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441  Bitcoin / Mining speculation / Re: Interesting Observation - Jr. Members talking about ASIC on: December 17, 2012, 05:56:22 AM
Just something I wanted to point because I thought it was interesting.


I see many posts on here that seem to discuss ASIC in regards to there affect on mining.   When I look at who is posting them and the subject matter, they seem to be a bunch of new members and at some point in their post history, they support BFL and dismiss or question other companies competing products.

For some reason it seems interesting that they all seem to come here to talk good about BFL's products, that is the common thread.  One that was funny is the "person" who in the introduction is "Hi I am a ASIC engineer from China".  Who are these people? 

Some people take "lurk moar" seriously. The rest are either being paid eleventy billion monopoly dollars to support the company, or they pre-ordered and want BFL to succeed for their own sake.

Of course, there may be a silent majority that just never bothers to post while patiently awaiting their pre order.
442  Bitcoin / Hardware / Re: Absolutely genuine SHA ASIC pictures on: December 17, 2012, 03:46:15 AM

Hmmm...

Quote
Therefore any valid result has to be recovered in a SINGLE clock cycle of the master clock before the result is lost.

This is wrong. The nonce is highly predictable, since it is normally just incremented. You can get the nonce a couple clocks late and scan back in the mining software to find the true nonce.

What is the point of the article? "Open source project has minor flaws that are easily fixed?" I'm guessing that he/she didn't bother to submit a patch.

Also, the hashing ASIC referred to at the end would be useless for mining.
443  Bitcoin / Hardware / Re: [Announcement] Avalon ASIC Development Status [Batch #1] on: December 17, 2012, 02:19:49 AM
or are we just going to "pretend" there was only 1 result and discard the other solutions

Yes. I don't care if 0.000001% of results are lost.

Edit: What failure rate would be acceptable to a "serious" miner? I'm guessing that 0.1% would not even be noticeable.
444  Bitcoin / Hardware / [Archive] BFL trolling museum on: December 16, 2012, 08:03:14 PM
1) Simply ask them what is so great about BFL. (in very concise terms...no vague remarks)

2) Then, ask them how they view the faults of BFL. (again, in very concise terms)

3) Once they have excused their chosen vendor for their errors, however grave it may be...

4) Use or "Adapt" the exact same reasons and words they used or employed to defend your own vendor.

1) Community as a whole benefits from ASIC vendor competition. BFL's chips should be more efficient (due to 65nm).

2) I don't care, as long as they eventually deliver. The 65nm process is riskier but should keep their product competitive for longer, even if Avalon delivers sooner.

3/4) Obviously I also want to see Avalon and the others succeed. Competition is beneficial.
445  Bitcoin / Hardware / [Archive] BFL trolling museum on: December 16, 2012, 10:27:24 AM
This is the most pathetic thing I've ever seen ...

Um, it's an online promotion. They're all over the interwebs in various forms.

Edit: You have inspired me to participate. U mad?
446  Bitcoin / Hardware / Re: [Announcement] Avalon ASIC Development Status [Batch #1] on: December 16, 2012, 07:39:39 AM
I am sort of remembering the 7.5*7.5mm number for BFL was the size of the package and not the die size. I am not sure the die size was never revealed but it must be much smaller to fit into the package.

As I recall, the BFL package size was 11mm*11mm.

How would one organise 88 chips? Would it be a good idea to put them all on one PCB, or stack PCBs with 22 or 44 chips?
447  Bitcoin / Hardware / Re: [Announcement] Avalon ASIC Development Status [Batch #1] on: December 16, 2012, 12:50:16 AM
I suppose that will mean they will miss their original goal of 15-30 chips per unit, unless BFL's chips are smaller than they say, or the Avalon chips can be clocked much more aggressively, or Avalon has a much better design.
448  Bitcoin / Bitcoin Discussion / Re: 7 simple rules to mitigate most threats related to passwords on: June 26, 2011, 07:19:06 AM
Dictionary words are always a bad idea, even though you are correct that length does always make a password stronger.

Not necessarily. Four obscure words joined together may be beyond the length of what many popular cracking tools support, and of relatively high strength. Assuming each word is only found in 100k+ dictionaries, there are 100000000000000000000 possibilities.

If such passwords are not strong enough, you really need to reconsider how much of your life should be tied to computers.
449  Bitcoin / Bitcoin Discussion / Re: 7 simple rules to mitigate most threats related to passwords on: June 26, 2011, 07:12:18 AM
Using Sha512 instead of MD5 will change nothing.

What you mean is that it will not change enough.

Each hash will still take ten times longer, and remove a layer of script kiddies who can't be bothered finding cracking tools that support SHA-512.
450  Bitcoin / Bitcoin Discussion / Re: I found a way to short BTC on: June 26, 2011, 05:32:00 AM
1. Buy 50 BTC on Mt.Gox during crash at very low price. 
2. Withdraw BTC up to daily maximum. 
3. Wait for MtGox to reverse the trade and give you a negative BTC balance.

Can you find a method that doesn't involve time travel and/or exchange-wide misfortune please?
451  Bitcoin / Bitcoin Discussion / Re: Is there a maximum difficulty? Or can it just go up forever? on: June 26, 2011, 04:45:40 AM
The maximum difficulty is roughly: maximum_target / 1, which is a ridiculously huge number (about 2^224).

And what variable type can hold a number that large?

To clarify...  I am just thinking how a standard win32 integer type can only hold about 4.3 billion different values.  I know in theory that difficulty can grow up to at least 2^224 (ty demonefelru) but if the client tried to store that in a standard integer variable...

The client appears to contain BigNum classes which can store arbitrarily large numbers.
452  Bitcoin / Bitcoin Discussion / Re: MTGOX opening - GOXED on: June 25, 2011, 03:02:27 PM
I thought of a clever way to work "goxed" into the title of the exchange, only to realise that that is where the name came from.

Brain is goxed by lack of sleep.
453  Bitcoin / Bitcoin Discussion / Re: MTGOX SO SICK OF THEIR BULLSHiT Should start a class action suite on: June 25, 2011, 02:50:23 PM
1. Security

That ship sailed long ago.
454  Other / Off-topic / Re: Complete explanation for all the hacks lately. on: June 25, 2011, 02:10:45 PM
In closing, there doesn't exist a single forum thread here whining about 'losses' or 'hacks' that doesn't wreak of the yearning for government involvement, regulation and guarantee

Cool story bro. You're only seeing this because you want to see it. Analyse most of the threads objectively (you'll need to get someone else to do this for you) and you won't find any of that shit at all (I just did it for you).
455  Other / Off-topic / Re: Complete explanation for all the hacks lately. on: June 25, 2011, 02:07:02 PM
Since when does being on a botnet mean you don't have a graphics card??  Huh

Since when does posting on a forum mean you can use a straw man??  Huh

ATI has 24% market share overall. Most of those would be low-end cards not very useful for mining. NVIDIA cards aren't very useful for mining, and low end ones are completely useless. Most PCs will have integrated Intel graphics. Unusable.

Botnets tend to target PCs running unpatched windows XP. These PCs tend to have older hardware.

GPU mining can take some effort to set up manually, and can have issues with driver versions and such. GPU mining causes very noticeable performance problems and in many cases system instability. Hardware-accelerated video (eg. on youtube) can sometimes completely freeze the system if mining at the same time. Other programs are guaranteed to freeze the system with certain setups. When someone's PC starts running like a piece of shit they tend to install firewalls/get it wiped/replace it with a mac. If the user notices a fan running loudly at all times they will probably shut down the PC as soon as they're done using it to make the noise go away.

So yes, including GPU mining in your botnet is a nice way to cause your botnet to shrink and disappear.

CPU mining on the lowest priority would almost certainly go undetected. (CPU fans tend to be quieter).

I am sure that with your phearsome programming skillz all these problems will magically vanish.
456  Other / Off-topic / Re: Complete explanation for all the hacks lately. on: June 25, 2011, 12:43:13 PM
How did you setup 20,000+ machines in two weeks?

It's either a CPU botnet (equivalent to under 500 GPUs) or complete BS.
457  Bitcoin / Bitcoin Discussion / Re: Do you think that the adjective 'goxed' will enter the general vernacular now? on: June 25, 2011, 12:18:34 PM
We might regret this if they make a strong comeback.

Then it will simply be ironic.
458  Other / Off-topic / Re: Complete explanation for all the hacks lately. on: June 25, 2011, 12:01:23 PM
Although it's true that the government can't stop people from liking or attempting to use Bitcoin in private, how do you think the internet exists? Magic? Your connection is a privilege of your government's legal system and the businesses who provide it. It is not a 'right'.

I don't know about your government, but my government is building a FTTH network for more than 93% of the population just to make sure that we have good internet. They have made suggestions that they consider it to be a "right". If they started terminating connections at random (and they don't have the legislative power to do this) then they would fuck up a lot of business and lose the next election.

If democracy doesn't work in your country, move to a better one.
459  Other / Off-topic / Re: Complete explanation for all the hacks lately. on: June 25, 2011, 11:49:13 AM
Disclaimer: I have 20,000+ machines mining coins in South Korea. The social network I run uses BitCoin as a currency. I wrote my own BitCoin Mining virus, and am now writing an Anti-virus for the community. I have only known about BitCoin for 2 weeks. Be afraid.

BRB, shitting myself.
460  Other / Off-topic / Re: fuck you mtgox on: June 25, 2011, 04:01:20 AM
you share part of the blame though, for using same password everywhere. Stop doing it.

Mt Gox shares most of the blame for leaking their fucking accounts database with unsalted MD5 hashes.

If Mt Gox had a notice on the sign up page: "Warning: we will send your password to our accountant for no particular reason" then sure, I would agree that it is the OP's fault for not choosing something stronger/unique.

It is important to understand that the average user doesn't know why a strong password is needed. They assume that they only need something that won't be guessed. Even a knowledgeable user could reasonably assume that Mt Gox would actively protect their database, and not send it to anonymous strangers for no particular reason.

When it comes down to blaming a user who should have been more careful, or a someone in a position of trust who did something retardedly stupid, I tend to blame the latter.
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