I don't think it would be necessary to even try this. I would think that most financial services companies are aware of bitcoin and are already doing their research on it.
yeah in this case it's me but I want to do a preso on it to introduce and explain it to the rest of the staff. I'm not looking for any freebies here, I've got some info already put together. I just wanted to know if anyone thought there were specific good videos, papers or news articles that should be included that I may have missed. |
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Read the whitepaper and explain it in your own words  haha yes well I have learned a lot and will certainly share all of that in my own words but was interested in any pertinent material already produced. |
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hey Luke-jr, could your spam filter be used on something like p2pool?
From my understanding of the ability to inject non-financial data into the blockchain, it would make sense to filter this "junk" out to guarantee the integrity and efficiency of the ledger. Sure, it's on my personal git repositories as the "spamfilter" branch - merge it to whatever you're normally running. I'll probably try to do a 0.9-based mining branch sometime soon with that and more miner features... sorry mate can't see it. could you link me please? git pull git://gitorious.org/bitcoin/luke-jr-bitcoin.git spamfilter thanks mate, will check it out. |
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I am putting together a session to introduce Bitcoin to a company doing financial analyses. I was going to use the intro text from Bitcoin.org faq but what other key things should I include.
Looking for any key articles or videos that do a great job at explaining Bitcoin to both new users and to those with Quant and Financial backgrounds.
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hey Luke-jr, could your spam filter be used on something like p2pool?
From my understanding of the ability to inject non-financial data into the blockchain, it would make sense to filter this "junk" out to guarantee the integrity and efficiency of the ledger. Sure, it's on my personal git repositories as the "spamfilter" branch - merge it to whatever you're normally running. I'll probably try to do a 0.9-based mining branch sometime soon with that and more miner features... sorry mate can't see it. could you link me please? |
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On a brighter note - 7 blocks & counting......  That's great. Now if only it was usable by smaller miners. I was squeezed out. My node is empty because all of them had the same hash rate or me (1.2 TH/s) or lower, and couldn't get any shares. There are few things more frustrating than waiting 18 hours for a share only to see it roll off in 24 hours without a block.  M Not to sound harsh, but mining in general is not going well for small miners. This doesn't appear to be a p2pool problem, but a general bitcoin problem. It's the nature of the beast. I'm doing just fine on a "conventional" pool. M I don't know what you are talking about, I am getting great results on p2pool. I get around $40 a week on 400gh/s. I think that's pretty good. I got $40 only overnight. I thought even with higher pool hash rate and less shares you still get the same overall because you get more frequent smaller payouts. Over time (and for smaller miners perhaps a great amount of time) p2pools payout should always be about the same, and often better as shown in the recent pool comparison thread. As your hashrate represents a smaller % of the global pool variance will increase. There are plenty of small miners that have mined successfully on the Coin Cadence node, it just takes great patience to wait for the share, and then hope a block is found while its valid. Today is a great example of a huge payday for a small miner with a share in the chain... Its also not hard to look back and find a relatively long period of time where they may not have had a share and may have gone a while without payout... Here is an example of a ~350GH/s miner on my node who cleaned up today: http://minefast.coincadence.com/miner.php?id=1GiGw23Y6hvD7TtEw1s29hMkaoUPHJ7Z7pyeah so that's kind of my point. put up with the variance and support distributed hashing. anyway here are my stats: http://minefast.coincadence.com/miner.php?id=1MinerGcfwXJW6BETKLPQTmKYomc1uGAXyI've had my miners up and down and some node tweaks of late so it's been up and down but all stable now. The data is there for all to see and you can look up my address on blockchain to see how I've done on p2pool over the last 4-6 months. My original hash rate up until about 1 month ago was only 230gh/s now it's 430gh/s avg. If you are considering mining on p2pool or leaving p2pool, check out the returns I've had. my ~$500 worth of mining kit has paid for itself (excluding power costs) already. |
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hey Luke-jr, could your spam filter be used on something like p2pool?
From my understanding of the ability to inject non-financial data into the blockchain, it would make sense to filter this "junk" out to guarantee the integrity and efficiency of the ledger.
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On a brighter note - 7 blocks & counting...... That's great. Now if only it was usable by smaller miners. I was squeezed out. My node is empty because all of them had the same hash rate or me (1.2 TH/s) or lower, and couldn't get any shares. There are few things more frustrating than waiting 18 hours for a share only to see it roll off in 24 hours without a block. M Not to sound harsh, but mining in general is not going well for small miners. This doesn't appear to be a p2pool problem, but a general bitcoin problem. It's the nature of the beast. I'm doing just fine on a "conventional" pool. M I don't know what you are talking about, I am getting great results on p2pool. I get around $40 a week on 400gh/s. I think that's pretty good. I got $40 only overnight. I thought even with higher pool hash rate and less shares you still get the same overall because you get more frequent smaller payouts. |
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how small are you talking about? I understand you need minimum 50gh/s now to get into a payout. I have ~450gh/s on p2pool and it pays out well. around $30-40/week.
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This actually cost me more than $50AU. I have two of them and do not need the extra. I don't have a meter that runs 15a so can't give the power factor on it unfortunately.
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Well there's a pretty big difference between 80+ and 90+, especially if it's almost fully loaded and running 24/7. Well I forgive your laziness too  The best I can find is that these PSU's are very efficient at high load at around 99% but are more like 80-90% at lower loads. Most Dell power supplies are 80+ certified and all the server PSU's in that range are 80 plus gold or platinum. http://www.plugloadsolutions.com/80PlusPowerSuppliesDetail.aspx?id=26&type=1 |
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Forgive my laziness, but what is the efficiency rating on this? Price seems pretty low unless it has bad efficiency.
Not sure of exact efficiency but my understanding is that dell server psu's are 80+ rated |
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Pinout has been found and unit can be hard powered on as well as control of the fan speed. Rating is 2100Watts, 175A 12v rail. Noise is medium, not as much as a server in high heat mode but a little more than an adjusted 2950 psu. You could run 5 Antminer S1's off this! all you need is a yellow 12v automotive spade connector crimped to either nice thick 15g power or pcix power connector. Really easy install. very similar to the pe 2950 psu. Power is a 20a c19 plug but you could run it off a 15a or even 10a socket if you wanted and you keep the load low. PM me for offers, this is a 240v psu located in Sydney, Australia but will ship nationwide. (happy for local pickup) Price guide is ~$50AU plus shipping but will accept best offer. Don't miss out on this beast. Below is an example of the model: http://www.amazon.com/Dell-PowerEdge-Supply-AHF-2DC-2100W-0HY334/dp/B00686HOT0 |
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Edit: Makes me wonder how much better p2pool would be if it was also in C++......
c/c++ are much better suited to the task than python. Python may be quick for development but p2pool has outgrown it. I toyed with the idea of rewriting p2pool in c ages ago but it's a veritable bootload of work. On the other hand, I may find a way to hook something like p2pool into my ckpool code or vice versa. I suggested rewriting an alternative p2pool based on C++ over a year ago when I first got tired of the lack of development: https://bitcointalk.org/index.php?topic=213051.0but was unable to find anyone to do it at the time. I also got chastised for even suggesting it..... I'm also wondering if Bitmain are using python for the version they're working on, but don't think it will come out for a while yet, if at all. It is a crapload of work ck, but if you get the urge......I'm sure there are many p2pool users here who would be more than happy to help you out - as well as make it worth your while.....  Can't think of anyone better to do it actually. Hells yeah, I would love to see it written in c/c++ then it can be compiled for a native windows service. (yes I run windows servers). It would likely make it more accessible to other devs to contribute as well. |
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Found it! different to every other Dell power supply lol http://www.rcgroups.com/forums/showthread.php?t=1005309&page=82#post20789737all the info you need. (yes you could run this off a 10 socket as long as you don't exceed the amperage). This is what will run 2 x s1's (maybe soon to be s3's) and a 30gh/s bfl single. overkill yes but that means the psu will be nice and cool and efficient. |
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The giveaway is real but remember they did say first come first served. They are not going to give away all of their hashing power. I was given ~1gh/s of the cloud hashing.
Your workers 5m 15m 1h 1d Unassigned Earnings
UMISOO 0.8007 0.9368 1.046 1.0413 1.905e-05
1gh/s is nothing. M haha it's close to nothing but it's not nothing. they said they would give free hashing, and they did. it's just not very useful |
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The giveaway is real but remember they did say first come first served. They are not going to give away all of their hashing power. I was given ~1gh/s of the cloud hashing.
Your workers 5m 15m 1h 1d Unassigned Earnings
UMISOO 0.8007 0.9368 1.046 1.0413 1.905e-05
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so how does it work. 1 umisoo is what exactly?
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