Bitcoin Forum

Should be watched: http://blockchain.info/blocks/83.169.22.26 (http://blockchain.info/blocks/83.169.22.26)

Is that around 1750Gh by my calcs?  ???

very strong miner or pool located in germany, so it cannot be GPU because of the high electricity costs --> ASIC??

http://blockchain.info/address/1LiumsurZnP2GAA78twQ6obKb1DWi1bUwv

That's deepbit. Notice a payout heading to 1vaynert?

no, I mine with deepbit.net. it's luck isn't so good at the moment.

you're right. it is deepbit. but why are the blocks not on their website?

http://blockchain.info/block-index/276749/00000000000005158434b1567427e8ebaa017e5660e37068fa438b862f20c9dc

http://blockchain.info/address/1LiumsurZnP2GAA78twQ6obKb1DWi1bUwv

EDIT: fishy thing!

They are listed on deepbits website, if you take in to account the 1+ hour delay.
https://deepbit.net/stats
Blockchain.info is not an authorative source for block origins, they just make educated guesses, and quite often wrong, particularly when it comes to deepbit.

i corrected it. see https://bitcointalk.org/index.php?topic=3889.msg1150792#msg1150792

what is the "authorative source for block origins"?

EDIT: or better who is the "authorative source for block origins"? bitcoind?

There isnt really one, since no pool or solo miner has to come forward and claim the block; but the best public source would be this:
http://blockorigin.pfoe.be/

blockchain.info has to maintain the IP list but if a pool decided to open a new datacenter location with a new IP blockchain.info cannot know that this new IP is dedicated to a pool. see my guess regarding Slush's pool here https://bitcointalk.org/index.php?topic=105116.msg1150648#msg1150648

Possible that Deepbit is redirecting some of its hashrate and the pool op is lining his pockets with unreported blocks? kinda explains why they've had bad luck recently

this thread again?????????????????????????????????????

blockchain.info takes best guess from the 1st IP they see relaying a block

you do not need to create a block to relay it!!!!!!


many blocks have been announced by other miners through Deepbit that don't belong to Deepbit as well.

http://blockchain.info/pools this page says

Hashrate distribution An estimation of hashrate distribution amongst the largest mining pools
The graph below shows the market share of the most popular bitcoin mining pools. It should only be used as a rough estimate and for various reasons will not be 100% accurate. A large portion of Unknown blocks does not mean an attack on the network, it simply means we have been unable to determine the origin. If you can identify any of the ips in the unknown list please post here.

they state they are not definitive, please stop treating them like they are.

http://blockorigin.pfoe.be/top.php at least states "We have no data about 197 (9.77%) blocks." it sort of helps ppl not to go "OMG UNKNOWN!!!!"
cheers
Graet

my thoughts too!

Unlikely.
They do, however, employ a few of these tricks to make it harder for people to hop. It took me the best part of a week to get my proxy to reliably hop deepbit  ;)

Deepbit stats are analysed to death. For instance by organofcorti:
http://organofcorti.blogspot.be/2012/03/21-deepbit.html

It would make absolutely zero sense for Deepbit to steal a few 50BTC blocks and risk their pool altogether when they are making over 2000 BTC per month in fees without cheating.

Deepbit's average round length / D for the last week was close to spot on average. The negative binomial CDF prob for the week was approx. 0.5

Have a look at this post if you want to check DeepBit's stats compared to other pools: http://organofcorti.blogspot.com/2012/09/8th-september-weekly-pool-statistics.html

I may not agree with [Tycho]'s dogged continuation of the proportional reward method, but I have never seen anything remotely resembling block theft.

It's possible I suppose - I'm not sure I would be able to detect any significant change from expected if one block in a thousand was misappropriated - but then you wouldn't notice any change in luck either. This sort of behaviour is also not what I'd expect of [Tycho]. In my dealings with him he has never been underhanded and always honest.

Implying Pools are fair 100% of the time.

shouldn't they?? guess they should.

Deepbit doesn't need to be fair when they have some people mining PPS with a 10% fee  ;)

indeed!

How is Deepbit being unfair when people *CHOOSE* to mine PPS there?  Respect peoples choice to mine where they want for whatever reason they have.  If some poor schmuck doesn't understand how PPS works then explain it to them when they ask.

This whole thread has the purpose of stirring up distrust with no proof.  So either present your proof for your accusations or stop spreading FUD.
Sam

Don't get me wrong - I love deepbit. I make more off deepbit than I make off any other pool  ;)

Sorry, I didn't really mean to yell at you.  It's the tone of this whole thread that I think is unfair to Deepbit.

I don't understand why anyone would pay 10% fee for PPS either and I wouldn't have believed anyone still did until today.
I'll just pipe down now,
Sam

This whole thread is completely based on a misunderstanding of variance and how shares are solved. People are suspicious here and want to blame someone for bad luck. I sort of understand it, but I think it would be better if people understood what they were saying before they start making accusations.

I disagree, my intention was to have a look at the network. Are there persons who take a look at the nework all the time? Then I would be fine. Thanks!

Yes, I take a look at the network at least once a week, every week: http://organofcorti.blogspot.com , look for the "Weekly pool statistics" posts. Plus, I don't deny your intention was to investigate the network, it's just much more complex than you might think. Read some about the geometric distribution and negative binomial distribution if you want to understand the probability and variance for the number of shares in one round or many rounds respectively. Read about the Poisson distribution if you're interested in the number of blocks a pool might solve in a given time period.

yes I understand this in the meantime and I have to do more research on it.  :)

You can never trust  pools 100% of the time. I've been there, and done that.

I'm a big believer in "Trust but Verify".
Sam

Do tell...

Me too! It is a worldly wisdom. Lenin did only adopt it. :D

http://en.wikipedia.org/wiki/Trust,_but_verify (http://en.wikipedia.org/wiki/Trust,_but_verify)

That's an attitude, but it can be hard to make sure your data isn't skewed.


What do you mean? IIRC, Slush indirectly admitted to being able to steal blocks without anyone knowing. It's even easier to steal shares. I got scammed by a pool that stole 2-3 blocks and a 'block finder's bonus'. Though, that panned out in the end, because the community is very nice.

What did I mean? What was your scamming experience and at which pool did you get scammed? You partly answered the question.