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could You please explain why he cant prove to players that the site is fair? when using TRNG
i think he interpreted using a trng as a replacement for the client - server seeds, instead of just for the generation of the server seed. In the original quote stream was the following comment: ofc it is prng. jd uses a sha512 hmac of a seed to generate the lucky numbers. for all intents and purposes this is absolutely random. if you find a pattern, it would imply a serious breakthrough in the field of cryptography (effectively breaking sha).
If a "TRNG" replaced the hmac-sha512 with server and client seeds scheme it would be impossible to prove if the numbers were fairly generated. |
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thanks for clarifying. why is he not using a TRNG?
trng? i assume you mean a 'truly' random generator. simply because obtaining random data is very hard (not 100% sure, but i have doubts that something like a TRNG exists). On the level JD is operating on (software on a server), you do not have random input with which your software can work with. OS random generators usually work by taking as inputs various pieces of information (such as time, etc.) and then applying algorithms to them. This results in seemingly random data, however, technically speaking, it is not truly random. If you want to come closer to pure/true randomness, you would need a special hardware-based generator (for example, one that measures micro turbulances in the air) and base your data off it. Randomness is a tricky topic  He's also not using a "TRNG" because then it would be impossible to prove to players that the site was fair. |
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3 player currently making 100btc+ bets, holy hell...
Don;t you wish the max profit was 1% so we could have even higher variance? Mechs, you amaze me. You do realize that the more players we have doing near max profit bets the lesser variance we have, right? And YES, I'd like to have full Kelly again, as 99% of investors who understand how math works. No way, broseph. We won when we were at 1/4 Kelly and lost since we've been at 1/2 Kelly so LDO 1e-12 Kelly max bet will produce unlimited profits LOL :-P |
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FACT: investing on JD is of gamble just as wagering, and in theory, investors have an advantage of 1%.
However, big variances do happen from time to time (as shown by me before, for example; and ID 105829 won 1007 last 24 hours.)
The problem? A house edge of 1%, too small to shield investors who are trying to gamble against players. (Some developers in this community are evening trying 0.8% house edge, holy s..t).
Discussing how to rectify the mechanism of investment structure is pretty pointless. IMO.
Come back any time. |
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It seems like people here think the term 'Investor' somehow means that no risk is being taken and they should have guaranteed profits.
Yeah, just like in the stock market :-P |
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Fun little paper on the Gambler's ruin problem that you can play around with: http://www.columbia.edu/~ks20/FE-Notes/4700-07-Notes-GR.pdfOf course these equations need some modification to take into account the varying max bet size, but I figure there's only a 0.9% chance of someone with a bankroll equal to the house's winning 90% of the bankroll before losing 90% of his bankroll at a 1% max bet and 2x payout. |
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Just tried to load site on my phone. It's broken in both chrome and Firefox. Looks like CSS doesn't load.
Confirmed on PC as well. |
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A PCI-E card with two 8-pin power connectors can draw up to 375 W total. 150 W from each of the two connectors and 75 W from the motherboard connector. This will require large fans a la the latest video cards that draw this much power. Well it can't pull any power from the motherboard. BFL claims the product can be connected by EITHER PCIe or USB. So when connected by USB that would mean it isn't connected to motherboard's powerlanes. So either it is going to be three 8 pin PCIe connectors or they will need to run it overspec. No I am not making this up. We're in agreement. If it's plugged in to a PCI-E slot it can get 75 W from there and then draw 150 W each from two 8-pin connectors. If it's hooked up via USB it will need three 8-pin PCI-E or some other high-power connector from an external PSU because you're not getting 350 W through a USB cable :-) |
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apparently they wouldn't even be cooling the monarch properly, as that many watts in such a small area would require something more than the blower fan it shows in the pictures.
How much does it pull? ( keeping in mind a 7970 mining litecoins can do something ridiculous like 300W and still be cooled adequately on ONE die) A PCI-E card with two 8-pin power connectors can draw up to 375 W total. 150 W from each of the two connectors and 75 W from the motherboard connector. This will require large fans a la the latest video cards that draw this much power. |
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I was not able to replicate with a VMWare machine (40 GB storage). Does the problem only occur with the SSD, or does it happen on other drives as well? Try using "-datadir=D:\bitcointemp" command line option to set the data directory to another drive.
I will try this but unfortunately the problem does not occur consistently. I've seen it twice in two weeks but never before then. Am still hoping that someone else has seen it! *grins* I hope I am not revealing your prank, but you'll scare the shit out of him when he notices that his wallet is empty when he points to a new (and initially empty) data directory !
Hehe that's a good one. Despite my Jr. Member status I've been around Bitcoin since early 2011 so I'd have not freaked out  |
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OS: Windows 7
Bitcoin-Qt: 0.8.2
Disk: Samsung 830 series 250 GB SSD
Occasionally Bitcoin-Qt will pop up a "low disk space" error message and then close after I click OK. While the message is being displayed other programs, including Google Drive and Windows Explorer, are also reporting low disk space. As soon as I click OK the disk space on the Bitcoin data directory disk goes back to normal showing over 100 GB free. So it appears that something is causing Bitcoin-Qt to fill up my disk, but that these files are temporary in nature as they are apparently deleted when the client exits. It is apparently not a virtual memory issue either as I have the page file size set to a maximum of 1 GB.
I have not seen this behavior with bitcoind 0.8.2 on another machine that runs Linux. Has anyone else experienced this?
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I am also running into the RPC lockout problem. My setup is two HD6990s on two machines behind NAT with a single public IP. I'm able to start two copies of phoenix on one machine, but then no other machine behind my NAT can contact mining.bitcoin.cz either for RPC or just to browse the web site. At first I thought it was the large number of TCP connections created as I had 70 or so connections from the one machine on which phoenix was running. However using DiabloMiner I'm able to launch an instance on each machine and the number of active connections jumps up to 130 or so. I'm running the following on Ubuntu 11.04: - Python 2.7.1
- pyopencl 2011.1beta3
- boost 1.42
- twisted 10.2
Thanks for the great miner. It increases performance on my 6990s from about 530 Mhash/sec to 670 Mhash/sec using the BFI_INT instruction! |
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