Large Bitcoin Collider Thread 2.0 - page 7.

18fdmtTHAS

newbie

Activity: 2

Merit: 0

Quote from: holy_ship on January 08, 2018, 02:21:14 AM

>Is there anything wrong

Megakeys means millions of keys. 18607006172-18607002461=3711

Thanks, but what is the relation between 3892 Mkeys and 3711 Mkeys? Did you mean the LBC client is searching in the range [18607002461x10^6-18607006172x10^6]?

Sorry for being ignorant Sad

---
Edit:

Okay I got this: https://lbc.cryptoguru.org/man/user

Quote

pages/blocks
The parameter is called "pages", for historic reasons. A page (sometimes also called a "block") contains 2^20 (1048576) private keys. The history of LBC dates back to directory.io, where 128 private keys are listed on one page. As our "pages" do have 1048576 keys and therefore each represents "8192 directory.io pages", we started to call pages blocks. You remember: pages=blocks

3711 block, each contains 2^20 key (the output has oooooo.. but I don't understand why they are not fat block) -> 3892M keys

holy_ship

jr. member

Activity: 109

Merit: 1

>Is there anything wrong

Megakeys means millions of keys. 18607006172-18607002461=3711

18fdmtTHAS

newbie

Activity: 2

Merit: 0

Guys, sorry for being noob, but what does this mean:

Code:

Ask for work... got blocks [18607002461-18607006172] (3892 Mkeys)

Does this mean my client will search in this range [18607002461-18607006172]? I believe this range is < 2^35; while LBC is already done with 2^54? I'm searching on the already searched space?

I run LBC with this command:

Code:

sudo ./LBC --address xxx --id xxx --secret xxx --cpus 8

Is there anything wrong? Thank you so much.

arulbero

legendary

Activity: 1914

Merit: 2071

Quote from: Jude Austin on January 07, 2018, 02:37:21 PM

Just curious, can this https://github.com/basil00/pairgen contribute to LBC in a way?

That program uses the Pollard rho algorithm (a probabilistic algorithm) to find a collision between any 2 addresses.
LBC checks all the private keys from 1 to 2^134 to find a collision with an address with bitcoin.

The 2 ways are very different.

Jude Austin

legendary

Activity: 1140

Merit: 1000

The Real Jude Austin

Just curious, can this https://github.com/basil00/pairgen contribute to LBC in a way?

Thanks,
Jude

BurtW

legendary

Activity: 2646

Merit: 1129

All paid signature campaigns should be banned.

Quote from: ZafotheNinja on January 01, 2018, 09:43:05 AM

The other thread is depreciated?

Quote from: ZafotheNinja on December 30, 2017, 04:45:20 PM

So, being new here in general as well as this thread I may just be ignorant but I have to ask.

If the goal of this project is to find collisions and the best way to find one is if an "owner" comes forward claiming their wallet was stolen by LBC, then why is the LBC only searching addresses that have balances "up to 1 Satoshi"? Especially given that the average bitcoin holder has a balance of 2 bits (0.0002 btc)?

I get the whole "we are searching for collisions, not trying to crack wallets" but it seems to me that you get just as many abandoned wallets with small balances as you do with large balances and that the ideal search space should be in the average balance range of 2 bits. (For that matter I would crank the number up to the 20-150 bit range considering that a guy with $20 or more in it is a lot more likely to seek out why his btc have gone missing)

I have read the entire thread as well as have used the search box and Google, however I have yet to come to an answer for this seemingly obvious question.

Edit: According to the "trophies" page the balances are 0.1 to 79 bits (0.00001 to 0.0079 btc) not 1 Satoshi? Regardless the question remains the same.

You are confused. The bits mentioned on the trophies page refer to the search space, not Bitcoin value.

Here is what you need to know:

1 Bitcoin = 1 BTC
1 Satoshi = 0.00000001 BTC
1 BTC = 100,000,000 Satoshi

On the statistics page here: https://lbc.cryptoguru.org/stats

Quote

keys per day:   282.21 tn
total keys generated:   19498.14 tn
pages on directory.io   152329.19 bn
search space covered:   54.11 of 160 bits
search space in 1y:   56.77 bits

Means:

tn = trillion
bn = billion

search space covered of 54.11 bits means LBC has tried 2^54.11 private keys (about 19,441,647,535,076,223)

search space in 1y: 56.77 bits means at the current rate they will cover 2^56.77 private keys in the next year.

On the trophies page you mentioned that "bit" was used. I only see one reference to the word "bit" and it is:

Quote

A manual revisit of the 38-42 bit search space revealed these private keys

Which simply means they were searching private keys with values from 2³⁸ through 2⁴²

Where are you getting your very confusing definition of "bit", trying to make it equal to 0.0001 BTC ? I have never seen that in all my years.

There was a push to call one millionth of a BTC a "bit" in the distant past. But that really is not what you are talking about here.

Are you trying to use the antiquated definition of 1 bit = $0.125 ? That would be really strange.

holy_ship

jr. member

Activity: 109

Merit: 1

That's a wrong statement. They are killed (with 30 seconds timeout) when there's demand from google itself.
So they live from several minutes to 24 hours.

jhdscript

member

Activity: 266

Merit: 10

Google cloud is the best but preemptive machines are killed when CPU rate is high :-(

holy_ship

jr. member

Activity: 109

Merit: 1

DigiOcean highCPU seems to be ordinary dedicated CPUs, price is $160 for 8core.

Probably google's "preemptible instance" for $40/month is the winner (8core). Speed differs from 3.1 to 3.4 megakeys.

pablito1989

member

Activity: 238

Merit: 18

which company offer the best vps for lbc? (cost/effort)
What do you think about digitalocean high cpu droplets?

ZafotheNinja

jr. member

Activity: 30

Merit: 1

The other thread is depreciated?

Quote from: ZafotheNinja on December 30, 2017, 04:45:20 PM

So, being new here in general as well as this thread I may just be ignorant but I have to ask.

If the goal of this project is to find collisions and the best way to find one is if an "owner" comes forward claiming their wallet was stolen by LBC, then why is the LBC only searching addresses that have balances "up to 1 Satoshi"? Especially given that the average bitcoin holder has a balance of 2 bits (0.0002 btc)?

I get the whole "we are searching for collisions, not trying to crack wallets" but it seems to me that you get just as many abandoned wallets with small balances as you do with large balances and that the ideal search space should be in the average balance range of 2 bits. (For that matter I would crank the number up to the 20-150 bit range considering that a guy with $20 or more in it is a lot more likely to seek out why his btc have gone missing)

I have read the entire thread as well as have used the search box and Google, however I have yet to come to an answer for this seemingly obvious question.

Edit: According to the "trophies" page the balances are 0.1 to 79 bits (0.00001 to 0.0079 btc) not 1 Satoshi? Regardless the question remains the same.

peter_d

newbie

Activity: 2

Merit: 0

Quote from: peter_d on December 30, 2017, 09:49:21 AM

Hi Rico,

I started being involved in LBC pool a few days ago, I got over 3000 Gkeys, and would like to try with GPU on a local machine and on AWS. If I do:

Code:

./LBC -q --gpu

I got:

Code:

OpenCL diganotics written.
GPU authorized: no

Is the threshold of 3000 Gkeys still used?

My id is : peter_doe

Regards,

Got a reply on discord,
GPU is enabled now.

Thanks Rico

peter_d

newbie

Activity: 2

Merit: 0

Hi Rico,

I started being involved in LBC pool a few days ago, I got over 3000 Gkeys, and would like to try with GPU on a local machine and on AWS. If I do:

Code:

./LBC -q --gpu

I got:

Code:

OpenCL diganotics written.
GPU authorized: no

Is the threshold of 3000 Gkeys still used?

My id is : peter_doe

Regards,

holy_ship

jr. member

Activity: 109

Merit: 1

Quote from: pablito1989 on December 29, 2017, 07:13:16 PM

I have a Intel(R) Xeon(R) CPU E3-1270 v6 @ 3.80GHz server and I want to do some tests with it..
Can anyone give me a step by step guide for install lbc on centos? I tried but I'm pretty noob with Linux OS.

On 6core (12ht) server you'll get around 3-4 million keys a second. It is 0.1% of pools speed.

For CentOS7 (if you are NOT root, but privileged user)
If root remove sudo

sudo rpm -vi http://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/o/ocl-icd-2.2.11-2.el7.x86_64.rpm
sudo yum -y install cpan perl openssl-devel wget make gcc bzip2

sudo cpan Log::Log4perl LWP::UserAgent Net::SSLeay LWP::Protocol::https Parallel::ForkManager Term::ReadKey JSON

wget https://lbc.cryptoguru.org/static/client/LBC
chmod 755 LBC

./LBC --cpus 12 -x
nohup ./LBC --cpus 12 > logg &
tailf logg

answer yes on all questions of third line

holy_ship

jr. member

Activity: 109

Merit: 1

Quote from: aurigae on December 27, 2017, 04:56:17 AM

10-100m? well - whats that compared to the loot

If you recover wallet with 79k BTC, the loot is more than 10-100m. But it is not abandoned.

p.s. the "loot" is actually, not what you get from wallets, but what hunters are willing to pay for ASICs. It might be a larger sum, than actual finding.

By the way, I've read that there was a lot of fraud with crowdfunding of ASICs. People payed and had to wait forever...

pablito1989

member

Activity: 238

Merit: 18

I have a Intel(R) Xeon(R) CPU E3-1270 v6 @ 3.80GHz server and I want to do some tests with it..
Can anyone give me a step by step guide for install lbc on centos? I tried but I'm pretty noob with Linux OS.
Thanks in advance

P.S.
Is that server good for this?

aurigae

member

Activity: 112

Merit: 10

Quote from: holy_ship on December 27, 2017, 04:23:15 AM

Quote from: aurigae on December 27, 2017, 01:40:27 AM

wallet miner asics work in progress yet?
a bounty pot bitcoiners/donors can donate to

The donation pot cannot collect couple of BTC for GPU development Roll Eyes

ASIC development costs around $10-100MLN.

The worst thing is - even if you get an investor with 100 megabucks, the chinese will steal your tech and start flooding the market with cheap clones.

I guess, LBC (or it's clone projects) should go the BTC way - CPU-GPU-FPGA-ASIC... GPU is still immature, no FPGA. You want too much.

10-100m? well - whats that compared to the loot

i guess its not about computation power anyways but IO. Dont have the means to test on a decent cluster - would love to do some benchmarking xD
looking for a donor lol https://www.ebay.de/itm/HP-BladeSystem-C7000-16x-BL460c-Gen8-4096GB-RAM-32x-Xeon-E5-2660v2-10-Core/222609616134?hash=item33d4912d06:g:HtsAAOSw6VRaJlHk

holy_ship

jr. member

Activity: 109

Merit: 1

Quote from: aurigae on December 27, 2017, 01:40:27 AM

wallet miner asics work in progress yet?
a bounty pot bitcoiners/donors can donate to

The donation pot cannot collect couple of BTC for GPU development Roll Eyes

ASIC development costs around $10-100MLN.

The worst thing is - even if you get an investor with 100 megabucks, the chinese will steal your tech and start flooding the market with cheap clones.

I guess, LBC (or it's clone projects) should go the BTC way - CPU-GPU-FPGA-ASIC... GPU is still immature, no FPGA. You want too much.

aurigae

member

Activity: 112

Merit: 10

Interesting project. Any wallet miner asics work in progress yet?

Once this attracts real size io/hashpower, could get interesting rather quick lol

One way to make it happen, how about a bounty pot bitcoiners/donors can donate to - would maybe motivate to mine it

BenitoM

newbie

Activity: 1

Merit: 0

Salve! Do you have instructions for new setting GPU? On i7-4820K 3.7GHz I had 3.9 million keys. Plugged gf 1050ti and now have speed 22 million.
nvidia-smi shows 6 processes with 561MiB and 4 with 49MiB. Changing --cpus from 6 to 20 doesn't matter, speed is around 21-22 millions keys.
Shouldn't be 35?

nvidia-smi -pm 1 did nothing.
With --cpus 6 I have
GPU-Utilization 60% and CPU utilization 80%. So what is bottleneck?

Temp is low (40C).

Topic: Large Bitcoin Collider Thread 2.0 - page 7. (Read 57116 times)