSJ877bxhEA7A

and it shows

Code:

Tesla V100-SXM2- 342 / 16258MB | 1 target 3.44 MKey/s (434,110,464 total) [00:02:04]

By my calculations it should be at least 40-50 MKey/s with Tesla... Any ideas to improve speed, maybe some commands or do I have to recompile?

[WanderingPhilospher]

Hello,

I have compiled the latest cuBitCrack.exe to work on a Tesla V100 on a Windows server but when I run it I think the speed is to slow for my GPU.

I used this command for testing

Code:

./cuBitCrack.exe -u -c --keyspace 517718a91d1993742cc 1GTxA9PsPPd1VtASvqQdXnSJ877bxhEA7A

and it shows

Code:

Tesla V100-SXM2- 342 / 16258MB | 1 target 3.44 MKey/s (434,110,464 total) [00:02:04]

By my calculations it should be at least 40-50 MKey/s with Tesla... Any ideas to improve speed, maybe some commands or do I have to recompile?

You have to use/play with -b -t -p settings. Also, you can expect somewhat slower speed when checking -u uncompressed and -c compressed keys at the same time.

start off with low settings and tweak until you find the sweet spot. I'd start off with -b 96 -t 512 -p 1024 and then tweak from there.

[Robert_BIT]

Thanks @WanderingPhilospher.

Yes, tweaking the -b -t -p settings is the solution. I should've read the help file on GitHub too where I can see it's nicely explained. Silly me