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

[NotATether]

and for the solvers of puzzle 120 and 125 we kindly plead that you publish the private keys of these puzzles respectfully. It is only fair to give us the keys for us to better understand the puzzle. Thank you. We don't need to know who you are if you solely choose to stay anonymous then that is fine. you could just create a random account and post the keys then you can go ahead to delete the account.

My guess is it's a lurker with large amounts of stupidly expensive GPUs such as A100.

[1714612223]

1714612223

[1714612223]

1714612223

[WanderingPhilospher]

and for the solvers of puzzle 120 and 125 we kindly plead that you publish the private keys of these puzzles respectfully. It is only fair to give us the keys for us to better understand the puzzle. Thank you. We don't need to know who you are if you solely choose to stay anonymous then that is fine. you could just create a random account and post the keys then you can go ahead to delete the account.

My guess is it's a lurker with large amounts of stupidly expensive GPUs such as A100.

Could be. But A100s are not as good as 4090s yet their costs are greater.

Will be interesting, if we ever find out.

[dymkreatif]

Friends, 12.5 reward has also been solved. does anyone knows ?
https://www.blockchain.com/explorer/addresses/btc/1PXAyUB8ZoH3WD8n5zoAthYjN15yN5CVq5

[MrlostinBTC]

It is probably high speed custom GPU's with lots of ram adapted to BSGS. To be honest I was surprised at how little BSGS under loaded my processor. In any event the finders have not pulled any of the alt-coins from the related addresses out. Maybe they found a pattern to the public key in 5 step and are focusing on just that.

[digaran]

A friendly message to @Satoshi aka puzzle designer ;

You owe puzzle solvers nothing, once they find a key and withdraw bitcoins out of it, the mission is accomplished, you can then reveal the private key for public, of course you could give them a month or so in order for them to withdraw those garbage coins out, if they decide not to, it's  because they don't want them.

We have worked as much as the solvers, even more so and we deserve to have a look at the keys we were trying to find for months, otherwise working on these puzzles is a waste of time for those not having lots of rigs to kangaroo the keys.

Since you know the keys and you don't owe the solvers, it'd be great if we could have #120 and then #125 private keys. Please.

[rosengold]

I'm finished my own brute forcer that run all calculations purely on GPU (CUDA), I started some tests and looks ok but the challenge is to be fast as possible and actually it only can be achieved by using multi gpus.

next step is prepare it for multi gpus focusing on #66

if anyone with dozens of gpus woud like to TRY it, we can do a fair partnership to share the money. 

[digaran]

I'm finished my own brute forcer that run all calculations purely on GPU (CUDA), I started some tests and looks ok but the challenge is to be fast as possible and actually it only can be achieved by using multi gpus.

next step is prepare it for multi gpus focusing on #66

if anyone with dozens of gpus woud like to TRY it, we can do a fair partnership to share the money. 

There are a few of such programs, first you need to link to your github page, make it open source so everyone can verify the safety, and in time if there is a need for improvement, other devs will improve it. 😉

[678AFDB0]

EDIT: These guys don't need money, the same team solved puzzle #120 and the money of both remains untouched at 3Emiwzxme7Mrj4d89uqohXNncnRM15YESs

 

It makes sense, if @Etar is right in his calculation, that is at least 6 x 42U racks that suck some 80-90 kWh. Probably somebody that
already has some kind of business (industrial warehouse, proper power supply, etc) that makes good money, so all the expenses from the puzzle operation could be offset against company income and reduce taxes. No need to even touch the puzzle money.

BTW, congrats on the win! Well done.

[Woz2000]

I spent about $30k over a couple of years renting cloud services to attack these puzzles with no luck. I'm down to about $1k a year in electrical costs running my own equipment right now. It would be interesting to know how much others are willing to gamble on this. Given a large enough pool of money, we should set up a LLC to attempt this in a more organized and professonal manner. If 120 and 125 was cracked by the same person/group then I'm going to suggest that it was done by an investment fund.

[GR Sasa]

I spent about $30k over a couple of years renting cloud services to attack these puzzles with no luck. I'm down to about $1k a year in electrical costs running my own equipment right now. It would be interesting to know how much others are willing to gamble on this. Given a large enough pool of money, we should set up a LLC to attempt this in a more organized and professonal manner. If 120 and 125 was cracked by the same person/group then I'm going to suggest that it was done by an investment fund.

Not only that, the person that cracked 120 and 125, are also attacking 130 now. So we need to unite.

[bestie1549]

I spent about $30k over a couple of years renting cloud services to attack these puzzles with no luck. I'm down to about $1k a year in electrical costs running my own equipment right now. It would be interesting to know how much others are willing to gamble on this. Given a large enough pool of money, we should set up a LLC to attempt this in a more organized and professonal manner. If 120 and 125 was cracked by the same person/group then I'm going to suggest that it was done by an investment fund.

Not only that, the person that cracked 120 and 125, are also attacking 130 now. So we need to unite.

funny thing  about that group or the person that solved it is that they moved the funds and never touched it. They didn't need to buy more computers or rent more GPUs. I must think they probably must be using some forms of manual calculations to beat the puzzles. Because if they needed more computational force, they probably might be needing to spend from the money to get that achieved. Or probably they had saved so much money from the beginning before starting. It's just a guess anyway. More force doesn't mean higher chances. I have wasted over $15k renting GPUs trying to beat level 66 but I'm out of funds now. The only issue here is the levels with the public keys seem to be more prone to calculations without the need for too many computers if you know what you're doing though. But the levels without the public keys, I'm sure you need a pool of resources to beat those levels. I'm about ready to give up right now but where do I start from if I give up now?

[sssergy2705]

I spent about $30k over a couple of years renting cloud services to attack these puzzles with no luck. I'm down to about $1k a year in electrical costs running my own equipment right now. It would be interesting to know how much others are willing to gamble on this. Given a large enough pool of money, we should set up a LLC to attempt this in a more organized and professonal manner. If 120 and 125 was cracked by the same person/group then I'm going to suggest that it was done by an investment fund.

Not only that, the person that cracked 120 and 125, are also attacking 130 now. So we need to unite.

funny thing  about that group or the person that solved it is that they moved the funds and never touched it. They didn't need to buy more computers or rent more GPUs. I must think they probably must be using some forms of manual calculations to beat the puzzles. Because if they needed more computational force, they probably might be needing to spend from the money to get that achieved. Or probably they had saved so much money from the beginning before starting. It's just a guess anyway. More force doesn't mean higher chances. I have wasted over $15k renting GPUs trying to beat level 66 but I'm out of funds now. The only issue here is the levels with the public keys seem to be more prone to calculations without the need for too many computers if you know what you're doing though. But the levels without the public keys, I'm sure you need a pool of resources to beat those levels. I'm about ready to give up right now but where do I start from if I give up now?

here the opinion has already been expressed that the person who solved the last keys of the puzzle has a large number of farms for mining. He does not need to purchase equipment, since after the completion of the mining of the ether, there are a lot of video cards left, which has nowhere to apply.
there is a possibility that he even used only part of the equipment.
People reason that the next key will be decided in January, February next year. But I think it will happen much sooner.
Now the reward is high and large miners have joined, so ordinary people have nothing to do here. In principle, it was the same with mining. At the initial stages, you can mine coins with a processor, and then there is nothing to catch there, since large players are connected.

[digaran]

I spent about $30k over a couple of years renting cloud services to attack these puzzles with no luck. I'm down to about $1k a year in electrical costs running my own equipment right now. It would be interesting to know how much others are willing to gamble on this. Given a large enough pool of money, we should set up a LLC to attempt this in a more organized and professonal manner. If 120 and 125 was cracked by the same person/group then I'm going to suggest that it was done by an investment fund.

Ok, firstly, what do you know about brute forcing, and public key search, reducing bit range etc? I'm sure if you knew enough you'd have solved at least 1 of the puzzles, I don't understand why would you spend money on something based on your luck, this is not gambling, you should only spend money when you are 99.999% certain about your calculations and the success.  If you had asked other people here to guide you well enough or even partnered  with an expert, you'd be counting your coins by now.

It is not advisable to engage financially on solving these puzzles without the necessary knowledge.😐

[kalos15btc]

Let's think before do something. We need to find puzzle #130 before the rivals.
Suppose they have 512 GPUs like 3090 (what they have 256 is exactly clear) in average they need ~306 days to solve #130.
If we reduce to range 2^119 bit and rent GPU we need 16 GPUs 3090 to solve 119 bit range in 306 day for every public key.
Price for 4x3090 $0.7/h or $67.2/d * 306 = $20563 Someone willing to shell out 20K for the theoretical possibility of winning?
Don`t forget that we should search 1024 public keys. So we need 1024 participants with at least 16 GPUs 3090 cards everyone.

Using tame and wild kangaroos separately is a good idea. Because we only need to generate tame kangaroos once.
Another point is that to launch only wild kangaroos, we needed tame kangaroos in an amount of at least x2-3 from the expected.
And the supply of tame kangaroos must cover the number of wild kangaroos for the worst case.
For 119bit expected op = 2^60.55 with DP size 27(~470Gb) need at least 2^33.55 Tame Dps to run only wild kangaroos.
I'm not criticizing, but just arguing whether it's worth starting at all without having the resources.
In fact, there are not many hunters here, especially those who have several dozen video cards of the RTX 3090 level.
Just reasoning.

lets think ok, how do you think ? you yes bros
i dont know how are you thinking and calculation things with no logic no ideas no clue about what are the hell you are talking about

so he open 125 in 4 months? bro he maybe find it in the range of 11 or 12 )) he didint finish all the ranges so you come here and calculate us the solver of 125 he solved the puzzle in 4 months that means he finish all ranges in that time bro maybe the pk in the range of 1 fucking 0 f  so please dont calculate
i dont need your calculation and no one need it, we are solving a puzzle, and congrats for him he solve it,, the result of this puzzle is testing the btc network and cracking the wallets using public key, we are not here to be millionaires thank you, i wont buy 150 gpu i will create something bigger than keyhunt, thats how we go further not by byuing hardware bro, we create.

I spent about $30k over a couple of years renting cloud services to attack these puzzles with no luck. I'm down to about $1k a year in electrical costs running my own equipment right now. It would be interesting to know how much others are willing to gamble on this. Given a large enough pool of money, we should set up a LLC to attempt this in a more organized and professonal manner. If 120 and 125 was cracked by the same person/group then I'm going to suggest that it was done by an investment fund.

Not only that, the person that cracked 120 and 125, are also attacking 130 now. So we need to unite.

why bro we need to unit ? are you okey ?? bro anyone can crack this puzzle and the winenr got the prize congrats for him and if he solve 130 135 etc we say congrats not we must be unit or wtf you say ... you just want the money ?

[digaran]

Why so serious and why so angry bro?  Chill the f out and stop snapping at people for their opinions, we all deserve respect and should respect others as we like them to respect us.

The solver of #120 and #125 seems to have chickened out in to a cave or something, that's why they are not revealing the solved keys, not everyone is the same, so we don't really know how they were solved.😉

Looking forward to see your new key cracker bro, peace.

[GR Sasa]

why bro we need to unit ? are you okey ?? bro anyone can crack this puzzle and the winenr got the prize congrats for him and if he solve 130 135 etc we say congrats not we must be unit or wtf you say ... you just want the money ?

Lol. I'm saying that so others can have a chance to win some bitcoins rather than one guy solves all puzzles and takes all prizes for himself. You understand?  

EDIT: I think this person @kalos15btc is the solver of the two puzzles. He clearly shows that he don't want the community to unite together, so he can take the opportunity to solve next puzzles and take all money for himself. BEWARE GUYS!

[digaran]

Lol.

EDIT: I think this person @kalos15btc is the solver of the two puzzles. He clearly shows that he don't want the community to unite together, so he can take the opportunity to solve next puzzles and take all money for himself. BEWARE GUYS!

Well, I also think of you as a suspect of being the solver yourself, weren't you the first person posting about what rigs and for how long were used to solve #125? Yeah you seem to know more than you show!😉

[pbies]

Lol.

EDIT: I think this person @kalos15btc is the solver of the two puzzles. He clearly shows that he don't want the community to unite together, so he can take the opportunity to solve next puzzles and take all money for himself. BEWARE GUYS!

Well, I also think of you as a suspect of being the solver yourself, weren't you the first person posting about what rigs and for how long were used to solve #125? Yeah you seem to know more than you show!😉

It is him!!!

[ripemdhash]

well.

what is best for finding  between 63 and 64 bit privatekey when I know public key.

what is the time from start to find?

what is good for cpu and GPU? and can you share link to github?

I mean better pollard or bsgs?

here link how install pollard on vast.ai https://www.youtube.com/watch?v=1BHNer9dZ_M

[nomachine]

64 bit privatekey when I know public key.

what is the time from start to find?

if you know the public key 10 minutes.
if not a couple of million years.When all the public keys from this puzzle are gone, we're at a dead end.