Author

Topic: Bitcoin puzzle transaction ~32 BTC prize to who solves it - page 285. (Read 208030 times)

newbie
Activity: 45
Merit: 0
Bitcoin is a virtual currency, it has a high level of security, in addition, it also has a freedom, so we can not find out who sent the funds. That is a good thing, but it is also a disadvantage to bitcoin. And I think the author of those deals does not matter, the main thing is that you can get rewards from it.

Like in 23 days "or so" we will have #52  Cool
https://lbc.cryptoguru.org/stats

And that's just because we're covering our 4-day "search debt". @BurtW - you hear this?


Rico
please tell us the priv keys for 41-50 Roll Eyes

They are here: https://lbc.cryptoguru.org/trophies
You just need to read the whole page. (I suggest you to start from bottom to top).
does not work here http://gobittest.appspot.com/Address
hero member
Activity: 582
Merit: 502
Bitcoin is a virtual currency, it has a high level of security, in addition, it also has a freedom, so we can not find out who sent the funds. That is a good thing, but it is also a disadvantage to bitcoin. And I think the author of those deals does not matter, the main thing is that you can get rewards from it.

Like in 23 days "or so" we will have #52  Cool
https://lbc.cryptoguru.org/stats

And that's just because we're covering our 4-day "search debt". @BurtW - you hear this?


Rico
please tell us the priv keys for 41-50 Roll Eyes

They are here: https://lbc.cryptoguru.org/trophies
You just need to read the whole page. (I suggest you to start from bottom to top).
newbie
Activity: 45
Merit: 0
Bitcoin is a virtual currency, it has a high level of security, in addition, it also has a freedom, so we can not find out who sent the funds. That is a good thing, but it is also a disadvantage to bitcoin. And I think the author of those deals does not matter, the main thing is that you can get rewards from it.

Like in 23 days "or so" we will have #52  Cool
https://lbc.cryptoguru.org/stats

And that's just because we're covering our 4-day "search debt". @BurtW - you hear this?


Rico
please tell us the priv keys for 41-50 Roll Eyes
legendary
Activity: 1120
Merit: 1037
฿ → ∞
Bitcoin is a virtual currency, it has a high level of security, in addition, it also has a freedom, so we can not find out who sent the funds. That is a good thing, but it is also a disadvantage to bitcoin. And I think the author of those deals does not matter, the main thing is that you can get rewards from it.

Like in 23 days "or so" we will have #52  Cool
https://lbc.cryptoguru.org/stats

And that's just because we're covering our 4-day "search debt". @BurtW - you hear this?


Rico
hero member
Activity: 896
Merit: 500
I guess that the reason is to prove they know the private key. I guess that it was found by the large collider
thing, since, from what I know, they ask only for a % of the money after "cracking" the private key of a wallet.
As far as I know the "author" of this puzzle-transaction is unknown.
Whom are you asking?

I know.
I just tried to give some sort of reasoning behind what could mean that self-sending of those funds.
Anyone with a better idea is most welcome to share it Smiley

Bitcoin is a virtual currency, it has a high level of security, in addition, it also has a freedom, so we can not find out who sent the funds. That is a good thing, but it is also a disadvantage to bitcoin. And I think the author of those deals does not matter, the main thing is that you can get rewards from it.
legendary
Activity: 3668
Merit: 6382
Looking for campaign manager? Contact icopress!
I guess that the reason is to prove they know the private key. I guess that it was found by the large collider
thing, since, from what I know, they ask only for a % of the money after "cracking" the private key of a wallet.
As far as I know the "author" of this puzzle-transaction is unknown.
Whom are you asking?

I know.
I just tried to give some sort of reasoning behind what could mean that self-sending of those funds.
Anyone with a better idea is most welcome to share it Smiley
legendary
Activity: 1260
Merit: 1019
I guess that the reason is to prove they know the private key. I guess that it was found by the large collider
thing, since, from what I know, they ask only for a % of the money after "cracking" the private key of a wallet.
As far as I know the "author" of this puzzle-transaction is unknown.
Whom are you asking?
legendary
Activity: 3668
Merit: 6382
Looking for campaign manager? Contact icopress!
I repeat: LBC found #51 tonight!   Grin
What is the reason to sweep to the same address?
https://blockchain.info/tx/70ee9ab241829a6f49ebf9f109e97f6e466d938e558bade1c5fe341310bc356e
proof of knowing private key?

I think the same reason as for sweeping #1 - #50: These are bounties - right?

Rico

Amaclin is right. You didn't read (or translate) the question correctly.
The source and the target address in the transaction are the same.

I guess that the reason is to prove they know the private key. I guess that it was found by the large collider thing, since, from what I know, they ask only for a % of the money after "cracking" the private key of a wallet.
legendary
Activity: 1120
Merit: 1037
฿ → ∞
I repeat: LBC found #51 tonight!   Grin
What is the reason to sweep to the same address?
https://blockchain.info/tx/70ee9ab241829a6f49ebf9f109e97f6e466d938e558bade1c5fe341310bc356e
proof of knowing private key?

I think the same reason as for sweeping #1 - #50: These are bounties - right?

Rico
legendary
Activity: 1260
Merit: 1019
I repeat: LBC found #51 tonight!   Grin
What is the reason to sweep to the same address?
https://blockchain.info/tx/70ee9ab241829a6f49ebf9f109e97f6e466d938e558bade1c5fe341310bc356e
proof of knowing private key?
legendary
Activity: 1120
Merit: 1037
฿ → ∞
I repeat: LBC found #51 tonight!   Grin


Rico
legendary
Activity: 1120
Merit: 1037
฿ → ∞
All of this story tell us something.

We now know that someone out there is able to crack aprox. 2^50 private keys in about 1 year.

(in a worst case scenario, also assuming that the one who cracked the 50 addresses brute forced all the possible addresses sequential)

As time goes by this capability will increase, it may take decades and decades or centuries but eventually it will be possible to crack 2^256 pvks.

The transaction referenced in this thread is a good reference to test how far the mankind cracking capabilities are.

...

2^50   1125899906842620   <- This is aprox. the number of bitcoins private keys someone is able to crack in about 1 year
...
2^160   1461501637330900000000000000000000000000000000000   
...
2^256   115792089237316000000000000000000000000000000000000000000000000000000000000000   <- And this is how safe bitcoin is.

Nope. Nope and nope.

a) 1125899906842620 is the number of private keys LBC is able to crack within 15 days (at current speed - see https://lbc.cryptoguru.org/stats)
b) Your calculator seems to have trouble with big numbers
2160 = 1461501637330902918203684832716283019655932542976 <---- also, this is how safe bitcoin is

so

c) Bitcoin is not 256bit safe



Rico
legendary
Activity: 1120
Merit: 1037
฿ → ∞
What we can say with respect to these two posts:

Between 20 and 250 there were 50 - 0 = 50 bounties found.

We call them trophies. There were these https://lbc.cryptoguru.org/trophies found.

Quote
Somewhere between 250 and 251 there is at least one bounty.
Somewhere between 251 and 252 there is at least one bounty.
Etc.

Where the probability of having more than one bounty doubles with each of these spaces.

Quote
If every single private key between 20 and 250 was not tried then there is a (small) possibility that you might have missed another bounty.

We will try every single key. Every single key between 0 and 249.35 was tried. We will now try every single key from 250 on and after #51 is found, then finish the work 249.35 to 250. If it's there, we will miss nothing.

Quote
So, once you find one bounty in a search space (250 ... 251 for example) you really should search the entire remaining space to see if there is a second (aliased) larger bounty!

Sure. That's the normal mode of operation. That's how we found e.g. f6cc30532dba44efe592733887f4f74c589c9602
In general, we seem to find uncompressed addresses with funds that pre-date the pool inception.

Quote
However if you happen to find the expected bounty and then skip to the next range there is a chance you will miss a larger bounty in the remainder of the range.

We know. We perform an exhaustive search. It's just for this specific #51 we skipped around 370 tn keys, because it has funds and it would be nice if the LBC finds it before someone else does. Then we return to our normal mode of operation.



Rico
legendary
Activity: 2646
Merit: 1137
All paid signature campaigns should be banned.
This puzzle is very strange. If it's for measuring the world's brute forcing capacity, 161-256 are just a waste (RIPEMD160 entropy is filled by 160, and by all of P2PKH Bitcoin). The puzzle creator could improve the puzzle's utility without bringing in any extra funds from outside - just spend 161-256 across to the unsolved portion 51-160, and roughly treble the puzzle's content density.

You're saying the right thing (about entropy), but you do not think it through to the end.
The 161-256 are already (as collisions) in the 1-160 search space. So for the puzzle creator there's no need to do anything. :-)


Rico
https://bitcointalksearch.org/topic/m.18206936

LBC Pool front set to 2^50 - the hunt for #51 of the puzzle transaction has begun! 0.051 BTC bounty awaits in 0-41 days. Start your engines!

Rico


What we can say with respect to these two posts:

Between 20 and 250 there were 50 - 0 = 50 bounties found.

Somewhere between 250 and 251 there is at least one bounty.
Somewhere between 251 and 252 there is at least one bounty.
Etc.

If every single private key between 20 and 250 was not tried then there is a (small) possibility that you might have missed another bounty.

Assuming no bounties were missed due to leaving holes in the search space between 20 and 250 then between 250 and 2160, instead of only 160 - 50 = 110 bounties there are 256 - 50 = 206 bounties.

So, once you find one bounty in a search space (250 ... 251 for example) you really should search the entire remaining space to see if there is a second (aliased) larger bounty!

You will be able to very easily see if you find an "extra" bounty in a range before the expected bounty because the bounty will be much larger than expected. 

However if you happen to find the expected bounty and then skip to the next range there is a chance you will miss a larger bounty in the remainder of the range.
legendary
Activity: 1120
Merit: 1037
฿ → ∞
https://bitcointalksearch.org/topic/m.18206936

LBC Pool front set to 2^50 - the hunt for #51 of the puzzle transaction has begun! 0.051 BTC bounty awaits in 0-41 days. Start your engines!

Rico
legendary
Activity: 1120
Merit: 1037
฿ → ∞
This puzzle is very strange. If it's for measuring the world's brute forcing capacity, 161-256 are just a waste (RIPEMD160 entropy is filled by 160, and by all of P2PKH Bitcoin). The puzzle creator could improve the puzzle's utility without bringing in any extra funds from outside - just spend 161-256 across to the unsolved portion 51-160, and roughly treble the puzzle's content density.

You're saying the right thing (about entropy), but you do not think it through to the end.
The 161-256 are already (as collisions) in the 1-160 search space. So for the puzzle creator there's no need to do anything. :-)


Rico
sr. member
Activity: 413
Merit: 250
CryptoTalk.Org - Get Paid for every Post!
So hard to solve for this even a genius may take time reviewing this
legendary
Activity: 1120
Merit: 1037
฿ → ∞
LBC has found #50 yesterday. See also

https://bitcointalksearch.org/topic/m.18181115

Next stop: 51 - with funds (so far).

Rico
newbie
Activity: 2
Merit: 0
This puzzle is very strange. If it's for measuring the world's brute forcing capacity, 161-256 are just a waste (RIPEMD160 entropy is filled by 160, and by all of P2PKH Bitcoin). The puzzle creator could improve the puzzle's utility without bringing in any extra funds from outside - just spend 161-256 across to the unsolved portion 51-160, and roughly treble the puzzle's content density.

If on the other hand there's a pattern to find... well... that's awfully open-ended... can we have a hint or two? Cheesy
legendary
Activity: 3808
Merit: 1723
Up to 300% + 200 FS deposit bonuses
I tried what you guys suggested and now I am getting hundreds of errors like

undefined reference to 'clRleaseContent' etc

No clue how to get the GPU to work under Windows. Even if it doesn't get these errors, it doesn't find the AMD GPUs.
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